Papers by Qi Wu

130 papers
Math Word Problem Solving with Explicit Numerical Values (2021.acl-long)

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Challenge: Existing methods for solving math word problems ignore numerical values in solving problems.
Approach: They propose a numerically-based approach that explicitly incorporates numerical values into a sequence-to-tree network and uses a mathematical properties prediction mechanism to capture category and comparison information of numerals.
Outcome: The proposed model outperforms existing state-of-the-art models on the Math23K and APE datasets.
An Investigation of LLMs’ Inefficacy in Understanding Converse Relations (2023.emnlp-main)

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Challenge: Existing benchmarks for Large Language Models (LLMs) follow the data distribution of pre-training data.
Approach: They propose a benchmark ConvRe focusing on converse relations which contains 17 relations and 1240 triples extracted from popular knowledge graph completion datasets.
Outcome: The proposed benchmark focuses on converse relations, which contains 17 relations and 1240 triples extracted from popular knowledge graph completion datasets.
Towards relation extraction from speech (2022.emnlp-main)

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Challenge: Existing methods for extracting relations from speech have been neglected due to the nature of speech.
Approach: They propose a listening information extraction task that uses speech to extract relation extraction from speech . they use a text-to-speech system and crowd-sourced native English speakers to test the task .
Outcome: The proposed task extracts semantic relationships from speech data using a new model . the proposed task is more challenging than the existing method due to the characteristics of speech .
CoCA: Fusing Position Embedding with Collinear Constrained Attention in Transformers for Long Context Window Extending (2024.acl-long)

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Challenge: Existing models that use self-attention and position embedding have anomalous behavior that hinder long context window extrapolation.
Approach: They propose a collinear constraint between Q and K to integrate RoPE and self-attention.
Outcome: The proposed model integrates self-attention and position embedding into LLMs without fine-tuning.
Privacy-Preserving News Recommendation Model Learning (2020.findings-emnlp)

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Challenge: Existing news recommendation methods rely on centralized storage of user behavior data for model training, which may lead to privacy concerns and risks due to the privacy-sensitive nature of user behaviors.
Approach: They propose a privacy-preserving method where user behavior data is locally stored on user devices to train accurate news recommendation models.
Outcome: The proposed method can train accurate news recommendation models without centralized storage of user behavior data.
Llama SLayer 8B: Shallow Layers Hold the Key to Knowledge Injection (2024.findings-emnlp)

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Challenge: Existing methods to augment pre-trained large language models require extensive computational efforts and massive data volumes, challenging the widespread accessibility of LLM research.
Approach: They propose a post-pretraining strategy of selectively enhancing shallow layers while pruning less effective deep ones to augment pretrained large language models.
Outcome: The proposed approach improves performance on the corpus of code & math and a legal corpus and is widely applicable.
Decorrelate Irrelevant, Purify Relevant: Overcome Textual Spurious Correlations from a Feature Perspective (2022.coling-1)

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Challenge: Existing methods to debiase samples with biased features obstructs the model in learning from non-biased parts of the samples.
Approach: They propose to eliminate spurious correlations in a fine-grained manner from a feature space perspective by using Random Fourier Features and weighted re-sampling to decorrelate dependencies between features.
Outcome: The proposed method eliminates spurious correlations in a fine-grained manner from a feature space perspective.
Enhancing Model Privacy in Federated Learning with Random Masking and Quantization (2025.findings-emnlp)

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Challenge: federated learning approaches are limited by the complexity of large language models and the need for specialized expertise to protect intellectual property.
Approach: They propose a federated learning approach that leverages random masking to obscure a subnetwork of model parameters and applies quantization to the remaining parameters.
Outcome: The proposed approach maintains strong model performance in federated learning settings and achieves enhanced protection of model parameters compared to baseline methods.
TriEx: A Game-based Tri-View Framework for Explaining Internal Reasoning in Multi-Agent LLMs (2026.acl-long)

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Challenge: Existing explainability methods for large language models have been limited in capturing interaction-dependent belief dynamics and multi-agent reasoning.
Approach: They propose a tri-view explainability framework that instruments sequential decision making with aligned artifacts.
Outcome: The proposed framework enables analysis of explanation faithfulness, belief dynamics, and evaluator reliability, revealing systematic mismatches between what agents say, what they believe, and what they do.
Debias NLU Datasets via Training-free Perturbations (2023.findings-emnlp)

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Challenge: Existing approaches to debiase NLU models capture biased features that are independent of the task but spuriously correlated to labels.
Approach: They propose a framework that conducts training-free perturbations on samples containing biased features to Debias NLU Datasets.
Outcome: The proposed framework shows competitive performance with previous state-of-the-art debiasing strategies.
Length Generalization of Causal Transformers without Position Encoding (2024.findings-acl)

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Challenge: Besides Transformers without position encodings, the success of NoPE provides a new way to overcome the challenge of generalizing to longer sentences.
Approach: They propose a parameter-efficient tuning for searching attention heads’ best temperature hyper-parameters, which substantially expands NoPE’s context size.
Outcome: The proposed tuning significantly expands NoPE's context size, allowing it to generalize to longer sentences with state-of-the-art generalization algorithms.
I-AM-G: Interest Augmented Multimodal Generator for Item Personalization (2024.emnlp-main)

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Challenge: e-commerce and recommender systems lack a framework for personalized generation . a new framework extracts tags from multimodal information of items that the user has interacted with .
Approach: They propose a framework that extracts tags from multimodal information and rewrites item description . they then use a decoupled text-to-text and image-to image retriever to search for similar item text .
Outcome: The proposed framework can generate results aligned with user preferences . it can be used in e-commerce and recommender systems to win over diverse user base .
Leveraging Entity Information for Cross-Modality Correlation Learning: The Entity-Guided Multimodal Summarization (2024.findings-acl)

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Challenge: Multimodal Summarization with Multimodal Output (MSMO) is a new approach to produce a multimodal summary that integrates both text and relevant images.
Approach: They propose an Entity-Guided Multimodal Summarization model that integrates both text and relevant images to produce a multimodal summary.
Outcome: The proposed model integrates text-image and entity-image information and refines image selection through knowledge distillation from a pre-trained vision-language model.
TurboFuzzLLM: Turbocharging Mutation-based Fuzzing for Effectively Jailbreaking Large Language Models in Practice (2025.naacl-industry)

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Challenge: Existing methods for jailbreaking large-language models are limited by their limitations . authors present a mutation-based fuzzing technique that generates effective jailbreaking templates .
Approach: They propose a mutation-based fuzzing technique for efficiently finding effective jailbreaking templates that combine with harmful questions to generate harmful responses.
Outcome: The proposed technique achieves 95% attack success rates on public datasets for leading LLMs . it also shows impressive generalizability to unseen harmful questions and improves model defenses to prompt attacks.
MDR: Model-Specific Demonstration Retrieval at Inference Time for In-Context Learning (2024.naacl-long)

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Challenge: Existing methods for retrieval-based in-context learning ignore model biases and fail to retrieve the most appropriate demonstrations for different LLMs.
Approach: They propose a model-specific demonstration retrieval method that considers the biases of different LLMs at inference time.
Outcome: The proposed method improves performance on seen and unseen tasks with multi-scale inference LLMs by up to 41.2%.
Uni-FedRec: A Unified Privacy-Preserving News Recommendation Framework for Model Training and Online Serving (2021.findings-emnlp)

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Challenge: Existing news recommendation methods rely on user behavior data to model user interests and user interests.
Approach: They propose a unified news recommendation framework that uses user data locally stored in user clients to train models and serve users in a privacy-preserving way.
Outcome: The proposed framework outperforms baseline methods and effectively protects user privacy.
Tiny-NewsRec: Effective and Efficient PLM-based News Recommendation (2022.emnlp-main)

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Challenge: Existing work fine tunes the PLM with the news recommendation task, which can cause a domain shift problem.
Approach: They propose a self-supervised method to adapt general PLM to news domain with a contrastive matching task between news titles and news bodies.
Outcome: The proposed method can improve both the effectiveness and efficiency of the large PLM-based news recommendation model while maintaining its performance.
DDxTutor: Clinical Reasoning Tutoring System with Differential Diagnosis-Based Structured Reasoning (2025.acl-long)

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Challenge: Recent advances in Large Language Models (LLMs) have enabled various medical educational applications, but they often provide direct answers that could reduce students’ cognitive engagement and lead to fragmented learning.
Approach: They propose a framework that follows differential diagnosis principles to decompose clinical reasoning into teachable components.
Outcome: The proposed framework decomposes clinical reasoning into teachable components and generates structured teaching references and conducts diagnostic tutoring dialogues.
Reviews Meet Graphs: Enhancing User and Item Representations for Recommendation with Hierarchical Attentive Graph Neural Network (D19-1)

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Challenge: Existing methods to learn user and item representations from review texts do not take into account the user-user and item-item relatedness of the user.
Approach: They propose to use review content and user-item graphs to integrate them as different views.
Outcome: The proposed approach can learn user and item representations from review content and user-item graphs.
TransferTOD: A Generalizable Chinese Multi-Domain Task-Oriented Dialogue System with Transfer Capabilities (2024.emnlp-main)

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Challenge: Current datasets cater to user-led systems and are limited to predefined specific scenarios and slots.
Approach: They propose to use a Chinese dialogue dataset to train a model that authentically simulates human-computer dialogues in 30 popular life service scenarios.
Outcome: The proposed model achieves a joint accuracy of 75.09% in out-of-domain evaluations . it also achieves notable abilities in slot filling and questioning .
Connecting Language and Vision to Actions (P18-5)

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Challenge: Recent advances in language and vision have made incredible progress in describing images and interacting with visual content in a physical or embodied environment.
Approach: This tutorial will provide an overview of the growing number of multimodal tasks and datasets that combine textual and visual understanding.
Outcome: This tutorial will review the state-of-the-art approaches to selected tasks such as image captioning, visual question answering and visual dialog.
A Confidence-based Partial Label Learning Model for Crowd-Annotated Named Entity Recognition (2023.findings-acl)

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Challenge: Existing models for named entity recognition (NER) are based on large-scale labeled datasets, which always obtain using crowdsourcing.
Approach: They propose a CONfidence-based partial Label Learning method to integrate prior and posterior confidences for crowd-annotated named entity recognition models.
Outcome: The proposed model improves on real-world and synthetic datasets compared with baselines.
PaCoRe: Learning to Scale Test-Time Compute with Parallel Coordinated Reasoning (2026.acl-long)

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Challenge: Parallel Coordinated Reasoning (PaCoRe) overcomes a central limitation of contemporary language models: their inability to scale test-time compute (TTC) far beyond sequential reasoning under a fixed context window.
Approach: They propose a training-and-inference framework to overcome a central limitation of language models: their inability to scale test-time compute (TTC) under a fixed context window.
Outcome: The proposed model scales to multi-million-token effective TTC without exceeding context limits.
RetroLLM: Empowering Large Language Models to Retrieve Fine-grained Evidence within Generation (2025.acl-long)

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Challenge: Existing methods rely on separate retrievers to fetch top-k text chunks for generating evidence, and they lack joint optimization.
Approach: They propose a framework that integrates retrieval and generation into a single, auto-regressive process, enabling LLMs to directly generate fine-grained evidence from the corpus with constrained decoding.
Outcome: Extensive experiments on five open-domain QA datasets demonstrate the proposed framework’s superior performance across both in-domain and out-of-domain tasks.
Infinity-Parser: Layout-Aware Reinforcement Learning with High-quality Document Parsing Dataset (2026.findings-acl)

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Challenge: Existing supervised fine-tuning methods struggle to generalize across document types, leading to poor performance.
Approach: They propose layoutRL, a reinforcement learning framework that optimizes layout understanding through composite rewards integrating normalized edit distance, paragraph count accuracy, and reading order preservation.
Outcome: The proposed model outperforms specialized document parsing systems and general-purpose vision-language models on a broad range of document types, languages, and structural complexities.
PFDial: A Structured Dialogue Instruction Fine-tuning Method Based on UML Flowcharts (2025.findings-acl)

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Challenge: Large Language Models (LLMs) have shown remarkable progress in dialogue and reasoning, but they struggle to solve strictly constrained dialogue tasks.
Approach: They construct a dataset that contains 12,705 high-quality Chinese dialogue instructions from 440 flowcharts containing 5,055 process nodes.
Outcome: The proposed model outperforms GPT-4o models on backward transitions and outperformed GPT-42 models on the same dataset.
Neural News Recommendation with Heterogeneous User Behavior (D19-1)

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Challenge: Existing news recommendation methods rely on news click history to model user interest, but data sparsity is a problem . other kinds of user behaviors such as webpage browsing and search queries can provide useful clues of users’ news reading interest.
Approach: They propose to exploit heterogeneous user behaviors to learn news representations from their titles via CNN networks and apply attention networks to select important words.
Outcome: The proposed approach exploits heterogeneous user behaviors on a real-world dataset.
AgentGym: Evaluating and Training Large Language Model-based Agents across Diverse Environments (2025.acl-long)

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Challenge: Large language models (LLMs) are promising foundations to build generally-capable agents . however, the community lacks a unified interactive framework that covers diverse environments for comprehensive evaluation of agents.
Approach: They propose a framework that features 7 real-world scenarios, 14 environments, and 89 tasks for unified, real-time, and concurrent agent interaction.
Outcome: The proposed framework features 7 real-world scenarios, 14 environments, and 89 tasks for unified, real-time, and concurrent agent interaction.
SRF: Enhancing Document-Level Relation Extraction with a Novel Secondary Reasoning Framework (2024.emnlp-main)

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Challenge: Existing methods for document-level relation extraction ignore bidirectional mention interaction when generating relational features for entity pairs.
Approach: They propose a document-level relation extraction model that incorporates bidirectional mention fusion and a simple yet effective evidence extraction module for relation prediction.
Outcome: The proposed model achieves SOTA performance and the proposed method is effective and general when integrated into existing models.
UniICL: An Efficient ICL Framework Unifying Compression, Selection, and Generation (2025.acl-long)

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Challenge: Existing methods to improve reasoning abilities of Large Language Models (LLMs) have limitations due to excessive growth in context length, causing large hardware burden.
Approach: They propose a novel Unified ICL framework that unifies demonstration compression, demonstration selection, and final response generation.
Outcome: The proposed framework unifies demonstration compression, demonstration selection, and final response generation.
Multi-Programming Language Sandbox for LLMs (2025.acl-demo)

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Challenge: MPLSandbox is an out-of-the-box multi-programming language sandbox designed to provide unified and comprehensive feedback from compiler and analysis tools for Large Language Models (LLMs).
Approach: They propose a multi-programming language sandbox that provides unified feedback from compilers and analysis tools for Large Language Models.
Outcome: The proposed multi-language sandbox can provide comprehensive feedback from compilers and analysis tools for large language models (LLMs).
An Edge-Enhanced Hierarchical Graph-to-Tree Network for Math Word Problem Solving (2021.findings-emnlp)

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Challenge: Existing work on graph neural networks to capture word relationships neglects the rest of the problem.
Approach: They propose an edge-enhanced hierarchical graph encoder to incorporate edge label information.
Outcome: The proposed model can improve performance on the MAWPS and Math23K datasets compared with state-of-the-art methods.
DuReadervis: A Chinese Dataset for Open-domain Document Visual Question Answering (2022.findings-acl)

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Challenge: Open-domain question answering is a task that requires answering questions based on a collection of document images.
Approach: They propose to use document images to answer questions using layouts and visual features instead of text.
Outcome: The proposed approach reduces human cost and improves scalability of QA systems by incorporating layouts and visual features.
Adaptive Knowledge-Enhanced Bayesian Meta-Learning for Few-shot Event Detection (2021.findings-acl)

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Challenge: Event detection typically does not have sufficient labelled data, thus can be formulated as a few-shot learning problem.
Approach: They propose a knowledge-based fewshot event detection method which introduces external event knowledge as the knowledge prior of event types.
Outcome: Experiments show that the proposed method outperforms baselines by 15 F 1 points . event detection is an important task in information extraction .
ShopSimulator: Evaluating and Exploring RL-Driven LLM Agent for Shopping Assistants (2026.acl-long)

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Challenge: Existing studies on large language model-based agents focus on evaluation benchmarks without training support.
Approach: They propose a large-scale Chinese shopping simulation environment that uses large language models to train agents.
Outcome: The proposed model performs poorly in a large-scale and challenging shopping environment in China.
SpecAgent: A Speculative Retrieval and Forecasting Agent for Code Completion (2026.acl-long)

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Challenge: Large Language Models (LLMs) excel at code-related tasks but struggle in real software repositories.
Approach: They propose a large-scale agent that injects repository context at inference time to improve both latency and code-generation quality by proactively exploring repository files during indexing and constructing speculative context.
Outcome: Experiments show that SpecAgent achieves 9–11% relative performance gains compared to baselines while significantly reducing inference latency.
NoisyTune: A Little Noise Can Help You Finetune Pretrained Language Models Better (2022.acl-short)

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Challenge: Existing methods for finetuning pretrained language models (PLMs) have risks in overfitting the pretraining tasks and data, which may lead to suboptimal performance.
Approach: They propose a method which adds noise to parameters of PLMs before fine-tuning.
Outcome: The proposed method can be used on GLUE English and XTREME multilingual benchmarks.
Divide-Verify-Refine: Can LLMs Self-align with Complex Instructions? (2025.findings-acl)

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Challenge: Existing research shows LLMs struggle with complex instructions involving multiple constraints.
Approach: They propose a framework to divide complex instructions into single constraints and prepare appropriate tools to verify responses.
Outcome: The proposed framework doubles Llama3.1-8B’s constraint adherence and triples Mistral-7B’ s performance.
Diagnosing Vision-and-Language Navigation: What Really Matters (2022.naacl-main)

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Challenge: Existing models claim to be able to align object tokens with specific visual targets, but there are non-negligible gaps between the two.
Approach: They conduct diagnostic experiments to examine how the agents perceive multimodal input by ablation diagnostics input data.
Outcome: The results show that indoor and outdoor navigation agents refer to object and direction tokens when making decisions.
Enhancing Contrastive Learning with Noise-Guided Attack: Towards Continual Relation Extraction in the Wild (2024.acl-long)

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Challenge: Existing methods for continual relation extraction (CRE) excel in preserving old knowledge but falter when confronted with contaminated data streams.
Approach: They propose a noise-resistant contrastive framework for continual relation extraction (CRE) that preserves old knowledge while learning incremental corrupted relations.
Outcome: The proposed framework outperforms state-of-the-art methods on various benchmarks with increasing noise rates.
Searching for Best Practices in Retrieval-Augmented Generation (2024.emnlp-main)

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Challenge: Retrieval-augmented generation (RAG) techniques have proven to be effective in integrating up-to-date information, mitigating hallucinations, and enhancing response quality, especially in specialized domains.
Approach: They propose several strategies for deploying RAG that balance performance and efficiency.
Outcome: The proposed approaches can significantly enhance question-answering capabilities and accelerate the generation of multimodal content using a “retrieval as generation” strategy.
Hierarchical Document Refinement for Long-context Retrieval-augmented Generation (2025.acl-long)

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Challenge: Real-world RAG applications often encounter long-context input scenarios where redundant information and noise results in higher inference costs and reduced performance.
Approach: They propose an efficient plug-and-play refiner that leverages the structural characteristics of long documents.
Outcome: Experiments on seven QA datasets show that LongRefiner achieves competitive performance in various scenarios while using 10x fewer computational costs and latency compared to baseline.
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.
Sub-Instruction Aware Vision-and-Language Navigation (2020.emnlp-main)

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Challenge: Despite significant advances, few previous works are able to fully utilize the strong correspondence between visual and textual sequences.
Approach: They propose to provide agents with fine-grained annotations during training and provide them with sub-instructions and their corresponding paths.
Outcome: The proposed method improves the performance of four state-of-the-art agents in a room-to-room (R2R) benchmark dataset.
SCMAPR: Self-Correcting Multi-Agent Prompt Refinement for Complex-Scenario Text-to-Video Generation (2026.findings-acl)

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Challenge: Text-to-Video (T2V) generation is a challenge under complex scenarios.
Approach: They propose a scenario-aware and self-correcting multi-agent prompt refinement framework for T2V prompting.
Outcome: The proposed framework improves text-to-video alignment and overall generation quality under complex scenarios.
Many Heads Are Better Than One: Improved Scientific Idea Generation by A LLM-Based Multi-Agent System (2025.acl-long)

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Challenge: Recent AI methods have shown promise in tasks such as hypothesis generation and experimental design, but they fail to replicate the collaborative nature of real-world scientific practices.
Approach: They propose a virtual scientific system that mimics the collaborative nature of scientific research by organizing a team of agents to generate, evaluate, and refine research ideas.
Outcome: The proposed system outperforms the state-of-the-art method in producing new scientific ideas and offers valuable insights to guide future research.
A Bounding Box is Worth One Token - Interleaving Layout and Text in a Large Language Model for Document Understanding (2025.findings-acl)

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Challenge: Existing methods for integrating spatial layouts with text have limitations . existing methods produce overly long text sequences or lack autoregressive traits of LLMs .
Approach: They introduce Interleaving Layout and Text in a Large Language Model (LayTextLLM) they use OCR-derived text and spatial layouts to integrate with LLMs for document understanding .
Outcome: The proposed model shows an increase in performance in KIE and VQA tasks.
PLAWBENCH: A Rubric-Based Benchmark for Evaluating LLMs in Real-World Legal Practice (2026.acl-long)

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Challenge: Existing benchmarks for large language models (LLMs) are coarse, single-dimensional metrics and do not explicitly assess fine-grained legal reasoning.
Approach: They propose a Practical Law Benchmark to evaluate large language models in real-world legal practice scenarios.
Outcome: The proposed model is based on 850 questions and 13 scenarios with expert-designed evaluation rubrics.
MulDimIF: A Multi-Dimensional Constraint Framework for Evaluating and Improving Instruction Following in Large Language Models (2026.findings-acl)

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Challenge: Existing research has focused on constraint categories, offering little guidance for improving instruction following abilities.
Approach: They propose a multi-dimensional constraint framework that allows for instruction following . they construct 9,106 code-verifiable samples and evaluate 18 LLMs .
Outcome: The proposed framework improves instruction following performance without compromising general performance.
Making Parameter-efficient Tuning More Efficient: A Unified Framework for Classification Tasks (2022.coling-1)

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Challenge: Large pre-trained language models (PLMs) have demonstrated superior performance in industrial applications.
Approach: They propose a framework that re-uses existing parameter-efficient methods with a unified classifier.
Outcome: The proposed framework improves the efficiency of existing parameter-efficient methods with a unified classifier.
LLMEval-Fair: A Large-Scale Longitudinal Study on Robust and Fair Evaluation of Large Language Models (2026.acl-long)

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Challenge: Existing evaluation of Large Language Models on static benchmarks is vulnerable to data contamination and leaderboard overfitting.
Approach: LLMEval-Fair framework provides a framework for dynamic evaluation of Large Language Models . evaluators use a proprietary bank of 220k graduate-level questions to analyze model data .
Outcome: LLMEval-Fair provides robust and credible evaluation framework for Large Language Models . it provides a strong empirical validation for the dynamic evaluation paradigm .
Your Vision-Language Model Itself Is a Strong Filter: Towards High-Quality Instruction Tuning with Data Selection (2024.findings-acl)

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Challenge: Existing data selection methods for instruction-following large language models rely on unreliable scores or use downstream tasks for selection.
Approach: They propose a method that utilizes the VLM itself as a filter to select high-quality instruction-tuning data.
Outcome: The proposed method can reach better results compared to full data settings with merely about 15% samples and can achieve superior performance against competitive baselines.
Reinforcement Learning on Pre-Training Data (2026.acl-long)

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Challenge: Recent progress in large language models is driven by scaling of training compute through pre-training with nexttoken prediction (NTP) or post-training (RL) Pre-training using NTP enables models to acquire extensive knowledge and skills from general data, but it suffers from data inefficiency and catastrophic forgetting in continual learning settings.
Approach: They propose to scale training compute through pre-training with next-token prediction (NTP) or post-training by scaling reinforcement learning (RL) to improve learning from general data.
Outcome: Experiments on multiple benchmarks and models show that the proposed approach improves continual pre-training and provides a strong foundation for post-training on Qwen3-8B-Base.
CQG: A Simple and Effective Controlled Generation Framework for Multi-hop Question Generation (2022.acl-long)

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Challenge: Current models can not ensure the complexity of generated questions, so they may generate shallow questions that can be answered without multi-hop reasoning.
Approach: They propose a controlled framework to generate multi-hop questions that contain key entities in multi- hop reasoning chains and a novel Transformer-based decoder to guarantee that key entities appear in the questions.
Outcome: The proposed model outperforms the state-of-the-art model 25% on HotpotQA.
Pre-training Language Model as a Multi-perspective Course Learner (2023.findings-acl)

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Challenge: Experimental results show that our method significantly improves ELECTRA’s average performance by 2.8% and 3.2% absolute points respectively on GLUE and SQuAD 2.0 benchmarks.
Approach: They propose a multi-perspective course learning method to fetch many degrees and visual angles for sample-efficient pre-training and to fully leverage the relationship between generator and discriminator.
Outcome: The proposed method improves ELECTRA's performance on GLUE and SQuAD 2.0 benchmarks and overshadows recent advanced ELECL-style models under the same settings.
Modeling the Q-Diversity in a Min-max Play Game for Robust Optimization (2023.findings-acl)

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Challenge: Existing methods for minimizing the worst-case loss of annotated groups are lacking in practice due to expensive annotations and privacy issues.
Approach: They propose a distributionally robust optimization framework that relaxes group identification into direct parameterization by using an interactive training mode.
Outcome: The proposed method outperforms state-of-the-art methods on synthetic and real-world text classification tasks.
Attentive Pooling with Learnable Norms for Text Representation (2020.acl-main)

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Challenge: Existing pooling methods that use fixed pooling norms may not be optimal for learning text representations in different tasks.
Approach: They propose to learn pooling norms in an end-to-end manner to automatically find the optimal ones for text representation in different tasks.
Outcome: The proposed approach improves on four benchmark datasets on a neural NLP model.
A Structure-Aware Argument Encoder for Literature Discourse Analysis (2022.coling-1)

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Challenge: Existing research for argument representation learning treats tokens in sentences equally and ignores the implied structure information of argumentative context.
Approach: They propose to separate tokens into two groups to capture structural information of arguments and to incorporate paragraph-level position information into the model.
Outcome: The proposed model captures structural information of arguments and is able to identify arguments automatically.
HieRec: Hierarchical User Interest Modeling for Personalized News Recommendation (2021.acl-long)

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Challenge: Existing news recommendation methods learn a single user embedding for each user from their previous behaviors to represent their overall interest. Existing methods only learn 'one' embeddable representation vectors to model user interest.
Approach: They propose a news recommendation method with hierarchical user interest modeling that captures user interest in news rather than a single user embedding.
Outcome: The proposed method can better capture multi-grained user interest in news.
PlugAT: A Plug and Play Module to Defend against Textual Adversarial Attack (2022.coling-1)

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Challenge: Recent studies have shown that adversarial examples can be easily fooled by adversarially perturbed examples.
Approach: They propose a pluggable defense module PlugAT to provide robust predictions by adding a few trainable parameters to the model inputs while keeping the original model frozen.
Outcome: The proposed model improves robustness over several strong baselines whilst training only 9.1% parameters.
LaRS: Latent Reasoning Skills for Chain-of-Thought Reasoning (2024.findings-emnlp)

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Challenge: Existing methods require human experts or pre-trained LLMs to describe the skill to guide the selection.
Approach: They propose a new approach that uses unsupervised learning to create a latent space representation of rationales with a variable called a reasoning skill.
Outcome: Empirical results show that LaRS outperforms SOTA skill-based selection methods . it processes example banks four times faster and reduces LLM inferences by half .
AutoSchemaKG: Autonomous Knowledge Graph Construction through Dynamic Schema Induction from Web-Scale Corpora (2026.acl-long)

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Challenge: Existing knowledge graph construction frameworks require predefined schemas, limiting their scalability and domain coverage.
Approach: They propose a framework for fully autonomous knowledge graph construction that eliminates the need for predefined schemas.
Outcome: The proposed framework outperforms state-of-the-art models on multi-hop QA tasks and enhances LLM factuality.
Multi-stage Distillation Framework for Cross-Lingual Semantic Similarity Matching (2022.findings-naacl)

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Challenge: Existing studies have shown that cross-lingual knowledge distillation can improve the performance of pre-trained models for cross-linguistic similarity matching tasks.
Approach: They propose a multi-stage distillation framework for constructing a small-size but high-performance cross-lingual model using contrastive learning, bottleneck, and parameter recurrent strategies.
Outcome: The proposed model can compress the size of XLM-R and MiniLM by more than 50% while the performance is only reduced by about 1%.
SciCustom: A Framework for Custom Evaluation of Scientific Capabilities in Large Language Models (2026.acl-long)

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Challenge: Existing evaluations of large language models fail to reflect fine-grained capabilities . existing benchmarks are manually curated or domain-generic, limiting scalability and alignment with real use cases.
Approach: They propose a framework that allows custom construction of benchmarks from large-scale scientific data to evaluate application-specific scientific capabilities in LLMs.
Outcome: The proposed framework reveals fine-grained differences in scientific capabilities that standard benchmarks overlook . it allows custom construction of benchmarks from large-scale scientific data to evaluate application-specific capabilities in LLMs.
ToolSword: Unveiling Safety Issues of Large Language Models in Tool Learning Across Three Stages (2024.acl-long)

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Challenge: Existing research focuses on enhancing LLMs capabilities through tool utilization.
Approach: They propose a framework to investigate safety issues in large language models in tool learning . they propose malicious queries and jailbreak attacks in the input stage .
Outcome: The proposed framework investigates six safety scenarios for LLMs in tool learning . the data will be released upon acceptance of the proposed framework .
Can LLMs Simulate L2-English Dialogue? An Information-Theoretic Analysis of L1-Dependent Biases (2025.acl-long)

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Challenge: Large Language Models (LLMs) can simulate non-native-like English use observed in human second language (L2) learners interfered with by their native first language (N1) knowledge.
Approach: They use large language models to simulate non-native-like English use observed in human second language (L2) learners, and then compare their outputs to real L2 learner data.
Outcome: The proposed models replicate L1-dependent patterns observed in human second language (L2) learners, with distinct influences from various languages.
Towards Identification and Intervention of Safety-Critical Parameters in Large Language Models (2026.findings-acl)

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Challenge: Existing safety-related methodologies for large language models are lacking . despite advances in safety alignment techniques, safeguarding LLMs during adaptation to various tasks remains a challenge.
Approach: They propose a framework to quantify how different parameters affect LLM safety . they propose two targeted intervention paradigms for safety enhancement and preservation .
Outcome: The proposed framework reveals safety-critical patterns across different LLM architectures.
DiffuVST: Narrating Fictional Scenes with Global-History-Guided Denoising Models (2023.findings-emnlp)

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Challenge: Existing methods for visual storytelling suffer from low inference speed and are not well-suited for synthetic scenes.
Approach: They propose a diffusion-based system that generates visual descriptions as a single conditional denoising process.
Outcome: The proposed system improves inter-sentence coherence and image-to-text fidelity.
Robust Lottery Tickets for Pre-trained Language Models (2022.acl-long)

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Challenge: Recent studies have shown that pre-trained language models contain smaller matching subnetworks that are not robust to adversarial examples.
Approach: They propose a method to find robust tickets hidden in pre-trained language models by learning binary weight masks and an adversarial loss objective to guide the search.
Outcome: The proposed method improves on previous work on adversarial robustness evaluation.
RLSeek: Evidence-Grounded Reasoning for RAG Hallucination Detection (2026.acl-long)

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Challenge: Recent work addresses this problem by training span-level hallucination detectors using reinforcement learning and chain-of-thought reasoning.
Approach: They propose a framework that explicitly enforces active evidence seeking during CoT reasoning by requiring quotation of relevant source segments at each verification step.
Outcome: The proposed framework improves hallucination span detection performance with limited reasoning overhead and improved robustness in out-of-domain settings.
MMCLIP: Cross-Modal Attention Masked Modelling for Medical Language-Image Pre-Training (2026.acl-long)

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Challenge: Existing vision-and-language pretraining methods face challenges in reconstructing pathological features due to limited data.
Approach: They propose a method that uses masked modeling to enhance visual and linguistic learning.
Outcome: MMCLIP integrates unpaired data through disease-kind prompts to achieve state-of-the-art performance in zero-shot and fine-tuning across five benchmarks.
VLN-MME: Diagnosing MLLMs as Language-guided Visual Navigation Agents (2026.acl-long)

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Challenge: Multimodal Large Language Models have demonstrated remarkable capabilities across vision-language tasks, but their performance as embodied agents needs further exploration.
Approach: They propose a framework to evaluate multimodal large language models as zero-shot agents . they find that enhancing prevalent agents with Chain-of-Thought reasoning and self-reflection leads to an unexpected performance decrease.
Outcome: The proposed framework enables comparisons and component-level ablations across diverse MLLM architectures, agent designs, and navigation tasks.
GLGE: A New General Language Generation Evaluation Benchmark (2021.findings-acl)

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Challenge: Multi-task benchmarks focus on a range of Natural Language Understanding (NLU) tasks without considering the Natural Language Generation (NLG) models.
Approach: They propose a multi-task benchmark for evaluating the generalization capabilities of NLG models across eight language generation tasks.
Outcome: The proposed benchmarks are based on GLUE and Su-perGLUE for English and several other languages.
QiMeng-Attention: SOTA Attention Operator is generated by SOTA Attention Algorithm (2025.findings-acl)

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Challenge: Existing LLMs cannot comprehend the complex data flow and computation process of the attention operator and utilize low-level primitive to exploit GPU performance.
Approach: They propose an LLM-friendly Thinking Language (LLM-TL) that can decouple the generation of high-level optimization logic and low-level implementation on GPU and enhance LLMs’ understanding of attention operator.
Outcome: The proposed method outshines existing LLMs on A100, RTX8000, and T4 GPUs, achieving a speed-up of up to 35.16.
Hi-Transformer: Hierarchical Interactive Transformer for Efficient and Effective Long Document Modeling (2021.acl-short)

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Challenge: Existing approaches to model long documents are difficult due to the quadratic complexity of text length.
Approach: They propose a hierarchical interactive Transformer for efficient long document modeling.
Outcome: Extensive experiments on three benchmark datasets validate the efficiency and effectiveness of Hi-Transformer in long document modeling.
TP-Detector: Detecting Turning Points in the Engineering Process of Large-scale Projects (2023.emnlp-demo)

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Challenge: Extensive experiments demonstrate the effectiveness of our proposed method on a constructed dataset compared to baseline methods.
Approach: They propose a novel task of detecting turning points in the engineering process of large-scale projects by treating news streams as a window with multiple instances.
Outcome: The proposed mode is able to detect transitions in news streams with multiple instances.
Unified Dual-view Cognitive Model for Interpretable Claim Verification (2021.acl-long)

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Challenge: Existing studies constructing direct interactions between the claim and each single user response to capture evidence have shown remarkable success in interpretable claim verification.
Approach: They propose a Dual-view model based on the views of Collective and Individual Cognition (CICD) that captures word-level semantics based . on individual cognition, they adjust the proportion between them to generate global evidence.
Outcome: The proposed model is based on the views of collective and individual cognition and achieves state-of-the-art performance on three benchmark datasets.
Which Reasoning Trajectories Teach Students to Reason Better? A Simple Metric of Informative Alignment (2026.acl-long)

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Challenge: Existing methods assess suitability primarily through student likelihood, favoring trajectories that align closely with the student model’s current behavior but overlooking more informative ones.
Approach: They propose a Rank–Surprisal Ratio metric that captures both alignment and informativeness to assess the suitability of a reasoning trajectory.
Outcome: The proposed metric captures both alignment and informativeness to assess the suitability of a reasoning trajectory.
Two Birds with One Stone: Unified Model Learning for Both Recall and Ranking in News Recommendation (2022.findings-acl)

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Challenge: Existing news recommender systems conduct news recall and ranking separately with different models, but maintaining multiple models leads to high computational cost and high latency.
Approach: They propose a unified method for recall and ranking in news recommendation that uses historical news click behaviors to extract user embeddings for ranking from the user's attention query.
Outcome: The proposed method improves recall and ranking efficiency and effectiveness on a benchmark dataset.
TASO: Task-Aligned Sparse Optimization for Parameter-Efficient Model Adaptation (2025.emnlp-main)

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Challenge: Existing studies have shown that LoRA introduces substantial parameter redundancy, which not only increases the number of trainable parameters but also hinders the effectiveness of fine-tuning.
Approach: They propose a method that leverages importance information from the pretrained model’s weights to mitigate LoRA redundancy.
Outcome: The proposed method significantly reduces the number of trainable parameters required for task adaptation while providing a task-aligned perspective for LoRA redundancy reduction.
Incorporating Dynamic Semantics into Pre-Trained Language Model for Aspect-based Sentiment Analysis (2022.findings-acl)

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Challenge: Aspect-based sentiment analysis (ABSA) predicts sentiment polarity towards a specific aspect in a sentence.
Approach: They propose to use a dynamic aspect-oriented semantics-based method to learn ABSA.
Outcome: The proposed method can learn dynamic aspect-oriented semantics for ABSA on three benchmark datasets.
TEACH: A Contrastive Knowledge Adaptive Distillation Framework for Classical Chinese Understanding (2025.acl-long)

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Challenge: Traditional methods for processing classical Chinese segment language understanding into discrete tasks, which overlook crucial background information and reduce user engagement.
Approach: They propose a framework that integrates word sense disambiguation with sentence translation to minimize hallucinations and improve semantic analysis.
Outcome: The proposed framework integrates word sense disambiguation with sentence translation to minimize hallucinations and improve semantic analysis.
EgoMemory: Memory-Augmented Personalized Retrieval for Long-Context Egocentric Video (2026.findings-acl)

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Challenge: Existing egocentric video datasets do not support the personalization and long-context reasoning required for episodic memory retrieval.
Approach: They propose a benchmark framework that uses MLLMs and reflective Chain-of-Thought to ground user queries in personal memory explicitly.
Outcome: The proposed framework outperforms state-of-the-art benchmarks on three benchmarks . it can be used to generate detailed target video descriptions in long-context contexts based on user-specific object annotations enriched with user-specified object annotation data .
Retrieved Sequence Augmentation for Protein Representation Learning (2024.emnlp-main)

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Challenge: Using multiple sequence alignments (MSA) to extract evolutionary knowledge is limited.
Approach: They propose to use multiple sequence alignments to augment protein representations . they propose to employ Retrieved Sequence Augmentation to enhance protein representation learning .
Outcome: The proposed method surpasses MSA Transformer by 5% in structural and property prediction tasks while being 373 times faster.
CoMave: Contrastive Pre-training with Multi-scale Masking for Attribute Value Extraction (2023.findings-acl)

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Challenge: Existing methods to extract product features from unstructured text still suffer from problems . e-commerce platforms are focusing on multi-scale values, which can be confusing .
Approach: They propose a pre-training technique to automatically obtain attribute value pairs from product descriptions to aid e-commerce.
Outcome: The proposed method improves on the existing token-level masking strategy and achieves state-of-the-art on four benchmarks.
CoTKR: Chain-of-Thought Enhanced Knowledge Rewriting for Complex Knowledge Graph Question Answering (2024.emnlp-main)

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Challenge: Existing knowledge rewriting methods may include irrelevant information, omit crucial details, or fail to align with the question’s semantics.
Approach: They propose a new rewriting method CoTKR for generating reasoning traces and corresponding knowledge in an interleaved manner, thereby mitigating the limitations of single-step knowledge rewrite.
Outcome: The proposed method mitigates the limitations of single-step knowledge rewriting and bridges the preference gap between the knowledge reactor and the question answering (QA) model.
TL-Training: A Task-Feature-Based Framework for Training Large Language Models in Tool Use (2025.findings-emnlp)

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Challenge: a new approach to training large language models (LLMs) overlooks task-specific characteristics in tool use, leading to performance bottlenecks.
Approach: They propose a task-feature-based framework that mitigates the effects of suboptimal training data . they use a dataset to train large-scale LLMs and a reward mechanism tailored to error categories .
Outcome: The proposed framework matches or surpasses open- and closed-source LLMs in tool-use performance using only 1,217 training data points.
LCAN: A Label-Aware Contrastive Attention Network for Multi-Intent Recognition and Slot Filling in Task-Oriented Dialogue Systems (2025.findings-emnlp)

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Challenge: Multi-intent utterances processing remains a persistent challenge due to intricate intent-slot dependencies and semantic ambiguities.
Approach: They propose a label-aware contrastive attention network (LCAN) that integrates label-based attention and contrastive learning strategies to improve semantic understanding and generalization in multi-intent scenarios.
Outcome: The proposed model improves intent recognition and slot filling performance in multi-intent dialogue systems.
PTUM: Pre-training User Model from Unlabeled User Behaviors via Self-supervision (2020.findings-emnlp)

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Challenge: Existing methods for user modeling cannot exploit useful information in unlabeled data . Existing models only model task-specific user information and do not exploit universal user information encoded in user behaviors.
Approach: They propose to pre-train user models from large-scale unlabeled user behavior data.
Outcome: The proposed method can model relatedness between historical and future behaviors on two real-world datasets.
TRAC: Teacher-Guided Token Reward with Adaptive Calibration for Robust Policy Optimization (2026.acl-long)

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Challenge: Current reward models for reinforcement learning (RL) rely on outcome rewards that propagate a single scalar value across all tokens based on final correctness.
Approach: They propose a framework that derives dense token-level supervision from LLMs . they use a multi-granularity calibration mechanism to modulate teacher influence .
Outcome: The proposed framework evaluates teacher reliability across problem-level expertise, trajectory-level discrimination, and token-level confidence.
XGLUE: A New Benchmark Dataset for Cross-lingual Pre-training, Understanding and Generation (2020.emnlp-main)

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Challenge: XGLUE provides a benchmark dataset to train large-scale cross-lingual pre-trained models . XCLUE provides 11 diversified tasks that cover both understanding and generation scenarios .
Approach: They introduce a new benchmark dataset to train large-scale cross-lingual pre-trained models using multilingual and bilingual corpora.
Outcome: The proposed dataset is labeled in English and includes only natural language understanding tasks.
ToolEyes: Fine-Grained Evaluation for Tool Learning Capabilities of Large Language Models in Real-world Scenarios (2025.coling-main)

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Challenge: Existing evaluations of tool learning focus on validation of tools for large language models with expected outcomes, but this focus ignores the complex capabilities required for LLMs to effectively use tools.
Approach: They propose a fine-grained system for evaluation of large language models’ tool learning capabilities in authentic scenarios.
Outcome: The proposed system examines seven real-world scenarios, analyzing five dimensions crucial to LLMs in tool learning: format alignment, intent comprehension, behavior planning, tool selection, and answer organization.
Digging out Discrimination Information from Generated Samples for Robust Visual Question Answering (2023.findings-acl)

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Challenge: Existing methods to solve this problem rely on additional annotations and generate negative samples .
Approach: They propose a method to Dig out Discrimination information from Generated samples to address these limitations.
Outcome: The proposed method improves on the visual question-answering datasets.
Few-Shot Complex Knowledge Base Question Answering via Meta Reinforcement Learning (2020.emnlp-main)

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Challenge: Existing approaches to complex question-answering (CQA) exhibit uneven performance when questions have different types, harboring inherently different characteristics, e.g., difficulty level.
Approach: They propose a meta-reinforcement learning approach to program induction in CQA to tackle the potential distributional bias in questions.
Outcome: The proposed method achieves state-of-the-art performance on the CQA dataset while using only five trial trajectories for the top-5 retrieved questions in each support set.
OS-Sentinel: Towards Safety-Enhanced Mobile GUI Agents via Hybrid Validation in Realistic Workflows (2026.acl-long)

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Challenge: Existing methods for detecting unsafe mobile GUI agents are underexplored.
Approach: They propose a mobile agent safety detection framework that integrates a formal verifier and a VLM-based contextual judge to detect system-level violations.
Outcome: The proposed framework achieves 10%–30% improvements over existing approaches across multiple metrics.
PP-Rec: News Recommendation with Personalized User Interest and Time-aware News Popularity (2021.acl-long)

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Challenge: Existing personalized news recommendation methods have difficulties in making accurate recommendations to cold-start users.
Approach: They propose to incorporate news popularity information to improve cold-start recommendations . they propose to use a popularity-aware user encoder to eliminate popularity bias .
Outcome: The proposed method improves accuracy and diversity of personalized news recommendation on two real-world datasets.
SentiRec: Sentiment Diversity-aware Neural News Recommendation (2020.aacl-main)

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Challenge: Existing news recommendation methods rank candidate news based on relevance to users’ historical browsed news, but if browsed data is dominated by certain kinds of sentiment, the model may recommend news with the same sentiment.
Approach: They propose a sentiment diversity-aware neural news recommendation approach which can recommend news with more diverse sentiment without performance sacrifices.
Outcome: The proposed approach can improve the sentiment diversity in news recommendation without performance sacrifice.
Neural News Recommendation with Multi-Head Self-Attention (D19-1)

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Challenge: Precisely modeling news and users is critical for news recommendation, and capturing the contexts of words and news is important to learn news and user representations.
Approach: They propose a neural news recommendation approach with multi-head self-attention to model the interactions between words and news and use multi-headed self- attention to capture relatedness between the news.
Outcome: The proposed approach can learn representations from news titles by modeling the interactions between words and users and capture relatedness between the news.
Exploring Question Guidance and Answer Calibration for Visually Grounded Video Question Answering (2024.findings-emnlp)

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Challenge: Existing methods for videoQA lack temporal localization labels, leading to inaccurate localization.
Approach: They propose a Question-Guided and Answer-Calibrated TRansformer which guides and calibrates localization using question and option texts without localization labels.
Outcome: The proposed model achieves comparable accuracy to large-scale pretrained models and leads in localization aspects.
RoTBench: A Multi-Level Benchmark for Evaluating the Robustness of Large Language Models in Tool Learning (2024.emnlp-main)

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Challenge: Current research emphasizes LLMs’ capacity to utilize tools in well-structured environments while overlooking their stability when confronted with the inevitable noise of the real world.
Approach: They propose a multi-level benchmark to evaluate the robustness of large language models in tool learning by establishing five external environments with varying levels of noise.
Outcome: The proposed model outperforms the GPT-4 model in tool learning in three critical phases: tool selection, parameter identification, and content filling.
Event Causality Identification via Derivative Prompt Joint Learning (2022.coling-1)

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Challenge: Existing methods for event causality identification lack annotated data, and they lack the ability to identify explicit and implicit causality.
Approach: They propose a derivative prompt joint learning model which leverages potential causal knowledge in the pre-trained language model to tackle the data scarcity problem.
Outcome: The proposed model can identify explicit and implicit causality on two benchmark datasets and it has great advantages over previous methods.
Neuro-Symbolic Query Compiler (2025.findings-acl)

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Challenge: Retrieval-Augmented Generation (RAG) systems are limited in their ability to process information in open-source environments.
Approach: They propose a neuro-symbolic framework inspired by linguistic grammar rules and compiler design to formalize complex queries using a minimal yet sufficient Backus-Naur Form grammar.
Outcome: The proposed framework is based on a backus-naur form grammar and compiler design that maintains completeness while minimizing redundancy.
Memory-efficient Temporal Moment Localization in Long Videos (2023.eacl-main)

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Challenge: Temporal Moment Localization is a multi-modal task that requires understanding the temporal relationships in the entire input video.
Approach: They propose a stochastic sampling module that can process long videos at a constant memory footprint.
Outcome: The proposed model can process videos as long as 18 minutes at a constant memory footprint and achieves faster and faster results than competing models.
ChartMind: A Comprehensive Benchmark for Complex Real-world Multimodal Chart Question Answering (2025.emnlp-main)

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Challenge: Chart question answering (CQA) is a multimodal task for evaluating the reasoning capabilities of vision-language models.
Approach: They propose a chart question answering benchmark that incorporates multilingual contexts and supports open-domain textual outputs.
Outcome: The proposed framework outperforms the previous three common CQA paradigms: instruction-following, OCR-enhanced, and chain-of-thought.
A Knowledge-Aware Sequence-to-Tree Network for Math Word Problem Solving (2020.emnlp-main)

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Challenge: Existing methods for solving math word problems ignore background common-sense knowledge . a novel knowledge-aware sequence-to-tree (KA-S2T) network incorporates external knowledge and global expression information.
Approach: They propose a knowledge-aware sequence-to-tree network that incorporates external knowledge and global expression information into the problem.
Outcome: The proposed model can achieve better performance than previous models on a Math23K dataset.
Measuring Human Contribution in AI-Assisted Content Generation (2026.acl-long)

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Challenge: generative AI has created a new way to generate content with humans . varying degrees of human contribution in content generation poses significant challenges for the delineation of originality .
Approach: They propose a framework to measure human contribution in AI-assisted content generation by calculating mutual information between human input and AI-aided output relative to self-information of AI-assist output.
Outcome: The proposed measure discriminates between varying degrees of human contribution across multiple creative domains and is validated in real-world applications.
UniDrop: A Simple yet Effective Technique to Improve Transformer without Extra Cost (2021.naacl-main)

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Challenge: Existing approaches to improve the performance of natural language processing models are over-parameterized and overfitted.
Approach: They propose an approach to integrate dropout techniques into the training of Transformer models.
Outcome: The proposed approach can achieve 1.5 BLEU improvement on IWSLT14 translation tasks and better accuracy for the classification even using strong pre-trained RoBERTa as backbone.
A Survey of Inductive Reasoning for Large Language Models (2026.acl-long)

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Challenge: Inductive reasoning is an important task for large language models (LLMs).
Approach: They propose a survey of inductive reasoning for large language models . they categorize methods into three main areas: post-training enhancement, test-time exploration, and data augmentation.
Outcome: The proposed method improves inductive reasoning in large language models.
PASUM: A Pre-training Architecture for Social Media User Modeling Based on Text Graph (2024.lrec-main)

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Challenge: Existing studies have incorporated different digital traces to better learn the representations of social media users, limited by overloaded text information and hard-to-collect social network information.
Approach: They propose a Pre-training Architecture for Social Media User Modeling based on Text Graph and combine microblogs to represent social media users based upon the text graph model.
Outcome: The proposed framework can represent users based on text even without social network information on microblogs.
HealthCards: Exploring Text-to-Image Generation as Visual Aids for Healthcare Knowledge Democratizing and Education (2025.emnlp-main)

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Challenge: Text-to-image (T2I) generation has the potential to advance knowledge democratization and education.
Approach: They explore ways to harness T2I models for generating health knowledge flashcards . they curated a high-quality healthcare knowledge flash card dataset .
Outcome: The proposed models can generate health knowledge flashcards with appealing images . the results show that the open-source models can be fine tuned to generate health content .
SMR: State Memory Replay for Long Sequence Modeling (2024.findings-acl)

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Challenge: Existing state space models (SSMs) address non-uniform sampling, but their recursive structures impede efficient SSM computation via convolution.
Approach: They propose a plug-and-play mechanism to solve the Non-Stable State problem by adjusting input sequences with early memories.
Outcome: The proposed method overcomes the non-uniform sample processing problem . it can achieve Sampling Step Adaptation (SSA) by adjusting input sequences with early memories.
Towards Economical Inference: Enabling DeepSeek’s Multi-Head Latent Attention in Any Transformer-based LLMs (2025.acl-long)

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Challenge: Multi-head Latent Attention (MLA) is an innovative architecture designed to ensure efficient and economical inference by significantly compressing the Key-Value (KV) cache into a latent vector.
Approach: They propose a data-efficient fine-tuning method for transitioning from MHA to MLA using a latent vector cache.
Outcome: The proposed architecture reduces the KV cache size of Llama2-7B by 92.19%, with only 1% drop in LongBench performance.
MIND: A Large-scale Dataset for News Recommendation (2020.acl-main)

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Challenge: Personalized news recommendation is an important technique for personalized news service.
Approach: They propose to build a large-scale news recommendation dataset from Microsoft News . they demonstrate that news recommendation relies on the quality of news content understanding .
Outcome: The proposed dataset contains 1 million users and more than 160k English news articles, each of which has rich textual content such as title, abstract and body.
Dancing in Chains: Reconciling Instruction Following and Faithfulness in Language Models (2024.emnlp-main)

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Challenge: Modern language models fail to follow human instructions while being faithful . a trade-off exists between instruction following and faithfulness when training LMs .
Approach: They propose a method that relies on Reject-sampling by Self-instruct with Continued Fine-tuning to train LMs to follow human instructions while being faithful.
Outcome: The proposed method outperforms vanilla MTL with high-quality data, but with significantly smaller data.
Can LLMs Evaluate Complex Attribution in QA? Automatic Benchmarking using Knowledge Graphs (2025.acl-long)

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Challenge: Attributed Question Answering (AQA) has attracted wide attention, but there are several limitations in evaluating the attributions.
Approach: They propose a large-scale benchmark containing comprehensive attribution categories . they compare 25 automatic evaluators with human evaluers and tested LLM evalators .
Outcome: The proposed method can compare attributions with subtle differences and provide feedback to improve them.
Mitigating Position Bias in Transformers via Layer-Specific Positional Embedding Scaling (2026.findings-acl)

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Challenge: Existing methods to address the "lost-in-the-middle" problem suffer from high latency or suboptimal hand-crafted scaling strategies.
Approach: They propose a layer-specific positional embedding scaling method that assigns distinct scaling factors to each layer.
Outcome: Experiments show that the proposed method mitigates positional attention bias and delivers consistent improvements across multiple long-context benchmarks.
Rethinking Pragmatics in Large Language Models: Towards Open-Ended Evaluation and Preference Tuning (2024.emnlp-main)

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Challenge: Existing methods to assess social-pragmatic inference in large language models are inadequacy, and preferential tuning is the best approach.
Approach: They propose to use free-form models' responses as a measure to assess social-pragmatic reasoning and advocate for preference optimization over supervised finetuning (SFT).
Outcome: The proposed model outperforms supervised finetuning (SFT) and offers a near-free launch in pragmatic abilities without compromising general capabilities.
Understanding Gender Bias in Knowledge Base Embeddings (2022.acl-long)

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Challenge: Knowledge base (KB) embeddings have been shown to contain gender biases . authors develop two new bias measures to quantify them and trace their origins in KB .
Approach: They propose two ways to quantify gender biases in knowledge base (KB) embeddings . they use the influence function to inspect the contribution of each triple in KB to the overall group bias .
Outcome: The proposed measures are compared with real-world census data to examine gender biases.
Vision-and-Language Navigation: A Survey of Tasks, Methods, and Future Directions (2022.acl-long)

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Challenge: Vision-and-Language Navigation (VLN) is a research topic that is gaining attention in the field of artificial intelligence.
Approach: They propose to build an embodied agent that can communicate with humans in natural language and navigate in real 3D environments.
Outcome: This paper reviews current studies in the emerging field of vision-and-language navigation . it highlights limitations and opportunities for future work .
Posterior-regularized REINFORCE for Instance Selection in Distant Supervision (N19-1)

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Challenge: Existing methods to train unbiased methods such as REINFORCE take time to train.
Approach: They propose to use posterior regularization to integrate domain-specific rules in instance selection using REINFORCE to improve the performance of the relation classifier trained on cleaned distant supervision datasets.
Outcome: The proposed method improves the performance of the relation classifier trained on cleaned distant supervision dataset as well as the efficiency of the REINFORCE training.
Mitigating Hallucinations in VLMs: Enhancing Visual Attention via Head-Wise Perturbation (2026.findings-acl)

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Challenge: Vision–Language Models (VLMs) have demonstrated strong capabilities in tasks that require joint understanding of text and images.
Approach: They propose a strategy that incorporates head-wise attention perturbation via continuous multiplicative noise coupled with a visual-guided loss focused on vision-sensitive text tokens to promote a more balanced attention distribution.
Outcome: The proposed approach outperforms baseline models on three benchmarks and consistently outperformed the baseline model.
No Free Lunch: Retrieval-Augmented Generation Undermines Fairness in LLMs, Even for Vigilant Users (2025.findings-emnlp)

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Challenge: Retrieval-augmented generation is widely adopted for its effectiveness and cost-efficiency in mitigating hallucinations.
Approach: They propose a practical three-level threat model from the perspective of user fairness awareness.
Outcome: The proposed model shows that RAG can undermine fairness alignment without fine-tuning or retraining.
Golden Touchstone: A Comprehensive Bilingual Benchmark for Evaluating Financial Large Language Models (2025.findings-emnlp)

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Challenge: Existing financial benchmarks suffer from limited language and task coverage, low-quality datasets, and inadequate adaptability for LLM evaluation.
Approach: They propose a bilingual benchmark for financial LLMs that assesses models’ language understanding and generation capabilities.
Outcome: The proposed bilingual benchmark assesses models’ language understanding and generation capabilities.
GoViG: Goal-Conditioned Visual Navigation Instruction Generation via Multimodal Reasoning (2026.findings-acl)

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Challenge: Current methods for instruction generation depend on privileged inputs such as semantic maps, landmark annotations, and panoramic views.
Approach: They propose a task that generates coherent navigation instructions from egocentric visual observations.
Outcome: The proposed task generates coherent navigation instructions from egocentric visual data . the proposed task improves performance over state-of-the-art methods in BLEU-4 and CIDEr scores .
TextFlint: Unified Multilingual Robustness Evaluation Toolkit for Natural Language Processing (2021.acl-demo)

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Challenge: Existing approaches to textual robustness evaluation focus on slightly modifying the input data, which maintains the original meaning and results in a different prediction.
Approach: They propose a multilingual robustness evaluation toolkit for NLP that integrates universal text transformations, task-specific transformations and adversarial attack.
Outcome: The toolkit includes universal text transformation, task-specific transformation, adversarial attack, subpopulation, and their combinations to provide comprehensive robustness analyses.
Named Entity Recognition in Multi-level Contexts (2020.aacl-main)

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Challenge: Existing methods for named entity recognition are unsatisfactory for recognizing entities in limited or ambiguous sentence-level contexts.
Approach: They propose a framework to incorporate multi-level contexts for named entity recognition using TagLM as a baseline model and an auxiliary task to mine word-level contextual information.
Outcome: The proposed framework is based on a set of sentence-level contexts and a document-level task to mine word-level contextual information.
Dolphin: Document Image Parsing via Heterogeneous Anchor Prompting (2025.findings-acl)

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Challenge: Current document image parsing solutions rely on specialized models or generate content autoregressively.
Approach: They propose a multimodal document image parsing model that integrates specialized models with autogeneous content generation.
Outcome: The proposed model achieves state-of-the-art performance across diverse page-level and element-level settings while ensuring superior efficiency.
NewsBERT: Distilling Pre-trained Language Model for Intelligent News Application (2021.findings-emnlp)

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Challenge: Existing language models are pre-trained and distilled on general corpus like Wikipedia, which has gaps with the news domain and may be suboptimal for news intelligence.
Approach: They propose a method to distill existing language models on Wikipedia to enable efficient news intelligence.
Outcome: The proposed model can be used to build and test a news intelligence application on Wikipedia and Wikipedia.
Few-shot Joint Multimodal Aspect-Sentiment Analysis Based on Generative Multimodal Prompt (2023.findings-acl)

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Challenge: Existing studies require massive labeled data to train models for multimodal data analysis.
Approach: They propose a novel multimodal prompt model that captures specific aspect terms in a few-shot scenario.
Outcome: The proposed model outperforms baselines on two MABSA-related tasks on a few-shot dataset.
Rhombus: Incentivizing Coordination in Parallel Thinking through Reinforcement Learning (2026.findings-acl)

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Challenge: Parallel thinking is a promising avenue for scaling test-time compute in Large Language Models . however, coordinating the exploration and aggregation stages remains challenging .
Approach: They propose a parallel thinking framework that explicitly incentivizes coordination between components via end-to-end reinforcement learning.
Outcome: The proposed framework improves accuracy by 6.0% over long chain-of-thought baselines while reducing wall-clock latency by 39.4% under matched token budgets.

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