Papers by Chen Jin

173 papers
TRAVEL: Tag-Aware Conversational FAQ Retrieval via Reinforcement Learning (2023.emnlp-main)

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Challenge: Existing methods aim to fully utilize the dynamic conversation context to enhance the semantic association between the user query and FAQ questions, but they are limited by noise and e.g., users may click questions they don't like, leading to inaccurate semantics modeling.
Approach: They propose to introduce tags of FAQ questions to reduce noise in the conversation context and integrate them into a reinforcement learning framework to minimize the negative impact of irrelevant information.
Outcome: The proposed method can eliminate irrelevant information and minimize negative impact of irrelevant information in the dynamic conversation context.
Connect-the-Dots: Bridging Semantics between Words and Definitions via Aligning Word Sense Inventories (2021.emnlp-main)

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Challenge: Existing supervised models struggle to make correct predictions on rare word senses due to limited training data.
Approach: They propose a gloss alignment algorithm that can align definition sentences with the same meaning from different sense inventories to collect rich lexical knowledge.
Outcome: The proposed method outperforms previous methods on both frequent and rare word senses.
Causally Testing Gender Bias in LLMs: A Case Study on Occupational Bias (2025.findings-naacl)

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Challenge: Existing studies have shown that large language models can cause harmful, human-like biases against various demographics.
Approach: They propose a causal formulation for bias measurement in generative language models based on a list of desiderata for designing robust bias benchmarks and a bias-measuring procedure to investigate occupational gender bias.
Outcome: The proposed framework is generalizable and can be extended to include other datasets.
Agent-RewardBench: Towards a Unified Benchmark for Reward Modeling across Perception, Planning, and Safety in Real-World Multimodal Agents (2025.acl-long)

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Challenge: Multimodal Large Language Models (MLLMs) are developing but lack external feedback . there is no clear on how to select reward models for agents .
Approach: They propose a benchmark to evaluate agent reward modeling ability in MLLMs . they use multiple dimensions and real-world agent scenarios evaluation .
Outcome: The proposed benchmark evaluates agent performance in multimodal large language models . it covers perception, planning, and safety with 7 scenarios and is highly difficult and high-quality .
Learning What to Share: Leaky Multi-Task Network for Text Classification (C18-1)

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Challenge: Existing approaches to multi-task learning suffer from the interference between tasks because they lack selection mechanism for feature sharing.
Approach: They propose a multi-task convolutional neural network with the Leaky Unit which has memory and forgetting mechanism to filter the feature flows between tasks.
Outcome: The proposed model can filter feature flows between tasks and improve performance on five datasets.
HATA: Trainable and Hardware-Efficient Hash-Aware Top-k Attention for Scalable Large Model Inference (2025.findings-acl)

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Challenge: Existing top-k attention methods struggle to strike a balance between efficiency and accuracy.
Approach: They propose a top-k attention approach that integrates low-overhead techniques into the Top-k Attention process to achieve 7.2 speedup compared to vanilla full attention.
Outcome: The proposed approach achieves 7.2 speedup compared to current top-k attention methods while maintaining model accuracy.
EmoMM: Benchmarking and Steering MLLM for Multimodal Emotion Recognition under Conflict and Missingness (2026.findings-acl)

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Challenge: Multimodal Large Language Models (MLLMs) have shown promise in MER, but their internal decision-making mechanisms under modality conflict and missingness remain underexplored.
Approach: They propose a multimodal large language model that can detect and control modality conflicts and missing subsets by a lightweight mechanism that detects and controls modality conflict.
Outcome: The proposed framework improves performance across settings, showing it can handle conflict and missing behaviors.
DRAE: Dynamic Retrieval-Augmented Expert Networks for Lifelong Learning and Task Adaptation in Robotics (2025.acl-long)

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Challenge: Experimental results show that Dynamic Retrieval-Augmented Expert Networks outperforms baseline approaches in long-term task retention and knowledge reuse.
Approach: They propose a dynamic routing architecture that leverages MoE and Retrieval-Augmented Generation to augment the learning process.
Outcome: The proposed architecture outperforms baseline approaches in long-term task retention and knowledge reuse.
Beyond Under-Alignment: Atomic Preference Enhanced Factuality Tuning for Large Language Models (2025.findings-naacl)

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Challenge: Existing work evaluates the factuality of large language models on in-domain (ID) datasets and the factuality on out-of-domain datasets.
Approach: They propose a framework that enhances model’s awareness of factuality at the granularity of individual facts and propose 'Atomic Preference Enhanced Factuality Tuning' this framework enhances the model’ s awareness and accuracy of factual information at the level of individual factual facts.
Outcome: The proposed framework improves model performance by an average of on ID and OOD datasets, which is highly effective.
SQLForge: Synthesizing Reliable and Diverse Data to Enhance Text-to-SQL Reasoning in LLMs (2025.findings-acl)

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Challenge: Existing closed-source LLMs have a performance gap in text-to-SQL reasoning tasks.
Approach: They propose a SQL-based approach to synthesize reliable data to enhance text-to-SQL reasoning in LLMs.
Outcome: The proposed model achieves state-of-the-art accuracy on the widely recognized Spider and BIRD benchmarks, significantly narrowing the performance gap with closed-source methods.
Tracking Life’s Ups and Downs: Mining Life Events from Social Media Posts for Mental Health Analysis (2025.acl-long)

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Challenge: Existing studies have indicated that major life events can greatly impact individuals’ mental health, but shedding its light on social media data is challenging due to the complexity and ambiguity nature of life events.
Approach: They propose to extract life events mentioned in posts on social media to uncover a social media event dataset which includes 12 major life event categories that are likely to occur in everyday life.
Outcome: The proposed dataset includes 12 life event categories that are likely to occur in everyday life and is human-annotated under iterative procedure and boasts a high level of quality.
POLYCHARTQA: Benchmarking Large Vision-Language Models with Multilingual Chart Question Answering (2026.acl-long)

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Challenge: Existing chart understanding benchmarks are overwhelmingly English-centric, limiting their accessibility and relevance to global audiences.
Approach: They propose a multilingual chart question answering benchmark that enables efficient multilingual generation via data translation and code reuse.
Outcome: The proposed benchmark systematically evaluates multilingual chart understanding on state-of-the-art LVLMs and shows a significant performance gap between English and other languages.
TrInk: Ink Generation with Transformer Network (2025.emnlp-main)

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Challenge: Existing methods for handwriting generation capture global dependencies and can generate high-quality handwritten samples.
Approach: They propose a Transformer-based model for ink generation, TrInk, which captures global dependencies.
Outcome: The proposed model reduces character error rate and word error rate by 35.56% on the IAM-OnDB dataset compared to previous models.
WavRAG: Audio-Integrated Retrieval Augmented Generation for Spoken Dialogue Models (2025.acl-long)

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Challenge: Existing RAG frameworks rely on Automatic Speech Recognition to process speech input, which discards crucial audio information and increases computational overhead.
Approach: They propose a retrieval augmented generation framework with native, end-to-end audio support that integrates audio and text into a unified knowledge representation.
Outcome: The proposed framework can perform 10x faster than current pipelines while delivering 10x acceleration.
Look Light, Think Heavy: What Multimodal Chain-of-Thought Reasoning Can and Cannot Do (2026.acl-long)

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Challenge: Existing open-source models often yield only marginal overall improvements, possibly due to an overemphasis on mathematical reasoning at the expense of broader capabilities.
Approach: They evaluate 12 multimodal tasks using 14 non-reasoning models and 8 reasoning models.
Outcome: The proposed method is effective in multimodal reasoning tasks, the authors show . they show that it lacks the ability to maintain deep visual introspection throughout the reasoning process.
Omni-Chart-600K: A Comprehensive Dataset of Chart Types for Chart Understanding (2025.findings-naacl)

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Challenge: Existing chart-related training methods lack capabilities in information extraction, mathematical reasoning, and understanding of multiple chart types.
Approach: They propose a two-stage training strategy and method for jointly training a vision encoder tailored for multi-type charts to address the deficiencies in chart types and limited scope of chart tasks in existing datasets.
Outcome: The proposed dataset includes 21 diverse chart types and tasks, including data retrieval and mathematical reasoning.
Tug-of-War between Knowledge: Exploring and Resolving Knowledge Conflicts in Retrieval-Augmented Language Models (2024.lrec-main)

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Challenge: Existing knowledge conflicts in RALMs can ensnare them in a tug-of-war between knowledge and evidence, limiting their practical applicability.
Approach: They propose a method called Conflict-Disentangle Contrastive Decoding (CD2) to better calibrate the model’s confidence.
Outcome: The proposed method can resolve knowledge conflicts in large language models with the help of conflict-disentangle contrast decoding (CD2) .
DRBO: Mitigating Short Board Effect via Dynamic Reward Balancing in Multi-reward LLM Optimization (2025.findings-emnlp)

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Challenge: a new framework to optimize large language models (LLMs) for evaluation metrics is needed to balance weaker metrics.
Approach: They propose a Dynamic Reward Balancing Optimization framework to mitigate the "short-board effect" they apply it to single-task and multi-type task scenarios .
Outcome: The proposed framework improves performance and balances performance across multiple metrics.
MCapsNet: Capsule Network for Text with Multi-Task Learning (D18-1)

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Challenge: Multi-task learning has been frustrated by the interference among tasks.
Approach: They propose a capsule-based multi-task learning architecture which is unified, simple and effective.
Outcome: The proposed model can cluster features for each task in the network, which helps reduce the interference among tasks.
A Comprehensive Survey of Scientific Large Language Models and Their Applications in Scientific Discovery (2024.emnlp-main)

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Challenge: Existing surveys on scientific LLMs focus on one or two fields or a single modality.
Approach: They survey 260 scientific LLMs and examine their architectures and pre-training techniques . they also discuss commonalities and differences between LLM architectures .
Outcome: The proposed model architectures and evaluation techniques are used to improve scientific discovery.
CogKTR: A Knowledge-Enhanced Text Representation Toolkit for Natural Language Understanding (2022.emnlp-demos)

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Challenge: Existing knowledge-enhanced methods are limited to knowledge-intensive tasks.
Approach: They propose a knowledge-enhanced text representation toolkit for natural language understanding . it combines knowledge acquisition, knowledge representation, knowledge injection and knowledge application .
Outcome: The proposed toolkit supports knowledge acquisition, knowledge representation, knowledge injection, and knowledge application.
A Troublemaker with Contagious Jailbreak Makes Chaos in Honest Towns (2025.acl-long)

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Challenge: Existing research focuses on single-agent attacks and shared memory attacks, but real-world scenarios often involve independent memory.
Approach: They propose a large-scale, multi-agent, multitopology attack evaluation framework that exploits the memory of an agent to make it more vulnerable to jailbreak attacks.
Outcome: The proposed framework improves on the troublemaker makes chaos in Honest Town task with 23.51%, 18.95%, and 52.93% improvements in line, star topologies, and 100-agent settings.
Improving Discriminative Capability of Reward Models in RLHF Using Contrastive Learning (2024.emnlp-main)

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Challenge: Current methods rely on ranking losses to teach reward model to assess preferences, but they are susceptible to noise and ambiguous data, often failing to deeply understand human intentions.
Approach: They propose a method that incorporates contrastive learning into the reward modeling process to enhance generalization and stabilize the reinforcement learning training process.
Outcome: The proposed method enhances generalization of the reward model, stabilizes the reinforcement learning training process, and improves the final alignment with human preferences.
How do Words Contribute to Sentence Semantics? Revisiting Sentence Embeddings with a Perturbation Method (2023.eacl-main)

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Challenge: Existing studies on sentence representation learning focus on human annotation, but they neglect the critical property that essential contents should contribute to sentence semantics more than non-essential contents when encoding a sentence.
Approach: They propose a perturbation method for unsupervised semantic analysis that uses a sentence compression metric to adapt sentence compression datasets for automatic evaluation.
Outcome: The proposed method can capture the main semantics of sentences better than several SOTA unsupervised sentence embedding models.
Cutting Off the Head Ends the Conflict: A Mechanism for Interpreting and Mitigating Knowledge Conflicts in Language Models (2024.findings-acl)

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Challenge: Existing methods to expand internal memory boundaries of language models by providing external context can often conflict, leading to knowledge conflicts.
Approach: They propose a method that prunes conflicting attention heads without updating model parameters.
Outcome: The proposed method can flexibly control eight LMs to use internal memory or external context without updating model parameters.
InfoMetIC: An Informative Metric for Reference-free Image Caption Evaluation (2023.acl-long)

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Challenge: Existing image captioning metrics provide a single score to measure caption qualities, which are less explainable and informative.
Approach: They propose an Informative Metric for Reference-free Image Caption evaluation to support this feedback . they propose to provide a text precision score, a vision recall score and an overall quality score .
Outcome: The proposed method improves on existing metrics on multiple benchmarks and compares coarse-grained scores with human judgements.
Semantic and Syntactic Enhanced Aspect Sentiment Triplet Extraction (2021.findings-acl)

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Challenge: Existing approaches to extract triplets from sentences neglect the mutual information between aspects and have the problem of error propagation.
Approach: They propose a Semantic and Syntactic Enhanced aspect Sentiment triplet Extraction model to exploit the syntactical and semantic relationships between the triplet elements and jointly extract them.
Outcome: The proposed model outperforms existing methods on four benchmark datasets and significantly outperformed existing approaches.
STYLE: Improving Domain Transferability of Asking Clarification Questions in Large Language Model Powered Conversational Agents (2024.findings-acl)

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Challenge: Existing methods for addressing ambiguities in conversational search systems are one-size-fits-all and struggle to achieve effective domain transferability.
Approach: They propose a method to provide search engines with strategies regarding when to ask clarification questions in a post-hoc manner.
Outcome: The proposed method improves search performance 10% on four unseen domains.
Title2Event: Benchmarking Open Event Extraction with a Large-scale Chinese Title Dataset (2022.emnlp-main)

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Challenge: Existing EE datasets define fixed event types and design specific schemas for each of them, failing to cover diverse events emerging from the online text.
Approach: They propose to use a sentence-level dataset to benchmark Open Event Extraction without restricting event types.
Outcome: The proposed dataset contains more than 42,000 news titles in 34 topics collected from Chinese web pages.
Flaming-hot Initiation with Regular Execution Sampling for Large Language Models (2025.findings-naacl)

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Challenge: Large language models (LLMs) have demonstrated remarkable capabilities across various domains since the release of ChatGPT . a key challenge in developing these general capabilities is efficiently sourcing diverse, high-quality data.
Approach: They introduce Flaming-hot Initiation with Regular Execution (FIRE) sampling to efficiently find good responses by promoting diversity.
Outcome: The proposed method enhances inference-time generation quality and benefits training in the alignment stage.
Focus on Your Question! Interpreting and Mitigating Toxic CoT Problems in Commonsense Reasoning (2024.acl-long)

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Challenge: Large language models exhibit high-level commonsense reasoning abilities, especially with enhancement methods like Chain-of-Thought (CoT).
Approach: They propose a chain-of-thought-like method to elicit models' potential abilities to generate rationales and answers that are based on attribution tracing and causal tracers to probe the internal working mechanism of the LLM.
Outcome: The proposed method eliminates Toxic CoT problems and improves the model’s overall commonsense reasoning performance by 5.5%.
Distributed LLM Serving on Consumer-Grade GPUs by Reconciling Computation and Communication (2025.findings-emnlp)

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Challenge: Large language models are reshaping internet services, and serving them is costly.
Approach: They propose an efficient distributed LLM serving system that splits prefill and decode requests into smaller chunks .
Outcome: The proposed system reduces TTFT, TPOT, and latency compared to the state-of-the-art system.
Tailoring Diagnostic Modeling to Individual Learners: Personalized Distractor Generation via MCTS-Guided Reasoning Reconstruction (2026.acl-long)

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Challenge: Current distractor generation methods produce shared distractors for all students, ignoring individual variations in reasoning, which limits their diagnostic effectiveness.
Approach: They propose a method which tailors distractors to each student’s specific cognitive flaws, inferred from their past question-answering (QA) history.
Outcome: The proposed framework outperforms existing methods in generating plausible distractors and adapts to group-level settings.
Decomposition for Enhancing Attention: Improving LLM-based Text-to-SQL through Workflow Paradigm (2024.findings-acl)

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Challenge: In-context learning of large-language models has achieved remarkable success in the field of natural language processing . however, the single-step chain-of-thought prompting approach faces challenges such as attention diffusion and inadequate performance in complex tasks like text-to-SQL.
Approach: They propose a workflow paradigm method to enhance the attention and problem-solving scope of large-language models through decomposition.
Outcome: The proposed method outperforms existing methods on three datasets and improves the upper limit of LLM-based approaches.
CRAB: Cross-environment Agent Benchmark for Multimodal Language Model Agents (2025.findings-acl)

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Challenge: Existing benchmarks for MLM agents in interactive environments are limited by their focus on a single environment, lack of detailed and generalized evaluation methods, and the complexity of constructing tasks and evaluators.
Approach: They propose a cross-environment agent benchmark framework that integrates graph-based evaluation and task generation methods.
Outcome: The proposed framework supports multiple devices and can be easily extended to any environment with a Python interface.
MEEL: Multi-Modal Event Evolution Learning (2024.findings-acl)

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Challenge: Existing models fail to grasp the principles governing event evolution in various scenarios.
Approach: They propose a multi-modal event evolution learning approach to grasp event evolution . they propose an instruction encapsulation process that transforms evolving graphs into instruction-tuning data .
Outcome: The proposed model grasps the event evolution mechanism yielding advanced MMER ability.
Towards Fine-Grained and Multi-Granular Contrastive Language-Speech Pre-training (2026.acl-long)

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Challenge: Existing models for fine-grained speaking styles are limited in terms of accuracy, coverage, and naturalness.
Approach: They propose a model that pre-trains with coarse captions and annotates with a pipeline that grounds captions in audio.
Outcome: The proposed model outperforms existing models with fine-grained style annotations . it integrates global and fine-granular supervision, enabling unified representations based on the proposed model .
SciAssess: Benchmarking LLM Proficiency in Scientific Literature Analysis (2025.findings-naacl)

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Challenge: Existing benchmarks fail to adequately evaluate the proficiency of Large Language Models (LLMs) Existing standards do not cover the skills needed to evaluate LLMs in scientific literature analysis.
Approach: They propose a benchmark to evaluate the proficiency of large language models in scientific literature analysis.
Outcome: SciAssess evaluates 11 LLMs on multiple tasks across scientific fields.
CausalCite: A Causal Formulation of Paper Citations (2024.findings-acl)

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Challenge: citation counts are often criticized for failing to accurately reflect the true impact of a paper.
Approach: They propose a method to measure the impact of a paper on follow-up papers by comparing similar papers by cosine similarity.
Outcome: The proposed method is based on a new causal inference method, TextMatch.
WorkForceAgent-R1: Incentivizing Reasoning Capability in LLM-based Web Agents via Reinforcement Learning (2026.findings-eacl)

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Challenge: Existing web agents relying on supervised fine-tuning struggle with generalization and robustness due to insufficient reasoning capabilities when handling the inherently dynamic nature of web interactions.
Approach: They propose a large language model-empowered web agent that trains using a rule-based reinforcement learning framework to enhance single-step reasoning and planning for business-oriented web navigation tasks.
Outcome: The proposed agent outperforms baseline LLM-based agents on the WorkArena benchmark by 10.26–16.59%.
LLM-REDIAL: A Large-Scale Dataset for Conversational Recommender Systems Created from User Behaviors with LLMs (2024.findings-acl)

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Challenge: Existing CRS datasets suffer from data inextensibility and semantic inconsistency .
Approach: They introduce the LLM-REDIAL dataset to facilitate the research in CRS by leveraging large language models to generate high-quality dialogues.
Outcome: The proposed dataset is the largest multi-domain CRS dataset which consists of 47.6k multi-turn dialogues with 482.6k utterances across 4 domains.
MULFE: A Multi-Level Benchmark for Free Text Model Editing (2024.acl-long)

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Challenge: Large Language Models (LLMs) have impressive capabilities in comprehending human language and vast parametric knowledge obtained from large corpora.
Approach: They propose a multi-level benchmark for free text model editing to bridge the gap . they categorize probe queries into three levels of generalization .
Outcome: The proposed method improves the generalization performance of large langugae models.
PaperMentor: A Human-Centered Multi-Agent Writing Tutor for AI Research Papers in Overleaf (2026.acl-demo)

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Challenge: Emerging AI-powered writing assistants focus on grammar fixes or simulating peer review with final scores, yet they fall short of providing concrete, actionable suggestions that help students improve their papers during drafting.
Approach: They propose a human-centered writing assistant system that delivers actionable suggestions as Overleaf-native inline comments while leaving the actual writing entirely to human authors.
Outcome: The proposed system outperforms a baseline with the skill library and provides actionable suggestions while leaving the actual writing to human authors.
LLMs are Biased Evaluators But Not Biased for Fact-Centric Retrieval Augmented Generation (2025.findings-acl)

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Challenge: Recent studies have shown that large language models (LLMs) exhibit significant biases in evaluation tasks, especially in preferentially rating and favoring self-generated content.
Approach: They propose to simulate two critical phases of retrieval-augmented generation (RAG) frameworks where keyword extraction and factual accuracy take precedence over stylistic elements.
Outcome: The proposed model emulates two critical phases of the retrieval-augmented generation framework.
CogKGE: A Knowledge Graph Embedding Toolkit and Benchmark for Representing Multi-source and Heterogeneous Knowledge (2022.acl-demo)

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Challenge: Existing methods focus on entity-centric knowledge, but CogKGE supports heterogeneous knowledge.
Approach: They propose a knowledge graph embedding toolkit to represent multi-source and heterogeneous knowledge.
Outcome: The proposed toolkit provides a unified programming framework for KGE tasks and a series of knowledge representations for downstream tasks.
Beyond Logits: Aligning Feature Dynamics for Effective Knowledge Distillation (2025.acl-long)

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Challenge: Knowledge distillation (KD) compresses large language models into lightweight versions called student models.
Approach: They propose to align the entire feature dynamics between teacher and student models by using two additional loss terms to achieve this.
Outcome: The proposed method matches the entire feature dynamics between teacher and student models rather than just the final states.
DocumentNet: Bridging the Data Gap in Document Pre-training (2023.emnlp-industry)

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Challenge: Document understanding tasks are a tedious task that requires extensive training and privacy constraints.
Approach: They propose a method to collect weakly labeled data from the web to benefit VDER training . the collected dataset does not depend on specific document types or entity sets .
Outcome: The proposed method does not depend on specific document types or entity sets, making it universally applicable to all VDER tasks.
M3CoT: A Novel Benchmark for Multi-Domain Multi-step Multi-modal Chain-of-Thought (2024.acl-long)

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Challenge: MCoT requires models to leverage knowledge from both textual and visual modalities for step-by-step reasoning.
Approach: They propose a benchmark to address the challenges of MCoT, and evaluate it using vision large language models.
Outcome: The proposed benchmark addresses the above challenges and shows that current models still struggle to reason in M3CoT.
Joint Semantic and Strategy Matching for Persuasive Dialogue (2023.findings-emnlp)

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Challenge: Persuasive dialogue models rely on utterance semantic matching and a key aspect has been ignored . compared with utterrance semantics, conversation strategies are high-level concepts, which can be informative and provide complementary information to achieve effective persuation.
Approach: They propose to model conversation semantics and strategies to match them using a BERT-like module and an auto-regressive predictor.
Outcome: The proposed model improves state-of-the-art by 5% on a small and 37% on 'large' datasets.
How Can Cross-lingual Knowledge Contribute Better to Fine-Grained Entity Typing? (2022.findings-acl)

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Challenge: Extensive experiments on multi-lingual datasets show that our method significantly outperforms multiple baselines and can robustly handle negative transfer.
Approach: They propose to transfer semantic knowledge from rich-resourced languages to low-resource languages by using multilingual transfer learning.
Outcome: The proposed model outperforms baselines and can handle negative transfer.
Improving Continual Relation Extraction through Prototypical Contrastive Learning (2022.coling-1)

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Challenge: Continual relation extraction (CRE) aims to extract relations towards the continuous and iterative arrival of new data, of which the major challenge is the catastrophic forgetting of old tasks.
Approach: They propose a Continual Relation Extraction framework with Contrastive Learning which is built with a classification network and a prototypical contrastive network to achieve incremental-class learning of CRE.
Outcome: The proposed framework outperforms the state-of-the-art methods on two public datasets and proves its effectiveness on improving performance.
ADEPT-SQL: A High-performance Text-to-SQL Application for Real-World Enterprise-Level Databases (2025.acl-demo)

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Challenge: et al., 2017) address domain-specific knowledge barriers, schemas complexity, and computational costs of large LLMs.
Approach: They propose a domain-adapted Text2SQL system that addresses critical deployment challenges in professional fields.
Outcome: The proposed system achieves 97% execution accuracy on real-world databases . it is faster than existing systems and has a higher performance than existing ones.
Backdooring Instruction-Tuned Large Language Models with Virtual Prompt Injection (2024.naacl-long)

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Challenge: Instruction-tuned Large Language Models (LLMs) can modulate responses based on human instructions, but they can be maliciously steered to impact society in subtle but persistent ways.
Approach: They propose a backdoor attack setting that allows an attacker to inject a virtual prompt into an LLM to steer it without any explicit injection at its input.
Outcome: The proposed method is able to poison the model's instruction tuning data and show that it is highly effective in steering the model.
EVIT: Event-Oriented Instruction Tuning for Event Reasoning (2024.findings-acl)

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Challenge: Large language models (LLMs) have made significant advances in event reasoning . however, smaller instruction-tuned models do not consistently demonstrate exceptional proficiency .
Approach: They propose an event-oriented instruction tuning technique to train a large language model . they propose a structure named event quadruple which contains the structure and semantics of events .
Outcome: The proposed model achieves competitive performances on event reasoning tasks.
Whispers that Shake Foundations: Analyzing and Mitigating False Premise Hallucinations in Large Language Models (2024.emnlp-main)

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Challenge: Large language models generate hallucinated text when confronted with false premise questions . authors propose a method to mitigate false premises hallucinosity .
Approach: They propose a method to constrain false premise attention heads during the model inference process.
Outcome: The proposed method improves performance by constraining false premise attention heads . it yields a notable increase of nearly 20% of model performance .
RSA-Bench: Benchmarking Audio Large Models in Real-World Acoustic Scenarios (2026.findings-acl)

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Challenge: Existing evaluations rely on synthetic Gaussian noise or simplistic single-source interference, failing to capture the intricate, multi-layered acoustic dynamics that characterize authentic physical environments.
Approach: They propose a robustness benchmark to stress-test Audio Large Models (ALLMs) using high-fidelity auditory scene simulations.
Outcome: The proposed model performs well on a wide range of tasks, including automatic speech recognition, speech translation, and audio-based reasoning.
LINKED: Eliciting, Filtering and Integrating Knowledge in Large Language Model for Commonsense Reasoning (2024.findings-emnlp)

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Challenge: Large language models (LLMs) often exhibit poor performance on knowledge-intensive tasks, such as commonsense reasoning.
Approach: They propose a method to elicit, filter and integrate knowledge in large language models (LINKED) they propose 'reward model' to filter out noisy knowledge and 'take marginal consistent reasoning module'
Outcome: The proposed method outperforms SOTA baselines on two commonsense reasoning tasks.
LongLeader: A Comprehensive Leaderboard for Large Language Models in Long-context Scenarios (2025.naacl-long)

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Challenge: LongLeader aims to assess different LLMs' long-context comprehension abilities . long-constext comprehension is a key bottleneck for many use cases .
Approach: They propose a leaderboard to assess different LLMs' long-context comprehension abilities . they offer open-source access to the benchmarks and maintain a dedicated website .
Outcome: The proposed model assesses different LLMs on selected benchmarks and provides open-source access to the benchmarks.
LiveFact: A Dynamic, Time-Aware Benchmark for LLM-Driven Fake News Detection (2026.acl-long)

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Challenge: Current evaluation frameworks are static and vulnerable to benchmark data contamination . current models are ineffective at assessing reasoning under temporal uncertainty .
Approach: They propose a live-based benchmark that simulates the real-world "fog of war" they propose evaluating models on their ability to reason with evolving, incomplete information .
Outcome: The proposed model outperforms proprietary state-of-the-art models in classification and evidence mode . it also provides a component to monitor BDC explicitly .
SumCSE: Summary as a transformation for Contrastive Learning (2024.findings-naacl)

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Challenge: Sentence embedding models are typically trained using contrastive learning (CL) using human annotations directly or by repurposing other annotated datasets.
Approach: They propose to use generative language models to generate CL data using annotated data.
Outcome: The proposed method outperforms the previous best unsupervised method by 1.8 points and SimCSE, a strong supervised baseline by 0.3 points on the semantic text similarity (STS) benchmark.
ARAIDA: Analogical Reasoning-Augmented Interactive Data Annotation (2024.acl-long)

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Challenge: Empirical studies demonstrate that Araida reduces human correction labor by 11.02% compared to vanilla interactive data annotation methods.
Approach: They propose an analogical reasoning-based approach that enhances automatic annotation accuracy in the interactive data annotation setting and reduces the need for human corrections.
Outcome: Empirical studies show that Araida reduces human correction labor by 11.02% compared to vanilla interactive data annotation methods.
Medical Graph RAG: Evidence-based Medical Large Language Model via Graph Retrieval-Augmented Generation (2025.acl-long)

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Challenge: GraphRAG framework is designed to enhance LLMs in generating evidence-based medical responses.
Approach: They propose a graph-based Retrieval-augmented generation framework to enhance LLMs in generating evidence-based medical responses.
Outcome: The proposed framework outperforms state-of-the-art models on 9 medical Q&A benchmarks, 2 health fact-checking datasets, and a long-form generation test set.
Predicting Clinical Trial Results by Implicit Evidence Integration (2020.emnlp-main)

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Challenge: Clinical trials are expensive and time-consuming, and inappropriately designed studies can be devastating in a pandemic.
Approach: They propose a model that takes a PICO-formatted clinical trial proposal and predicts the outcome from it.
Outcome: The proposed model outperforms baseline models on a benchmark dataset with 10.7% relative gain over BioBERT.
Trajectory2Task: Training Robust Tool-Calling Agents with Synthesized Yet Verifiable Data for Complex User Intents (2026.acl-long)

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Challenge: Tool-calling agents are increasingly deployed in real-world customer-facing workflows . but most studies on tool-callers focus on idealized settings with general, fixed, and well-specified tasks.
Approach: They propose a tool-calling agent-based data pipeline that converts trajectories into user-facing tasks with controlled intent adaptations.
Outcome: The proposed pipeline can be used to study tool use under three scenarios.
XY-Tokenizer: Mitigating the Semantic-Acoustic Conflict in Low-Bitrate Speech Codecs (2026.acl-long)

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Challenge: Existing speech codecs struggle to balance these objectives at low bitrates . XY-Tokenizer achieves stronger semantic alignment than representative semantic-distillation codec .
Approach: They propose a low-bitrate speech codec that aligns discrete speech representations with text while preserving fine-grained acoustic details for reconstruction.
Outcome: The proposed codec outperforms existing low-bitrate speech codecs in speech understanding and generation tasks.
Exploring Logically Dependent Multi-task Learning with Causal Inference (2020.emnlp-main)

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Challenge: Hierarchical multi-task learning models can utilize task dependencies by stacking encoders and outperform democratic ones.
Approach: They propose a model that utilizes the labels of all lower-level tasks and a Gumbel sampling model to deal with cascading errors.
Outcome: The proposed model outperforms democratic models on six out of seven subtasks and achieves state-of-the-art on the two English and one Chinese datasets.
A New Pipeline for Knowledge Graph Reasoning Enhanced by Large Language Models Without Fine-Tuning (2024.emnlp-main)

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Challenge: Conventional knowledge Graph Reasoning models learn the embeddings of KG components over the structure of a KG.
Approach: They propose a pipeline to integrate knowledge from LLMs into KGs without fine-tuning . they propose knowledge alignment, KG reasoning and entity reranking to enhance conventional models .
Outcome: The proposed pipeline can enhance the performance of conventional KGR models in incomplete and general situations.
Inducer-tuning: Connecting Prefix-tuning and Adapter-tuning (2022.emnlp-main)

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Challenge: Prefix-tuning is an essential paradigm of parameter-efficient transfer learning . fine-tuned models require separate copies of model parameters for each task .
Approach: They propose to understand and further develop prefix-tuning through the kernel lens . they propose a new variant of prefix tuning that shares the exact mechanism as prefix tun .
Outcome: The proposed method improves prefix-tuning performance by training only a small portion of parameters.
Praetor: A Fine-Grained Generative LLM Evaluator with Instance-Level Customizable Evaluation Criteria (2025.acl-long)

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Challenge: Existing evaluation methods are inadequate to evaluate large language models (LLMs).
Approach: They propose a fine-grained generative LLM evaluator with instance-level customazable evaluation criteria that can be used to evaluate large language models.
Outcome: The proposed model outperforms existing LLM evaluators and instruction-tuned LLMs on multiple benchmarks and sets new SOTA results.
A Good Prompt Is Worth Millions of Parameters: Low-resource Prompt-based Learning for Vision-Language Models (2022.acl-long)

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Challenge: Recent few-shot learning models such as GPT3 are expensive and slow to deploy for real-world applications.
Approach: They propose a prompt-based low-resource learning method for VL tasks with a few examples . they pre-train a sequence-to-sequence transformer model with prefix and masked language modeling .
Outcome: The proposed method outperforms Frozen on vision-language tasks with prompt-based learning by 18.2% point.
TabPrompt: Graph-based Pre-training and Prompting for Few-shot Table Understanding (2023.findings-emnlp)

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Challenge: Existing methods of Table Understanding (TU) focus on the textual content within the tabular data, disregarding the topological information of the table.
Approach: They propose a framework that uses tabs to understand tabular data without ignoring the topological information of the table.
Outcome: The proposed framework outperforms baselines in few-shot table understanding tasks.
From Curated Data to Scalable Models: Continual Pre-training of Dense and MoE Large Language Models for Tibetan (2026.acl-long)

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Challenge: Large language models have achieved remarkable success across a wide range of tasks, yet their performance remains heavily biased toward high-resource languages.
Approach: They propose a pipeline for advancing Tibetan language modeling through multilingual continual pre-training with Tibetan, Chinese, and English.
Outcome: The proposed model outperforms open-source and Tibetan-focused models on diverse tasks.
Language Resource Efficient Learning for Captioning (2021.findings-emnlp)

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Challenge: XE loss and SC loss are both considered to be performance degradations for captioning tasks.
Approach: They propose to generalize the single pairwise comparison in SC loss and use multiple generalized pairwise compares to reduce noise in baseline.
Outcome: The proposed method outperforms state-of-the-art models on a video caption dataset using only half of the language resources.
MoDULA: Mixture of Domain-Specific and Universal LoRA for Multi-Task Learning (2024.emnlp-main)

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Challenge: Recent advances in open-source Large Language Models (LLMs) have achieved notable successes in natural language processing.
Approach: They propose a Parameter Efficient Fine-Tuning paradigm for improved fine-tuning and parameter efficiency in multi-task learning.
Outcome: The proposed model outperforms existing methods on multi-task learning while reducing training costs by over 80% without losing general capability.
EvoHyper: Evolving Hypergraph Topologies for Unified Collaboration in Multi-Agent Communication (2026.findings-acl)

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Challenge: Existing methods for multi-agent collaboration use a fixed communication graph and manage collaboration structure and shared memory in separate modules.
Approach: They propose a framework that uses an evolving hypergraph topology for multi-agent collaboration.
Outcome: The proposed framework achieves 3.2% to 7.8% accuracy gains over state-of-the-art methods and efficient, reducing token consumption by up to 23.5%.
SafeConv: Explaining and Correcting Conversational Unsafe Behavior (2023.acl-long)

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Challenge: Existing datasets do not provide enough annotation to explain unsafe behavior . current chatbots generate toxic and offensive responses, which can be dangerous .
Approach: They construct a dataset called SafeConv that provides comprehensive annotations for chatbots . they compare safe alternatives to rewrite unsafe responses .
Outcome: The proposed model can explain unsafe behavior and detoxify chatbots, the authors show . the proposed model is able to detect unsafe utterances, extract unsafe spans, and convert unsafe responses to safe versions.
Is the Attention Matrix Really the Key to Self-Attention in Multivariate Long-Term Time Series Forecasting? (2026.acl-long)

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Challenge: In multivariate long-term time series forecasting, it is widely believed that the effectiveness of self-attention arises from its attention matrix.
Approach: They propose a multi-branch MLP that isolates the ‘multi-brain mapping with element-wise operation’ structure from the Transformer and shows that it achieves competitive performance.
Outcome: The proposed model outperforms three classic and three latest Transformer models and shows that it achieves competitive performance.
CLAMBER: A Benchmark of Identifying and Clarifying Ambiguous Information Needs in Large Language Models (2024.acl-long)

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Challenge: Large language models are used to meet user information needs, but their effectiveness in dealing with user queries that contain various types of ambiguity remains unknown.
Approach: They propose a benchmark for evaluating large language models using a well-organized taxonomy.
Outcome: The proposed model is based on a well-organized taxonomy and compares it with other models.
T2A-Feedback: Improving Basic Capabilities of Text-to-Audio Generation via Fine-grained AI Feedback (2025.acl-long)

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Challenge: Text-to-audio (T2A) models still struggle to satisfy human preferences for prompt-following and acoustic quality when generating complex multi-event audio.
Approach: They propose to use AI feedback learning to enhance basic capabilities of text-to-audio models . they use a large audio preference dataset to evaluate the model's capabilities .
Outcome: The proposed model improves in simple and complex scenarios with AI feedback learning.
Dynamic Model-Bank Test-Time Adaptation for Automatic Speech Recognition (2025.emnlp-main)

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Challenge: Existing ASR TTA methods struggle with instability under continual and long-term distribution shifts.
Approach: They propose a continuous adaptive model-bank framework that adapts to domain shifts in ASR test-time scenarios.
Outcome: Experiments on diverse, continuously shifting ASR benchmarks show that DMSUTA outperforms existing continual TTA baselines.
Rethinking Multiple-Choice Questions for RLVR: Unlocking Potential via Distractor Design (2026.findings-acl)

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Challenge: Existing approaches to RLVR use multiple-choice questions as verifiable rewards . however, not all tasks provide reliable verification .
Approach: They propose a framework that actively constructs high-quality distractors to block elimination shortcuts and promote deep reasoning.
Outcome: The proposed method significantly improves reasoning capabilities of Large Language Models.
To What Extent Do Natural Language Understanding Datasets Correlate to Logical Reasoning? A Method for Diagnosing Logical Reasoning. (2022.coling-1)

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Challenge: Reasoning and knowledge-related skills are considered as fundamental skills for natural language understanding (NLU) tasks.
Approach: They propose a method to diagnose correlations between an NLU dataset and a specific skill.
Outcome: The proposed method is able to diagnose correlations between dataset and logical reasoning skill on 8 MRC and 3 NLI datasets.
Chain-of-Thought Tuning: Masked Language Models can also Think Step By Step in Natural Language Understanding (2023.emnlp-main)

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Challenge: Chain-of-Thought (CoT) is a technique that guides large language models to decompose complex tasks into multi-step reasoning processes.
Approach: They propose a two-step reasoning framework based on prompt tuning to implement step-by-step thinking for MLMs on NLU tasks.
Outcome: The proposed framework outperforms baselines and achieves state-of-the-art performance on two NLU tasks.
MultiConIR: Towards Multi-Condition Information Retrieval (2025.findings-emnlp)

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Challenge: MultiConIR is a benchmark designed to evaluate retrieval and reranking models under nuanced multi-condition query scenarios.
Approach: They propose a benchmark to evaluate retrieval and reranking models under nuanced multi-condition query scenarios.
Outcome: The proposed benchmark evaluates retrieval and reranking models under nuanced multi-condition query scenarios across five domains.
Harder Task Needs More Experts: Dynamic Routing in MoE Models (2024.acl-long)

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Challenge: Unlike existing MoE approaches that rely on fixed TopK Routing, our dynamic expert selection framework dynamically allocates experts based on the confidence level in expert selection for each input.
Approach: They propose a dynamic expert selection framework that dynamically allocates experts based on the confidence level in expert selection for each input.
Outcome: The proposed method achieves an average improvement of 0.7% with less than 90% activated parameters and outperforms dense models in QA and machine translation tasks.
Wrong-of-Thought: An Integrated Reasoning Framework with Multi-Perspective Verification and Wrong Information (2024.findings-emnlp)

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Challenge: Chain-of-Thought (CoT) is a key technique for enhancing the performance of Large Language Models.
Approach: They propose a framework that optimizes outputs by utilizing wrong information and multi-perspective verification.
Outcome: The proposed framework surpasses all baselines on 8 datasets and 5 LLMs.
How Do LLMs Acquire New Knowledge? A Knowledge Circuits Perspective on Continual Pre-Training (2025.findings-acl)

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Challenge: Large Language Models (LLMs) have exceptional capabilities in knowledge-intensive tasks . however, they struggle with knowledge updates due to dynamic nature of world knowledge .
Approach: They propose to identify computational subgraphs that facilitate knowledge storage and processing . they also identify a phase shift from formation to optimization in LLMs .
Outcome: The proposed model can capture factual knowledge from pre-training corpus and encapsulate it as extensive parametric knowledge.
Neural Graph Matching Networks for Chinese Short Text Matching (2020.acl-main)

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Challenge: Chinese word segmentation can be erroneous, ambiguous or inconsistent, causing performance problems.
Approach: They propose a sentence matching framework that uses paired word lattices as input instead of a character sequence.
Outcome: The proposed framework outperforms the state-of-the-art short text matching models on two Chinese datasets.
De-Confounded Variational Encoder-Decoder for Logical Table-to-Text Generation (2021.acl-long)

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Challenge: Logical table-to-text generation is challenging where deep learning models capture surface-level spurious correlations rather than the causal relationships between the table x and the sentence y.
Approach: They propose to use variational inference to estimate the confounders in the latent space and cooperate with the causal intervention based on Pearl’s do-calculus to alleviate the spurious correlations.
Outcome: The proposed model outperforms baselines and achieves new state-of-the-art performance on two logical table-to-text datasets in terms of logical fidelity.
Detection, Diagnosis, and Explanation: A Benchmark for Chinese Medial Hallucination Evaluation (2024.lrec-main)

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Challenge: Large Language Models (LLMs) have made significant progress in recent years, but their practical use is hindered by their tendency to generate hallucinations.
Approach: They propose to use ICD-10 and MeSH to evaluate LLMs' ability to detect medical hallucinations and make accurate diagnoses in noisy environments.
Outcome: The proposed benchmark can be used to evaluate LLMs’ ability to detect medical hallucinations, make accurate diagnoses in noisy conditions, and provide plausible explanations.
KEEP CHATTING! An Attractive Dataset for Continuous Conversation Agents (2024.findings-acl)

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Challenge: Existing works about persona dialogue such as PersonaChat have greatly facilitated the chatbot with configurable and persistent personalities.
Approach: They propose to collect a dataset called ContinuousChat and rewrite it in style-specific ways to increase users' willingness to continue chatting.
Outcome: The proposed model increases users' willingness to continue talking to the chatbot by increasing their personas to detailed-personas through experiences, daily life, future plans, or interesting stories.
Text2Event: Controllable Sequence-to-Structure Generation for End-to-end Event Extraction (2021.acl-long)

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Challenge: Existing methods to extract event records from text decompose complex structure prediction task into multiple subtasks.
Approach: They propose a sequence-to-structure generation paradigm that can extract events from text . they propose unified event extraction, constrained decoding algorithm and curriculum learning algorithm .
Outcome: The proposed method can achieve competitive performance using record-level annotations in both supervised learning and transfer learning settings.
ReStyle-TTS: Relative and Continuous Style Control for Zero-Shot Speech Synthesis (2026.findings-acl)

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Challenge: Recent controllable zero-shot text-to-speech systems can synthesize speech for unseen speakers from a short reference audio clip, but they also inherit the speaking style present in the reference.
Approach: They propose a framework that enables continuous and reference-relative style control in zero-shot text-to-speech systems by combining style-specific LoRAs with Orthogonal LoRA Fusion.
Outcome: The proposed framework reduces the model's dependence on reference style while preserving text fidelity while maintaining intelligibility and speaker timbre.
YouMakeup: A Large-Scale Domain-Specific Multimodal Dataset for Fine-Grained Semantic Comprehension (D19-1)

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Challenge: Multimodal semantic comprehension has attracted increasing research interest recently such as visual question answering and caption generation.
Approach: They propose to use a large-scale multimodal instructional video dataset to support fine-grained comprehension research in specific domain.
Outcome: The proposed dataset contains 2,800 videos from YouTube, spanning more than 420 hours in total.
Can We Trust the Performance Evaluation of Uncertainty Estimation Methods in Text Summarization? (2024.emnlp-main)

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Challenge: Text summarization is a key natural language generation task, but the high cost of inaccurate summaries raises concerns about the reliability of uncertainty estimation on text summarisation (UE-TS) evaluation methods.
Approach: They propose a UE-TS benchmark that evaluates the uncertainty estimation capabilities of two large language models and one pre-trained language model on three datasets.
Outcome: The proposed benchmark evaluates the uncertainty estimation capabilities of two large language models and one pre-trained language model on three datasets, with human-annotation analysis incorporated where applicable.
Collaborative Policy Learning for Open Knowledge Graph Reasoning (D19-1)

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Challenge: Existing models of knowledge graph reasoning suffer from limited performance when working on sparse and incomplete graphs due to the lack of evidential paths that can reach target entities.
Approach: They propose a framework to train two collaborative agents to reason for missing facts over a graph augmented by a text corpus.
Outcome: Experiments on two public datasets show the proposed approach is effective on a knowledge graph reasoning task.
Revisit Self-Debugging with Self-Generated Tests for Code Generation (2025.acl-long)

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Challenge: Large language models (LLMs) have made significant advances in code generation, but they still face challenges when tackling complex programming tasks beyond their basic capabilities.
Approach: They propose to integrate self-generated tests into the code generation process . they propose to use post-execution and in-exection self-debugging to mitigate test bias .
Outcome: The proposed method improves the performance of large language models in code generation tasks by leveraging execution feedback from tests.
Enhancing Transformation from Natural Language to Signal Temporal Logic Using LLMs with Diverse External Knowledge (2025.findings-acl)

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Challenge: Temporal Logic (STL) is a formal specification tool for cyber-physical systems . but it is difficult to transform ambiguous and complex data into STL, a paper argues .
Approach: They propose a NL-STL dataset with 16,000 samples enriched with diverse patterns . they propose KGST framework to transform natural language into STL using a generate-then-refine process .
Outcome: The proposed dataset outperforms baseline models in diversity and accuracy . the proposed dataset contains 16,000 samples enriched with diverse patterns .
A Semantically Consistent and Syntactically Variational Encoder-Decoder Framework for Paraphrase Generation (2020.coling-main)

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Challenge: Paraphrase generation is a longstanding problem in natural language processing (NLP) Neural network-based methods have shown great progress on paraphrase generation.
Approach: They propose a framework that integrates variational inference on a target-related latent variable to introduce the diversity.
Outcome: The proposed framework outperforms baseline models on the metrics based on n-gram matching and semantic similarity, and it can generate multiple different paraphrases by assembling different syntactic variables.
PedagogyBench: A Cognitive-Driven Benchmark for Multimodal Instructional Video Understanding (2026.findings-acl)

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Challenge: Existing video understanding benchmarks do not adequately capture the pedagogical logic embedded in instructional videos.
Approach: They propose a pedagogy-driven segmentation strategy and a dual-stream semantic injection pipeline that combines machine pre-annotation with expert refinement.
Outcome: The proposed model performs well on discriminative tasks but degrades on higher-order pedagogical diagnosis, relying on parametric memory rather than grounded visual perception.
MLeVLM: Improve Multi-level Progressive Capabilities based on Multimodal Large Language Model for Medical Visual Question Answering (2024.findings-acl)

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Challenge: Existing MVQA models ignore multi-level progressive capabilities due to unspecific data and plain architecture.
Approach: They propose a multi-level visual language model for medical visual question answering (MVQA) which covers multi- level questions and answers as well as reasoning processes from visual clues to semantic cognition.
Outcome: The proposed model outperforms existing medical multimodal large language models on a multi-level instruction dataset and a feature alignment module.
Multimodal Language Models See Better When They Look Shallower (2025.emnlp-main)

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Challenge: Existing studies show that multimodal large language models extract visual features from the final layers of a pretrained Vision Transformer.
Approach: They propose a feature fusion method that strategically incorporates shallower layers . they propose MLLMs that extract visual features from the final layers of a pretrained Vision Transformer .
Outcome: The proposed method outperforms deep layers on fine-grained visual tasks . it is the first comprehensive study of visual layer selection for MLLMs .
Persuading across Diverse Domains: a Dataset and Persuasion Large Language Model (2024.acl-long)

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Challenge: Persuasive dialogue requires multi-turn following and planning abilities to achieve the goal of persuating users.
Approach: They propose a general method to learn a persuasive model based on LLMs through intent-to-strategy reasoning, which summarizes the intent of user’s utterance and reasons next strategy to respond.
Outcome: The proposed method outperforms baselines on automatic evaluation metric Win-Rate and human evaluation on two datasets.
Can You Tell Me How to Get Past Sesame Street? Sentence-Level Pretraining Beyond Language Modeling (P19-1)

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Challenge: State-of-the-art models in natural language processing (NLP) often incorporate sentence encoder functions which generate a sequence of vectors intended to represent the in-context meaning of each word in an input text.
Approach: They conduct the first large-scale systematic study of candidate pretraining tasks, comparing 19 different tasks as alternatives and complements to language modeling.
Outcome: The proposed model can be used to train sentences on language modeling tasks.
Act as you think: Reinforcing Consistent Reasoning in Medical Visual Question Answering (2026.acl-long)

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Challenge: Recent advances have improved the accuracy of medical visual question answering (Med-VQA) however, the high stakes nature of the medical domain has precipitated a shift towards interpretability and transparency of reasoning processes.
Approach: They propose a reinforcement learning from verifiable rewards framework that rewards internal consistency and logical coherence.
Outcome: The proposed framework rewards internal consistency and logical coherence, and is highly versatile, the authors show.
OS-Genesis: Automating GUI Agent Trajectory Construction via Reverse Task Synthesis (2025.acl-long)

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Challenge: Graphical User Interface (GUI) agents powered by Vision-Language Models (VLMs) have demonstrated human-like computer control capability.
Approach: They propose a GUI data synthesis pipeline that reverse engineers GUI trajectory construction process by executing pre-defined tasks.
Outcome: The proposed GUI data synthesis pipeline overcomes the bottlenecks of previous methods that rely on pre-defined tasks and limited data diversity.
TransFace: Unit-Based Audio-Visual Speech Synthesizer for Talking Head Translation (2024.findings-acl)

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Challenge: Existing methods for talking head translation rely on cascading, resulting in delays and cascadic errors.
Approach: They propose a model for talking head translation, TransFace, which can translate audio-visual speech into audio-visual speech in other languages.
Outcome: The proposed model can translate audio-visual speech into audio-visual speech in other languages.
Rapid Diffusion: Building Domain-Specific Text-to-Image Synthesizers with Fast Inference Speed (2023.acl-industry)

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Challenge: Text-to-Image Synthesis (TIS) aims to generate images based on textual inputs . but, current diffusion-based models lack entity knowledge and low inference speed .
Approach: They propose a framework for training and deploying latent diffusion models with rich entity knowledge injected and optimized networks.
Outcome: The proposed framework improves image quality and inference speed and can be used in industrial applications.
Unlocking the Future: Exploring Look-Ahead Planning Mechanistic Interpretability in Large Language Models (2024.emnlp-main)

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Challenge: Recent studies have shown that large language models may possess preliminary planning capabilities.
Approach: They examine the look-ahead planning mechanism in large language models from the perspectives of information flow and internal representations.
Outcome: The proposed model can decode the decision from the output of MHSA in the middle layers at the last token.
Multi-Task Label Embedding for Text Classification (D18-1)

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Challenge: Existing work treats labels of each task as independent and meaningless one-hot vectors, which cause a loss of potential label information.
Approach: They propose to combine multi-task learning with semantic vectors to convert labels into vectors . their results are based on extensive experiments on five benchmark datasets based in chinese .
Outcome: The proposed model can improve performance on five benchmark datasets on text classification tasks.
MultiChallenge: A Realistic Multi-Turn Conversation Evaluation Benchmark Challenging to Frontier LLMs (2025.findings-acl)

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Challenge: Existing evaluation frameworks for large language models have limited coverage for multi-turn conversations . multi-turned conversations require accurate instruction following, context allocation, and in-context reasoning at the same time.
Approach: They propose a benchmark to evaluate large language models' ability to conduct multi-turn conversations with humans.
Outcome: The proposed benchmarks achieve near perfect scores on existing benchmarks but only a 41.4% accuracy on the frontier models.
CycleOIE: A Low-Resource Training Framework For Open Information Extraction (2025.coling-main)

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Challenge: Open Information Extraction (OpenIE) models rely heavily on large amounts of annotated data.
Approach: They propose a training framework that maximizes data efficiency through a cycle-consistency mechanism.
Outcome: The proposed approach improves the quality of training data by curating low-quality datasets annotated by a large language model.
AgentReview: Exploring Peer Review Dynamics with LLM Agents (2024.emnlp-main)

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Challenge: Existing methods of peer review analysis do not address multivariate nature of the process, account for latent variables, and are constrained by privacy concerns due to the sensitive nature of data.
Approach: They propose a large language model based peer review simulation framework which effectively disentangles the impacts of multiple latent factors and addresses the privacy issue.
Outcome: The proposed framework disentangles the impacts of multiple latent factors and addresses privacy concerns.
Empowering parameter-efficient transfer learning by recognizing the kernel structure in self-attention (2022.findings-naacl)

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Challenge: Existing methods to fine-tune pre-trained language models are parameter efficient . fine- tuning the models requires multiple copies of the parameters, which is inefficient.
Approach: They propose to use kernel-based adapters to tune only a few parameters while freezing the rest of the parameters.
Outcome: The proposed methods achieve or improve strong performance over a diverse set of natural language generation and understanding tasks.
Diagnosing the First-Order Logical Reasoning Ability Through LogicNLI (2021.emnlp-main)

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Challenge: Existing studies have focused on diagnosing LMs' reasoning abilities in natural language understanding tasks.
Approach: They propose a diagnostic method for first-order logic reasoning with a proposed benchmark, LogicNLI.
Outcome: The proposed method disentangles the target FOL reasoning from commonsense inference and can be used to diagnose LMs from four perspectives: accuracy, robustness, generalization, and interpretability.
ReasonRec: A Reasoning-Augmented Multimodal Agent for Unified Recommendation (2026.findings-acl)

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Challenge: Recent advances in multimodal recommenders lack explicit reasoning and self-awareness of uncertainty.
Approach: They propose a reasoning-augmented multimodal agent structured around a three-stage explicit reasoning pipeline.
Outcome: The proposed agent improves ranking metrics and performance on four standard recommendation tasks across five real-world datasets.
DynamicNER: A Dynamic, Multilingual, and Fine-Grained Dataset for LLM-based Named Entity Recognition (2025.emnlp-main)

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Challenge: Existing datasets designed for Named Entity Recognition methods are inadequate for LLMs.
Approach: They propose a dataset that is multilingual and multi-granular and enables LLMs to be applied to Named Entity Recognition methods.
Outcome: The proposed dataset is multilingual and multi-granular, covering 8 languages and 155 entity types, with corpora spanning a diverse range of domains.
WebQuality: A Large-scale Multi-modal Web Page Quality Assessment Dataset with Multiple Scoring Dimensions (2025.naacl-long)

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Challenge: Existing studies on web page quality assessment neglect the aspect of web page content.
Approach: They propose a Chinese dataset for web page quality assessment . the dataset includes over 65,000 detailed an-notations spanning four sub-dimensions .
Outcome: The proposed dataset includes over 65,000 detailed an-notations spanning four sub-dimensions and incorporates elements such as HTML+CSS, text, and visual screenshot.
Don’t Be Misled by Style: A Style-Adaptive Reranker for Capturing Effective Knowledge in Retrieval-Augmented Generation (2026.acl-long)

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Challenge: Existing rerankers are mainly trained on well-edited texts, but stylistic features can be misled by reranked models.
Approach: They propose a style-augmented multi-task framework that prioritizes effective knowledge over stylistic perturbations by using an LLM to derive passage-level supervision on whether a passage helps or harms answer correctness.
Outcome: Extensive experiments show that SARK improves generation performance across multiple LLMs under mixed-style conditions.
Rethinking Table Pruning in TableQA: From Sequential Revisions to Gold Trajectory-Supervised Parallel Search (2026.acl-long)

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Challenge: Existing pruning methods rely on sequential revisions and unreliable critique signals . Existing methods fail to detect the loss of answer-critical data .
Approach: They propose a table pruning framework which transforms table pruning to gold trajectory-supervised parallel search.
Outcome: The proposed framework outperforms the strongest baseline pruning framework by 3.2% on various tabular reasoning tasks.
HearSay Benchmark: Do Audio LLMs Leak What They Hear? (2026.findings-acl)

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Challenge: Recent advances in audio large language models have led to their potential privacy implications unexplored.
Approach: They propose a benchmark to examine whether ALLMs leak user privacy through acoustic voiceprints.
Outcome: The proposed benchmark is constructed from over 22,000 real-world audio clips.
Zero-Shot Cross-Lingual Document-Level Event Causality Identification with Heterogeneous Graph Contrastive Transfer Learning (2024.lrec-main)

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Challenge: Existing studies focus on sentence-level ECI with high-resource languages, leaving document-level DECI with low-resourced languages under-explored.
Approach: They propose a Heterogeneous Graph Interaction Model with Multi-granularity Contrastive Transfer Learning for zero-shot cross-lingual ECI.
Outcome: The proposed model outperforms the state-of-the-art model on monolingual and multilingual scenarios by 9.4% and 8.2% of average F1 score.
SOP-Maze: Evaluating Large Language Models on Complicated Business Standard Operating Procedures (2026.findings-acl)

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Challenge: Large language models (LLMs) are widely deployed as domain-specific agents, but evaluation of their capabilities in such contexts has not been fully explored.
Approach: They propose a benchmark to evaluate LLMs' ability to follow instructions and make decisions in real-world scenarios.
Outcome: The proposed benchmark is constructed from real-world business data and adapted into 23 complex SOP scenarios.
Prototypical Reward Network for Data-Efficient Model Alignment (2024.acl-long)

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Challenge: Reinforcement Learning from Human Feedback (RLHF) is a reward model that fine-tunes Large Language Models (LLMs) by utilizing Prototypical Networks.
Approach: They propose a framework utilizing Prototypical Networks to enhance reward models under limited human feedback, enabling more stable and reliable structural learning from fewer samples.
Outcome: The proposed framework improves reward models under limited human feedback, surpassing traditional methods, especially in data-limited scenarios.
Sketching as a Tool for Understanding and Accelerating Self-attention for Long Sequences (2022.naacl-main)

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Challenge: Existing models for long sequences are not efficient due to the quadratic space and time complexity of the self-attention modules.
Approach: They propose to reduce the quadratic complexity to linear (modulo logarithmic factors) by low-dimensional projection and row selection.
Outcome: The proposed methods outperform transformer-based models with smaller time/space footprint on the Long Range Arena benchmark.
Enhancing Code Generation Performance of Smaller Models by Distilling the Reasoning Ability of LLMs (2024.lrec-main)

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Challenge: Large Language Models (LLMs) have made significant advances in code generation through the ‘Chain-of-Thought’ prompting technique.
Approach: They propose a framework which aims to transfer LLMs’ reasoning capabilities to smaller models through distillation.
Outcome: The proposed framework improves the smaller model's code generation performance by over 130% on the APPS benchmark.
CogIE: An Information Extraction Toolkit for Bridging Texts and CogNet (2021.acl-demo)

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Challenge: CogNet is a knowledge base that integrates three types of knowledge: linguistic knowledge, world knowledge and commonsense knowledge.
Approach: They propose an information extraction toolkit called CogIE that is a bridge connecting raw texts and CogNet.
Outcome: The proposed toolkit can ground raw texts to CogNet and leverage different types of knowledge to enrich extracted results.
Do Vision-Language Models Have Internal World Models? Towards an Atomic Evaluation (2025.findings-acl)

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Challenge: Recent studies have evaluated and shown limitations in specific capabilities such as visual understanding, but a systematic evaluation of VLMs’ fundamental WM abilities remains absent.
Approach: They propose a framework that assesses perception and prediction to provide an atomic evaluation of VLMs as WMs.
Outcome: The proposed framework assesses perception and prediction abilities on 15 latest VLMs and compares them to human-level models.
Tiny Scales, Great Challenges: The Limits of Multimodal LLMs in Scale Recognition (2026.acl-long)

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Challenge: Existing benchmarks focus on a single type of quantity or a specific format, lacking a comprehensive evaluation of scale recognition capabilities.
Approach: They propose a visual scale recognition benchmark built using images from COCO, Open Images, and Flickr to evaluate scale recognition capabilities of multimodal large language models.
Outcome: The proposed model achieves 42.60% accuracy, lower than the 97.40% of humans.
Analyzing the Role of Semantic Representations in the Era of Large Language Models (2024.naacl-long)

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Challenge: Existing studies show the benefits of semantic representations in NLP tasks . Existing work using AMR is concerned with trainable models .
Approach: They propose an AMR-driven chain-of-thought prompting method that uses AMR . they propose to use it to predict which input examples AMR may help or hurt on .
Outcome: The proposed method hurts performance more than it helps on five different tasks.
Multi-granularity Textual Adversarial Attack with Behavior Cloning (2021.emnlp-main)

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Challenge: Existing adversarial attack models are vulnerable to adversarials crafted by human-imperceptible perturbations.
Approach: They propose a multi-granularity adversarial attack model that generates high-quality adversarials with fewer queries to victim models.
Outcome: The proposed model generates high-quality adversarial samples with fewer queries to victim models compared to baseline models . the proposed model also reduces query times for black-box models that only output labels without confidence scores .
Parrot: A Training Pipeline Enhances Both Program CoT and Natural Language CoT for Reasoning (2025.emnlp-main)

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Challenge: Existing work focuses on enabling models to generate natural language chain-of-thought rationales or leverage executable and verifiable code, such as Python.
Approach: They propose a novel training pipeline that integrates sequential P-CoT and N-Co T generation and a subtask hybrid training strategy to facilitate natural language transferability.
Outcome: The proposed training pipeline improves both N-CoT and P-Co T performance over the RL baseline.
Salience Allocation as Guidance for Abstractive Summarization (2022.emnlp-main)

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Challenge: Abstractive summarization models implicitly learn to capture the salient information from scratch.
Approach: They propose a method that uses salience expectation to guide abstractive summarization by averaging salient content to a fixed threshold.
Outcome: The proposed method can be easily adapted to documents with various abstractiveness and achieves high performance.
H-MAS: Hierarchical Multi-Agent Scheduling for Multi-Tenant LLM Serving (2026.findings-acl)

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Challenge: Multi-tenant Model-as-a-Service (MaaS) workloads exhibit non-stationarity across multiple time scales . existing request schedulers often rely on a fixed policy that remains unchanged at runtime .
Approach: They propose a hierarchical multi-agent scheduler that operates in a layered closed loop . they propose to maintain 1.2–3.0 higher Goodput than SGLang and vLLM .
Outcome: Experiments show that H-MAS achieves 1.2–3.0 higher Goodput than SGLang and vLLM . it maintains more stable QoS under diverse request lengths and heterogeneous SLO targets .
Self-Improvement Programming for Temporal Knowledge Graph Question Answering (2024.lrec-main)

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Challenge: Existing methods implicitly model time constraints by learning time-aware embeddings of questions and candidate answers, which is far from understanding the question comprehensively.
Approach: They propose a temporal-based temporal programming method that leverages the in-context learning ability of Large Language Models to understand combinatory time constraints in questions.
Outcome: The proposed method outperforms existing methods on multiTQ and CronQuestions datasets and is highly efficient on multi-level questions.
FashionKLIP: Enhancing E-Commerce Image-Text Retrieval with Fashion Multi-Modal Conceptual Knowledge Graph (2023.acl-industry)

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Challenge: Recent advances in visual-language pre-trained (VLP) models have greatly improved cross-modal retrieval performance . however, the fine-grained interactions between objects from different modalities are far from well-established . e-commerce domain lacks sufficient training data and fine-granular cross-modulal knowledge .
Approach: They propose a visual-language pre-trained (VLP) image-text retrieval model that integrates cross-modal knowledge into the model to improve performance.
Outcome: The proposed model improves performance on e-commerce image-text retrieval task by a large margin.
MTR: A Dataset Fusing Inductive, Deductive, and Defeasible Reasoning (2023.findings-acl)

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Challenge: Existing datasets for logical reasoning focus on monotonic logic and a single form of reasoning.
Approach: They propose to use a dataset to study the human-like reasoning in machine reading comprehension.
Outcome: The proposed dataset shows that state-of-the-art neural models perform noticeably worse than expected.
Large Language Models Can Be Contextual Privacy Protection Learners (2024.emnlp-main)

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Challenge: Large Language Models (LLMs) have demonstrated remarkable linguistic comprehension and generation capability, but when applied to specialized industries, they face challenges such as hallucination, insufficient domain knowledge, and failing to incorporate the latest domain knowledge.
Approach: They propose a paradigm for fine-tuning LLMs that effectively injects domain-specific knowledge while safeguarding inference-time data privacy.
Outcome: The proposed model protects private data while enhancing the model's knowledge.
RAG-RewardBench: Benchmarking Reward Models in Retrieval Augmented Generation for Preference Alignment (2025.findings-acl)

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Challenge: Existing retrieval augmented language models often overlook effective alignment with human preferences.
Approach: They propose a benchmark to evaluate RMs in retrieval augmented language models . they incorporate 18 RAG subsets, six retrievers, and 24 RALMs to increase diversity .
Outcome: The proposed benchmark combines 18 RAG subsets, six retrievers, and 24 RALMs to increase diversity of data sources.
Unsupervised Morphological Paradigm Completion (2020.acl-main)

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Challenge: a task of generating morphological paradigms is a challenging unsupervised task for natural language processing systems . acuidados y acciones del idioma es a problem in linguistic annotators.
Approach: They propose a task of unsupervised morphological paradigm completion using raw text and a lemma list.
Outcome: The proposed system outperforms trivial baselines on 14 typologically diverse languages with ease and higher accuracy than minimally supervised systems.
Can Medical Vision-Language Pre-training Succeed with Purely Synthetic Data? (2025.findings-acl)

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Challenge: Medical Vision-Language Pretraining (MedVLP) models typically require large-scale datasets with paired, high-quality image-text data.
Approach: They propose to generate large-scale synthetic image-text pairs using off-the-shelf generative models . they propose to isolate model and training settings, focusing entirely from the data perspective.
Outcome: The proposed pipeline outperforms models trained on real data by 3.8% on averaged AUC on zero-shot classification tasks.
UNICORN: A Unified Causal Video-Oriented Language-Modeling Framework for Temporal Video-Language Tasks (2024.emnlp-main)

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Challenge: Recent advances in large multimodal models have encouraged the development of large multi-modal models . however, it is unclear how to extend these models to the more complex video domain .
Approach: They propose a visual instruction tuning framework to address temporal video-language tasks . they collect a dataset and fine-tune the framework on instruction-following data .
Outcome: The proposed model can perform better on established temporal video-language tasks without training objectives and intensive pre-training.
DTELS: Towards Dynamic Granularity of Timeline Summarization (2025.naacl-long)

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Challenge: Existing timeline summarizations lack flexibility to meet diverse granularity needs . a fine-grained timeline showing the technical details is preferred for news topics .
Approach: They propose a new paradigm to construct adaptive timelines based on user instructions or requirements.
Outcome: The proposed timelines are informative and granularly consistent, but they struggle to generate consistent timelines.
Towards Explainable Diagnosis: A Self-learned Explanatory Knowledge Base Approach (2026.acl-long)

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Challenge: Large language models (LLMs) have great potential to facilitate explainable diagnosis, but their effectiveness is often constrained by insufficient diagnostic expertise.
Approach: They propose a unified LLM-based framework for faithful and explainable diagnosis that builds a high-quality diagnostic knowledge base through a record-driven explanation learning paradigm.
Outcome: The proposed framework outperforms baselines on the DiReCT and JAMA benchmarks and improves the explanation completeness metric from 64.5% to 76.9% over the best existing methods.
Empowering GUI Agents via Autonomous Experience Exploration and Hindsight Experience Utilization for Task Planning (2026.acl-long)

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Challenge: Multimodal web agents are cost-efficient and privacy-preserving, but suffer from weak planning and limited cross-website generalization.
Approach: They propose a method which autonomously explores environments to discover experiences and utilizes hindsight experience to synthesize strictly aligned, high-level training data.
Outcome: The proposed method outperforms Qwen2.5-VL-32B model on real-world benchmarks and demonstrates that mastering low-level atomic skills does not guarantee high-level planning competence.
VisKoP: Visual Knowledge oriented Programming for Interactive Knowledge Base Question Answering (2023.acl-demo)

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Challenge: Existing knowledge base question answering systems that parse natural language questions into knowledge oriented program language (KoPL) .
Approach: They propose a knowledge base question answering system that integrates human into the loop to edit and debug queries.
Outcome: The proposed system can debug and edit knowledge base questions on a million-entity-level . it provides auto-completion for its knowledge base schema and user interaction can fix a large portion of wrong KoPL programs to acquire the correct answer.
TabDSR: Decompose, Sanitize, and Reason for Complex Numerical Reasoning in Tabular Data (2025.findings-emnlp)

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Challenge: Large language models often underperform due to complex queries, noisy data, and limited numerical capabilities.
Approach: They propose a framework that integrates seamlessly with mainstream LLMs to improve tabular reasoning.
Outcome: The proposed framework outperforms existing methods in state-of-the-art analysis.
Task-Level Thinking Steps Help Large Language Models for Challenging Classification Task (2023.emnlp-main)

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Challenge: Experimental results prove the superiority of our proposed method on challenging classification tasks.
Approach: They propose a task-level thinking step that eliminates bias introduced by demonstrations . they propose 'progressive revision framework' which can improve the thinking steps by correcting hard demonstrations.
Outcome: The proposed method achieves best performance on three kinds of classification tasks in zero-shot and few-shot settings.
DeCoRe: Decoding by Contrasting Retrieval Heads to Mitigate Hallucinations (2025.findings-emnlp)

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Challenge: Large Language Models often produce unfaithful or factually incorrect outputs . masking retrieval heads can induce hallucinations, but decoding by contrast can reduce hallucinosity .
Approach: They propose a training-free decoding strategy that contrasts the outputs of the base LLM and the masked LLM.
Outcome: The proposed decoding strategy reduces hallucinations by contrasting the outputs of the base and masked LLMs.
InstructoR: Instructing Unsupervised Conversational Dense Retrieval with Large Language Models (2023.findings-emnlp)

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Challenge: Existing methods for conversational retrieval only fine-tune on limited supervised data, making it difficult for the retriever to fully grasp the entire conversation.
Approach: They propose a method to instruct unsupervised conversational dense retrieval with large language models (LLMs) they use supervised data to discover the user's query intent from the conversation context .
Outcome: The proposed method can bring significant improvements across various ad-hoc retrievers, surpassing the current state-of-the-art method.
Synthesizing Post-Training Data for LLMs through Multi-Agent Simulation (2025.acl-long)

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Challenge: Extensive experiments demonstrate that our framework effectively generates both general and domain-specific data.
Approach: They propose a multi-agent simulator that automatically generates diverse text-based scenarios, capturing a wide range of real-world human needs.
Outcome: Experiments show that the proposed model outperforms Meta’s Llama-3-8B-Instruct model on AlpacaEval 2 and Arena-Hard benchmarks with just 20K instruction-response pairs.
Alignment Precedes Fusion: Open-Vocabulary Named Entity Recognition as Context-Type Semantic Matching (2023.findings-emnlp)

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Challenge: Continual learning and zero-shot learning approaches have not been adopted to scale to novel-emerging types.
Approach: They propose a method to recognize entities in novel types by their textual names or descriptions.
Outcome: The proposed method outperforms the state-of-the-art methods on three challenging OVNER benchmarks by 9.7%, 9.5%, and 1.8% F1-score of novel types.
LogicPoison: Logical Attacks on Graph Retrieval-Augmented Generation (2026.acl-long)

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Challenge: Graph-based Retrieval-Augmented Generation (GraphRAG) enhances the reasoning capabilities of Large Language Models (LLMs) however, traditional RAG attacks are difficult to pose an effective threat to GraphRAg systems.
Approach: They propose a novel attack framework that targets logical reasoning rather than injecting false contents into GraphRAG systems by grounding their responses in structured knowledge graphs.
Outcome: The proposed framework outperforms state-of-the-art attacks on GraphRAG systems in both effectiveness and stealth.
Conflict-Aware Memory for Embodied Agents: Enhancing Vector Data Quality via Detection Rules (2026.acl-long)

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Challenge: Embodied agents have successfully leveraged large language models (LLMs) to better transform human instructions and images into executable task plans.
Approach: They propose Conflict Detection Rules to identify and manage data quality issues in vector knowledge bases and correct the index structure.
Outcome: Experimental results show that planners with Conflict Detection Rules exceed the basic LLM planner by 15.25% and 14.25% in grammatical accuracy (GA) and interpretation accuracy (IA) on average.
AICA-Bench: Holistically Examining the Capabilities of VLMs in Affective Image Content Analysis (2026.findings-acl)

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Challenge: Recent studies have focused on factual correctness, semantic grounding, visual reasoning, or multimodal large language models.
Approach: They propose a benchmark to assess AICA, which integrates perception, reasoning, and generation into a unified framework.
Outcome: The proposed framework corrects intensity errors and significantly enhances descriptive depth.
Harnessing the Power of Large Language Model for Uncertainty Aware Graph Processing (2024.lrec-main)

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Challenge: Existing methods for graph processing rely on assumptions about data relations that are inadequate when handling large and complex graph data.
Approach: They propose a large language model enhanced by an uncertainty-aware module to provide a confidence score on the generated graph data.
Outcome: The proposed approach surpasses state-of-the-art algorithms by a substantial margin on ten datasets.
A Good Neighbor, A Found Treasure: Mining Treasured Neighbors for Knowledge Graph Entity Typing (2022.emnlp-main)

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Challenge: Existing methods to infer missing types for knowledge graphs only leverage one-hop neighbor information of the central entity, ignoring multi-hop neighbors that can provide valuable clues for inference.
Approach: They propose a method to infer missing types for knowledge graph entities by using neighbor information and co-occurrence relations between types.
Outcome: The proposed method significantly outperforms existing state-of-the-art methods on two widely used datasets.
RepoCoder: Repository-Level Code Completion Through Iterative Retrieval and Generation (2023.emnlp-main)

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Challenge: RepoCoder is a repository-level code completion framework that utilizes the useful information scattered in files.
Approach: They propose a repository-level code completion framework called RepoCoder . it integrates a similarity-based retriever and a pre-trained code language model . they propose 'repoBench' benchmark to validate the framework's effectiveness .
Outcome: The proposed framework outperforms the vanilla retrieval-augmented code completion approach in the real-world.
MDIT-Bench: Evaluating the Dual-Implicit Toxicity in Large Multimodal Models (2025.findings-acl)

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Challenge: Large Multimodal Models (LMMs) have raised concerns about model toxicity.
Approach: They propose a model to measure the toxicity gap between models and their hard level to determine whether they can handle dual-implicit toxicity.
Outcome: The proposed model can handle dual-implicit toxicity effectively on 13 prominent LMMs, but its performance drops significantly in hard level.
AgentsCourt: Building Judicial Decision-Making Agents with Court Debate Simulation and Legal Knowledge Augmentation (2024.findings-emnlp)

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Challenge: Recent advances in deep learning have significantly impacted the legal domain.
Approach: They propose a multi-agent framework for judicial decision-making that simulates the court trial process . they propose 420 Chinese judgment documents to support their framework and build a large-scale legal knowledge base .
Outcome: The proposed framework outperforms existing methods in various aspects, especially in generating legal articles.
Your Inference Request Will Become a Black Box: Confidential Inference for Cloud-based Large Language Models (2026.acl-long)

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Challenge: Existing approaches fail to ensure privacy, maintain model performance, and preserve computational efficiency simultaneously.
Approach: They propose a confidential inference framework that partitions the LLM pipeline between a client-verified Confidential Virtual Machine (CVM) and the public cloud to protect client data without compromising the cloud’s model intellectual property or inference quality.
Outcome: The proposed framework can defend against state-of-the-art token inference attacks while preserving model privacy, performance, and efficiency.
A Survey of Large Models in Sports (2026.findings-acl)

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Challenge: Increasing interest in sports has led to the rapid advancement of large models, particularly multimodal large language models (MLLMs) . linguistic intelligence is a key component of large-model-driven sports intelligence .
Approach: They propose to establish a foundation for advancing research and practical development of large-model-driven sports intelligence.
Outcome: The proposed model-driven sports intelligence will be able to process and generate sports-related language effectively and process multiple data modalities.
Learning to Reason via Self-Iterative Process Feedback for Small Language Models (2025.coling-main)

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Challenge: Existing methods for enhancing SLMs’ reasoning depend on costly external signals, resulting in SLM overly confident with limited supervision signals.
Approach: They propose to fine-tune and align SLMs using positive and negative feedback signals and introduce process supervision for rewards in preference alignment by sampling-based inference simulation and process reward models.
Outcome: The proposed method improves Gemma-2B's performance on GSM8K and MBPP, and out-of-domain generalization capabilities on MMLU_Math and HumanEval.
LANTERN in the Event Stream: Training-Free Temporal Knowledge Graph Forecasting by Balancing Inertia and Shifts (2026.findings-acl)

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Challenge: Temporal knowledge graph forecasting (TKGF) uses long-window strengthscores and short-windowed novelty scores to predict missing entities in future queries.
Approach: They propose a training-freeprompting framework that uses two perspectives of history to predict missing entities in future queries.
Outcome: The proposed framework outperforms the state-of-the-art baselineAnRe framework in ICEWS14, ICEW05-15, and GDELT.
RL-PLUS: Countering Capability Boundary Collapse of LLMs in Reinforcement Learning with Hybrid-policy Optimization (2026.acl-long)

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Challenge: Reinforcement Learning with Verifiable Reward (RLVR) has significantly advanced the complex reasoning abilities of Large Language Models (LLMs).
Approach: They propose a hybrid-policy optimization approach that synergizes internal exploitation with external data to achieve stronger reasoning capabilities.
Outcome: The proposed approach achieves state-of-the-art performance on six math reasoning benchmarks and superior performance on out-of distribution reasoning tasks.
RAP: Efficient Text-Video Retrieval with Sparse-and-Correlated Adapter (2024.findings-acl)

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Challenge: Text-Video Retrieval (TVR) aims to align relevant video content with natural language queries.
Approach: They propose to conduct efficient text-video Retrieval with a salient-and-correlated AdaPter . they propose a low-rank modulation module to refine per-image features from frozen CLIP backbone .
Outcome: Experiments on four TVR datasets show that the proposed method performs better than other methods.
HTCCN: Temporal Causal Convolutional Networks with Hawkes Process for Extrapolation Reasoning in Temporal Knowledge Graphs (2024.naacl-long)

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Challenge: Temporal knowledge graphs (TKGs) are powerful tools for storing and modeling dynamic facts.
Approach: They propose a Hawkes process-based temporal causal convolutional network for temporal reasoning under extrapolation settings.
Outcome: The proposed network is based on Hawkes process-based temporal causal convolutional network and captures the temporal evolution of facts.
Evaluating Personalized Tool-Augmented LLMs from the Perspectives of Personalization and Proactivity (2025.acl-long)

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Challenge: Personalized tool utilization is essential for aligning large language models (LLMs) with user preference in interaction scenarios with various tools.
Approach: They propose a key-point-based LLM evaluation method that mitigates biases by manually annotating key points for each test case and providing them to LLM as the reference.
Outcome: The proposed method mitigates biases in the LLM-as-a-judge system by manually annotating key points for each test case and providing them to LLM as the reference.
Context-Driven Index Trimming: A Data Quality Perspective to Enhancing Precision of RALMs (2024.findings-emnlp)

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Challenge: Existing research often overlooks the data quality issues within retrieval results, often caused by inaccurate existing vector-distance-based retrieval methods.
Approach: They propose to use Context-Driven Index Trimming framework to capture and regulate consistency between retrieved contexts and modify indexes in the database.
Outcome: Experiments show that the proposed framework can improve answer quality by 3.75% on open-domain question-answering tasks.
HULK: An Energy Efficiency Benchmark Platform for Responsible Natural Language Processing (2021.eacl-demos)

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Challenge: Pretrained models have been taking the lead of many natural language processing benchmarks such as GLUE, but energy efficiency in the process of model training and inference becomes a critical bottleneck.
Approach: They propose a multi-task energy efficiency benchmarking platform for responsible natural language processing that compares pretrained models’ energy efficiency from the perspectives of time and cost.
Outcome: The proposed model improves on the fine-tuning efficiency of pretrained models from the perspectives of time and cost.
When TableQA Meets Noise: A Dual Denoising Framework for Complex Questions and Large-scale Tables (2026.acl-long)

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Challenge: Extensive research shows that noisy data significantly degrades the performance of table reasoning in real-world applications.
Approach: They propose a dual denoising framework for complex questions and large-scale tables that uses Tree-guided table pruning to remove irrelevant data step by step.
Outcome: The proposed framework achieves outstanding performance on TableQA tasks with complex questions and large-scale tables.
Event-Centric Query Expansion in Web Search (2023.acl-industry)

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Challenge: Existing studies rely on long-term search log mining to improve search experience . EQE system is a novel event retrieval framework that can select the best expansion from a significant amount of potential events quickly and accurately.
Approach: They propose a QE system that uses a four-stage event retrieval framework . they collect news headlines and then refine a dual-tower semantic model to serve as an encoder .
Outcome: The proposed system can select the best expansion from a significant amount of potential events quickly and accurately.

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