Papers by Qi Zhao

115 papers
Towards Explainable Computerized Adaptive Testing with Large Language Model (2024.findings-emnlp)

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Challenge: Existing methods focus on minimizing the number of questions required to assess ability, lacking clear and reliable explanations for the question selection process.
Approach: They propose to use large language models to enhance computer adaptive testing (CAT) by providing human-like interpretability and explanations.
Outcome: The proposed agent-based CAT performs comparably or superior to traditional CAT methods in accuracy and significantly improves student trust and satisfaction.
Neural Topic Modeling with Large Language Models in the Loop (2025.acl-long)

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Challenge: Large Language Models (LLMs) have demonstrated promising capabilities in topic discovery, but their direct application to topic modeling suffers from issues such as incomplete topic coverage, misalignment of topics, and inefficiency.
Approach: They propose a novel LLM-in-the-loop framework that integrates Large Language Models with Neural Topic Models (NTMs) global topics and document representations are learned through the NTM, while an LLM refines these topics using an Optimal Transport (OT)-based alignment objective.
Outcome: The proposed framework improves topic interpretability while preserving the efficiency of existing NTMs.
RE-Matching: A Fine-Grained Semantic Matching Method for Zero-Shot Relation Extraction (2023.acl-long)

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Challenge: Existing methods for zero-shot relation extraction lack explicit modeling of matching pattern . et al. (2018) show that our method achieves higher matching accuracy and faster inference speed .
Approach: They propose a fine-grained semantic matching method tailored for zero-shot relation extraction . they decompose sentence-level similarity score into entity matching score and context matching score .
Outcome: The proposed method achieves higher matching accuracy and faster inference speed than state-of-the-art methods.
Generalizable Cross-Lingual Cognitive Distortion Detection with Standardized Annotations and Multi-Task Learning (2025.findings-acl)

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Challenge: Existing studies on cognitive distortion have limited generalizability and performance of models in large-scale and cross-linguistic contexts.
Approach: They propose a multi-task learning model based on teacher student architecture solution which improves generalization performance.
Outcome: The proposed model improves generalizability and interpretability of the proposed model.
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 .
CRITICTOOL: Evaluating Self-Critique Capabilities of Large Language Models in Tool-Calling Error Scenarios (2025.emnlp-main)

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Challenge: a number of tools are used to perform complex tasks, but the tool utilization process can cause errors.
Approach: They propose a critique evaluation benchmark for tool learning that analyzes function-calling errors on tool evaluation benchmarks.
Outcome: The proposed critique evaluation benchmark holds diverse tool-use errors with varying complexities, which better reflects real-world scenarios.
MuTIS: Enhancing Reasoning Efficiency through Multi Turn Intervention Sampling in Reinforcement Learning (2025.emnlp-main)

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Challenge: Existing methods for training large reasoning models with long chain-of-thought (CoT) are limited by the number of parameters and the complexity of the model.
Approach: They propose a framework that leverages multi-turn interventions to produce concise reasoning chains and demonstrates strong scalability.
Outcome: The proposed framework breaks the accuracy-efficiency trade-off by producing concise reasoning chains and demonstrating strong scalability on 7B models.
FOLIO: Natural Language Reasoning with First-Order Logic (2024.emnlp-main)

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Challenge: Existing benchmarks for logical reasoning in large language models lack language naturalness or limited complexity.
Approach: They propose to use first-order logic annotations to evaluate logical reasoning capabilities of large language models.
Outcome: The proposed dataset evaluates the FOL reasoning ability of supervised fine-tuning on medium-sized language models.
A Goal Without a Plan Is Just a Wish: Efficient and Effective Global Planner Training for Long-Horizon Agent Tasks (2026.acl-long)

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Challenge: Recent advances in large language models (LLMs) have leapt from static chatbots to versatile agents that tackle complex tasks such as science experiments.
Approach: They propose a plan-and-execute framework and propose 'EAGLET' to enhance the executor agent's planning abilities without human effort.
Outcome: The proposed method outperforms existing methods on three long-horizon tasks and reduces training costs by 8 compared to baselines.
Argue with Me Tersely: Towards Sentence-Level Counter-Argument Generation (2023.emnlp-main)

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Challenge: Existing work describes paragraph-level counter-argument generation task as paragraph-based . however, sentence-level generation can be quite different due to its unique constraints and brevity-focused challenges.
Approach: They propose a benchmark framework for sentence-level counter-argument generation . they use an annotated debate forum dataset to generate high-quality counter-argments .
Outcome: The proposed framework and evaluator are competitive in counter-argument generation tasks.
EPO: Hierarchical LLM Agents with Environment Preference Optimization (2024.emnlp-main)

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Challenge: Long-horizon decision-making tasks require extensive planning over multiple steps, maintaining coherence and goal orientation, which is difficult for LLMs that are typically designed for more immediate and localized predictions.
Approach: They propose a hierarchical framework that decomposes complex tasks into manageable subgoals, utilizing separate LLMs for subgoal prediction and low-level action generation.
Outcome: The proposed framework achieves first place on the ALFRED public leaderboard and demonstrates its potential to improve long-horizon decision-making in diverse environments.
Unleashing the Power of Language Models in Text-Attributed Graph (2023.findings-emnlp)

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Challenge: Existing studies on graph learning on text-attributed graphs have been limited by memory cost and underutilization of relationships between nodes and words.
Approach: They propose a Node Representation Update Pre-training Architecture based on Co-modeling text and graph to learn representations of papers and words simultaneously.
Outcome: The proposed model outperforms baselines on the ogbn-arxiv benchmark dataset.
Exploring the Compositional Deficiency of Large Language Models in Mathematical Reasoning Through Trap Problems (2024.emnlp-main)

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Challenge: Current LLMs lack systematic compositionality, and therefore cannot serve as reliable cognitive models.
Approach: They propose to introduce logical traps into the original problems of MATH and GSM8K to investigate the compositionality of large language models in mathematical reasoning.
Outcome: The proposed model can generate infinite combinations from finite learned components.
Bit-Flip Error Resilience in LLMs: A Comprehensive Analysis and Defense Framework (2025.emnlp-main)

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Challenge: Bit-flip errors (BFEs) are hardware faults where individual bits in memory or processing units are unintentionally flipped.
Approach: They propose a novel defense strategy to mitigate bit-flip errors (BFEs) they propose bfe protection and a self-correction mechanism to minimize performance degradation .
Outcome: The proposed defense strategy minimizes performance degradation while significantly improving robustness against BFEs.
FaithLens: Detecting and Explaining Faithfulness Hallucination (2026.findings-acl)

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Challenge: Recent progress in large language models (LLMs) has revolutionized text generation.
Approach: They propose a faithfulness hallucination detection model that can provide binary predictions and corresponding explanations to improve trustworthiness.
Outcome: The proposed model outperforms advanced models on 12 diverse tasks.
Code-Switching Information Retrieval: Benchmarks, Analysis, and the Limits of Current Retrievers (2026.findings-acl)

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Challenge: a new study examines the performance of code-switching IR in monolingual contexts . code-witching is a pervasive linguistic phenomenon in global communication .
Approach: They propose a benchmark to evaluate code-switching IR in monolingual contexts . they propose CS-MTEB, which measures performance declines of up to 27% .
Outcome: The proposed benchmark shows that code-switching performance is degraded by 27% . the proposed benchmark is based on a dataset of mixed-language queries .
Two Heads Are Better Than One: Improving Fake News Video Detection by Correlating with Neighbors (2023.findings-acl)

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Challenge: Existing frameworks for detecting fake news videos are limited . a new approach is proposed to integrate neighborhood information of new videos .
Approach: They propose a framework for automatically detecting fake news videos . it integrates neighborhood relationship of new videos belonging to same event .
Outcome: The proposed framework improves performance of existing detectors and graph aggregation and debunking rectification modules.
PreP-OCR: A Complete Pipeline for Document Image Restoration and Enhanced OCR Accuracy (2025.acl-long)

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Challenge: Existing pipelines that combine document image restoration with semantic-aware post-OCR correction can improve text extraction from degraded images.
Approach: They propose a two-stage pipeline that combines document image restoration with semantic-aware post-OCR correction to enhance both visual clarity and textual consistency.
Outcome: The proposed pipeline reduces character error rates by 63.9-70.3% on 13,831 pages of real historical documents in English, French, and Spanish compared to OCR on raw images.
ConKI: Contrastive Knowledge Injection for Multimodal Sentiment Analysis (2023.findings-acl)

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Challenge: Existing methods for multimodal sentiment analysis focus on general knowledge, which is inadequate to identify specific sentiments across modalities.
Approach: They propose a method where specific-knowledge representations for each modality can be learned together with general knowledge representations via knowledge injection based on an adapter architecture.
Outcome: The proposed method outperforms all prior methods on three popular benchmarks on multimodal sentiment analysis metrics.
Inductive Relation Inference of Knowledge Graph Enhanced by Ontology Information (2023.findings-emnlp)

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Challenge: Existing methods to inference knowledge graphs lack ontology information, which is often too sparse.
Approach: They propose a knowledge graph inductive inference method that fuses ontology information to learn the semantic information of entities.
Outcome: The proposed method outperforms large language models like ChatGPT on two benchmark datasets and improves the MRR metrics by 15.4% and 44.1%, respectively.
PairCoder: Pair Programming-Inspired Two-Agent Collaboration for Code Generation (2026.findings-acl)

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Challenge: Existing multi agent frameworks for large language models are brittle on code generation tasks.
Approach: They propose a framework that brings pair programming to autonomous LLM collaboration.
Outcome: Using PairCoder, large language models achieve better results on code generation tasks and reduce token usage by 40% to 70% on eight representative backbones.
OpenRT: An Open-source Framework for Reasoning Over Tabular Data (2023.acl-demo)

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Challenge: Existing table pre-training methods are benchmarked on a limited number of datasets with varying configurations, resulting in a lack of unified, standardized, fair, and comprehensive comparison between methods.
Approach: They propose to use OpenRT to reproduce existing table pre-training models and develop new models quickly.
Outcome: The proposed framework reproduces existing table pre-training models and compares them against four question answering, one fact checking, and one faithful text generation datasets.
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 .
P-FOLIO: Evaluating and Improving Logical Reasoning with Abundant Human-Written Reasoning Chains (2024.findings-emnlp)

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Challenge: Existing methods on understanding the capabilities of LLMs in logical reasoning rely on binary entailment classification or synthetically derived rationales.
Approach: They propose to annotate a human-annotated dataset consisting of diverse and complex reasoning chains for a set of realistic logical reasoning stories also written by humans.
Outcome: The proposed model outperforms existing methods on understanding the capabilities of LLMs in logical reasoning by 10% or more.
MTVQA: Benchmarking Multilingual Text-Centric Visual Question Answering (2025.findings-acl)

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Challenge: Text-Centric Visual Question Answering (TEC-VQA) is a text-centric visual task understanding tool.
Approach: They introduce a benchmark that features human expert annotations across 9 languages . they prioritize the text in question-answer pairs while disregarding visual text in images .
Outcome: The proposed benchmarks prioritize the text in question-answer pairs while disregarding visual text in images.
ChartCoder: Advancing Multimodal Large Language Model for Chart-to-Code Generation (2025.acl-long)

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Challenge: Existing open-source MLLMs fail to fully capture dense information embedded in charts . current models still face significant challenges in understanding and analyzing visual tasks such as captioning and question answering.
Approach: They propose a chart-to-code MLLM which leverages Code LLMs as the language backbone to enhance the executability of the generated code.
Outcome: The proposed model surpasses existing open-source models on chart-to-code benchmarks with only 7B parameters and provides lossless representations that contain all critical details.
Metacognitive Self-Correction for Multi-Agent System via Prototype-Guided Next-Execution Reconstruction (2026.findings-acl)

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Challenge: Large Language Model based multi-agent systems (MAS) excel at collaborative problem solving but remain brittle to cascading errors.
Approach: They propose a metacognitive framework that enables step-level error detection and self-correction in Large Language Model based multi-agent systems (MAS) .
Outcome: The proposed framework outperforms baselines on the Who When benchmark and delivers consistent gains on AgentErrorBench.
OctoBench: Benchmarking Scaffold-Aware Instruction Following in Repository-Grounded Agentic Coding (2026.acl-long)

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Challenge: coding scaffolds that follow heterogeneous instructions remain under-examined in software engineering . coding models are capable software agents, but their ability to follow constraints remains under-explored .
Approach: They introduce OctoBench, which benchmarks scaffold-aware instruction following in agentic coding.
Outcome: The proposed benchmark aims to accelerate the development of more scaffold-aware agents.
ChatHLS: Towards Systematic Design Automation and Optimization for High-Level Synthesis (2026.acl-long)

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Challenge: High-Level Synthesis (HLS) is a hardware design tool that can be used to design hardware from C-like languages, but its widespread adoption is limited by strict coding constraints and design-specific optimizations.
Approach: They propose a multi-agent HLS design framework that leverages specialized LLMs for automated debugging and directive tuning.
Outcome: The proposed framework outperforms Gemini-3-pro in debugging and speedups across various HLS kernels and neural network accelerators.
To Copy Rather Than Memorize: A Vertical Learning Paradigm for Knowledge Graph Completion (2023.acl-long)

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Challenge: Existing methods for embedding knowledge graphs implicitly memorize relation rules to infer missing links, but they are difficult to memorize due to the inherent deficiencies of such implicit memorization strategy.
Approach: They propose a vertical learning paradigm that allows to explicitly copy target information from related factual triples for more accurate prediction.
Outcome: The proposed model improves generalization ability and makes distant link prediction significantly easier.
MentalGLM Series: Explainable Large Language Models for Mental Health Analysis on Chinese Social Media (2025.emnlp-main)

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Challenge: Social media is a key platform for emotional expression, yet deep learning lacks flexibility and interpretability.
Approach: They propose to use Chinese social media to train interpretable mental health instruction datasets to test models' ability to explain their decisions.
Outcome: The proposed models outperform deep learning and LLMs on three mental health downstream tasks and demonstrate their potential for clinical applications.
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.
Faster In-Context Learning for LLMs via N-Gram Trie Speculative Decoding (2025.emnlp-main)

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Challenge: In-Context Learning (ICL) is a key method in prompt engineering, but its long retrieved contexts and limited token throughput will slow reasoning speeds.
Approach: They propose a method that leverages the overlap between context and model output to generate drafts from the context.
Outcome: The proposed method achieves the highest mean speedup on Vicuna-7B, Llama2-7B-Chat, and Llma3-8B-Instruct tasks.
Parallelism and Generation Order in Masked Diffusion Language Models: Limits Today, Potential Tomorrow (2026.findings-acl)

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Challenge: Autoregressive (AR) language models dominate modern natural language processing due to strong likelihood-based training objectives and reliable left-to-right decoding.
Approach: They characterize MDLM behavior along two dimensions: parallelism strength and generation order . authors propose a Generate-then-Edit paradigm that mitigates dependency loss .
Outcome: The proposed model improves on tasks that require "backward information" the Generate-then-Edit paradigm improves parallel decoding efficiency while reducing dependency loss.
ReasTAP: Injecting Table Reasoning Skills During Pre-training via Synthetic Reasoning Examples (2022.emnlp-main)

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Challenge: Existing models with table-specific architectures and pre-training methods perform well on understanding table structures but lack table reasoning skills.
Approach: They propose to pre-train tables with table reasoning skills without complex architectures . they define 7 table reasoning skill, and then pre-teach them to generate tables .
Outcome: The proposed model improves on four tasks and is available on github.
Towards Interpretable Tabular Reasoning: Enhancing LLM Reasoning on Tabular Data with Pre-Constructed Logic Graph (2026.acl-long)

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Challenge: Tabular data is used in fields such as finance and healthcare due to its heterogeneity and complexity.
Approach: They propose a Logic-Graph-Enhanced LLM Reasoning framework that integrates the strengths of tree-based models and LLMs to improve their interpretability.
Outcome: The proposed framework outperforms tree-based models and state-of-the-art LLMs on tabular prediction tasks, achieving superior accuracy and interpretability.
RECOST: External Knowledge Guided Data-efficient Instruction Tuning (2024.findings-acl)

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Challenge: Considering the high computing power overhead, data-efficient instruction tuning is proposed to reduce the training data size.
Approach: They propose a framework to improve instruction tuning by integrating external knowledge into a single pipeline.
Outcome: The proposed method achieves better results with only 1% of the full dataset.
D.Va: Validate Your Demonstration First Before You Use It (2025.acl-long)

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Challenge: In-context learning (ICL) heavily relies on selecting effective demonstrations to achieve outputs that better align with the expected results.
Approach: They propose a method which integrates a demonstration validation perspective into this field and integrates it into the learning paradigm.
Outcome: The proposed method surpasses all retrieval-based in-context learning techniques across both natural language understanding (NLU) and natural language generation (NLG) tasks.
Leveraging Argumentation Knowledge Graph for Interactive Argument Pair Identification (2021.findings-acl)

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Challenge: Existing researches focus on sentence matching but the interaction of opinions requires reasoning of knowledge, which is beyond textual information.
Approach: They propose to leverage external knowledge to enhance the identification of interactive argument pairs by analyzing the discussion thread of the target topic in an online forum.
Outcome: The proposed model achieves state-of-the-art in the benchmark dataset.
WarriorCoder: Learning from Expert Battles to Augment Code Large Language Models (2025.acl-long)

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Challenge: Recent code large language models have demonstrated impressive performance on code-related tasks.
Approach: They propose a paradigm that learns from expert battles to address these limitations . they create an arena where leading LLMs challenge each other with evaluations .
Outcome: The proposed model improves on existing models by leveraging expert battles . it achieves state-of-the-art performance even without relying on proprietary models .
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.
Fine-Grained Data Ordering Improves Fine-Tuning for Large Language Models (2026.findings-acl)

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Challenge: Prior work focused on data preprocessing, focusing on filtering and cleaning data . a study aimed to improve fine-grained scheduling of data order in epochs .
Approach: They propose a fine-grained scheduling method of data order in epochs to fill this gap . they define data difficulty based on relevance between data and model .
Outcome: The proposed method improves on pre-training and small-scale fine-tuning experiments 2.4% over baselines.
LongHeads: Multi-Head Attention is Secretly a Long Context Processor (2024.findings-emnlp)

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Challenge: Large language models struggle to process lengthy inputs due to limited length generalization and attention’s quadratic computational demands.
Approach: They propose a training-free framework that allows each head to attend to important context chunks instead of allowing each head a full sentence .
Outcome: The proposed framework unlocks multi-head attention's untapped potential by allowing each head to attend to important context chunks instead of the full sentence.
Beyond Quantity: Trajectory Diversity Scaling for Code Agents (2026.findings-acl)

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Challenge: Code large language models (LLMs) are becoming tool-interactive agents . quantity-centric scaling exhibits an early bottleneck that underutilizes trajectory data . et al.: a new approach to scale trajectory diversity improves tool-use generalization .
Approach: They propose a Trajectory Diversity Scaling-based data synthesis framework for code agents that scales performance through diversity rather than raw volume.
Outcome: Experiments on general tool-use benchmarks and code agent tasks show that TDScaling improves tool-user generalization and inherent coding proficiency.
LONGAGENT: Achieving Question Answering for 128k-Token-Long Documents through Multi-Agent Collaboration (2024.emnlp-main)

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Challenge: Large language models (LLMs) have been successful in understanding language and processing text, but their cost prohibits their practical applications.
Approach: They propose a multi-agent collaboration method that breaks down lengthy documents into smaller, more manageable chunks and organizes the member agents to read their assigned chunks.
Outcome: The proposed method achieves 16.42% and 1.63% accuracy gains over existing models on single-hop and multi-hop QA settings.
Attribution-Based Analysis and Optimization of Modular Agentic Workflows (2026.findings-acl)

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Challenge: Large Language Models (LLMs) have driven the rise of agentic workflows . yet, how can we attribute performance gains to individual upgrades and their interactions?
Approach: They propose a game-theoretic framework that models component upgrades as players and evaluates component coalitions to compute Shapley values.
Outcome: The proposed framework provides interaction-aware attribution and recommendation for model allocation under a fixed workflow structure.
Beyond Boundaries: Learning a Universal Entity Taxonomy across Datasets and Languages for Open Named Entity Recognition (2025.coling-main)

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Challenge: Current Large Language Models struggle with complex entity taxonomies in open domains and lack NER capabilities.
Approach: They propose a dataset to guide LLMs' generalization in Open NER under a universal entity taxonomy.
Outcome: The proposed model outperforms GPT-4 in 3 out-of-domain benchmarks across 15 datasets and 6 languages.
RePair: Automated Program Repair with Process-based Feedback (2024.findings-acl)

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Challenge: Commercial-scale language models (LMs) have taken APR to unprecedented levels, but they are limited by parameters and humans interact with them through explicit prompts.
Approach: They propose a method that utilizes process supervision to improve program repair by allowing users to input feedback from compilers and test cases.
Outcome: The proposed method outperforms large outcome-based generation methods and is inspired by strategies used in programming competitions.
Adversarial Knowledge Stimulated Contrastive Prompting for Few-shot Language Learners (2023.findings-acl)

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Challenge: Prompt-based fine-tuning has boosted performance of Pre-trained language models on few-shot Natural Language Understanding (NLU) tasks by employing task-specific prompts.
Approach: They propose a Cloze-driven prompt framework for prompt tuning that implicitly stimulates knowledge from pre-trained language models.
Outcome: The proposed framework outperforms state-of-the-art for prompt-based fine-tuning on few-shot NLU tasks.
Toward Secure Tuning: Mitigating Security Risks from Instruction Fine-Tuning (2026.acl-long)

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Challenge: Instruction Fine-Tuning (IFT) has emerged as a critical technique for customizing Large Language Models (LLMs) however, recent studies have revealed that IFT can compromise the built-in security mechanisms of LLMs, posing significant security risks.
Approach: They propose a method that shifts learning burden onto security-robust parameters and propose 'warm-up' phase that preferentially trains Mods_Rob to learn low-level features with minimal security risk.
Outcome: The proposed method reduces security risks without sacrificing performance gains across knowledge-intensive datasets.
MECoT: Markov Emotional Chain-of-Thought for Personality-Consistent Role-Playing (2025.findings-acl)

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Challenge: Existing Large Language Models struggle to maintain emotionally consistent and psychologically plausible character personalities.
Approach: They propose a framework that enhances LLMs’ ability to generate authentic personality-driven dialogues through stochastic emotional transitions.
Outcome: The proposed framework achieves 93.3% emotional accuracy on the RAPD dataset and significantly outperforms existing approaches.
PRIME: A Process-Outcome Alignment Benchmark for Verifiable Reasoning in Mathematics and Engineering (2026.acl-long)

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Challenge: Current outcome-centric verification paradigms neglect potential errors in the derivation process.
Approach: They propose a process-aware RLVR training paradigm utilizing verifiers selected via **PRIME**.
Outcome: The proposed approach outperforms the baseline verification paradigm on AIME24, AIME25, and Beyond-AIME models.
Unveiling Linguistic Regions in Large Language Models (2024.acl-long)

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Challenge: Existing studies on how LLMs achieve cross-lingual alignment and generalization have not explored the intrinsic mechanisms of how they achieve crosslingual alignment.
Approach: They propose to remove a core region that corresponds to linguistic competence and set parameters to zero to reduce performance across 30 different languages.
Outcome: The proposed model can be used to perform tasks requiring abstract knowledge and reasoning in complex languages.
Tag-grounded Visual Instruction Tuning with Retrieval Augmentation (2024.emnlp-main)

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Challenge: Multimodal Large Language Models (MLLMs) have seen remarkable progress in providing general instruction-following ability, but struggle with critical problems when required to provide a detailed and accurate response to a visual instruction.
Approach: They propose to enhance the mapping process by using retrieval-augmented tag tokens, which contain rich object-aware information such as object names and attributes.
Outcome: The proposed model outperforms baselines that share the same language model and training data on 12 benchmarks and shows zero-shot capability when provided with specific datastores.
XQuant: Achieving Ultra-Low Bit KV Cache Quantization with Cross-Layer Compression (2025.emnlp-main)

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Challenge: Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse tasks. however, their extensive memory requirements present significant challenges for deployment in resource-constrained environments.
Approach: They propose a training-free framework that achieves ultra-low equivalent bit-width KV cache quantization.
Outcome: The proposed framework outperforms state-of-the-art methods on TruthfulQA and LongBench.
Read Extensively, Focus Smartly: A Cross-document Semantic Enhancement Method for Visual Documents NER (2022.coling-1)

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Challenge: Existing methods to extract entities from visually-rich documents ignore the inherent multimodality of VRDs and thus the suboptimal results are achieved.
Approach: They propose a multimodal semantic enhancement method that filters redundant information in the current document and a cross-document information awareness technique to enrich the entity-related context.
Outcome: The proposed method outperforms existing methods on two documents understanding benchmarks covering eight languages.
CARE-CR: Context-Aware Routing and Expert Fusion for Multi-Preference Cognitive Restructuring (2026.findings-acl)

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Challenge: Large Language Models (LLMs) offer promising avenues for automated cognitive restructuring in mental health settings, but current approaches lack the adaptability to balance conflicting therapeutic dimensions, such as empathy and rationality.
Approach: They propose a decoupled optimization framework that implements a dimension-guided Monte Carlo tree search to train expert policies specialized for distinct therapeutic attributes rather than relying on a monolithic alignment strategy.
Outcome: The proposed framework achieves consistent improvements over baselines across multiple evaluation dimensions, including diagnostic accuracy, contextual appropriateness, task effectiveness, and overall helpfulness, while enabling controllable cognitive restructuring generation.
Toward Recognizing More Entity Types in NER: An Efficient Implementation using Only Entity Lexicons (2020.findings-emnlp)

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Challenge: Existing named entity recognition systems require large scale labeled data to perform, while annotation of NER data is laborious and time-consuming.
Approach: They propose to adjust an existing named entity recognition system to recognize entity types not defined in the system.
Outcome: The proposed method can be quickly adjusted to a named entity recognition system.
ALPS: Attention Localization and Pruning Strategy for Efficient Adaptation of Large Language Models (2025.findings-acl)

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Challenge: Prior research has focused on optimizing general-purpose large language models to downstream tasks . however, these approaches inherently introduce data dependency, which hinders generalization and reusability.
Approach: They propose an algorithm that localizes the most task-sensitive attention heads and prunes by restricting attention training updates to these heads, thereby reducing alignment costs.
Outcome: The proposed algorithm achieves 2% performance improvement over baselines on three tasks while localizing the most task-sensitive attention heads.
Hi-ArG: Exploring the Integration of Hierarchical Argumentation Graphs in Language Pretraining (2023.emnlp-main)

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Challenge: Recent studies have discussed its capability to assist language models for various applications.
Approach: They propose a structure to organize arguments using the **Hi**erarchical **Ar**gumentation **G**raph (Hi-ArG) and propose two approaches to exploit Hi-AarG, including a text-graph multi-modal model GreaseArR and a framework augmented with graph information.
Outcome: The proposed structure supersedes existing language models on two argumentation tasks while incorporating graph information during further training improves vanilla language models.
AutoReproduce: Automatic AI Experiment Reproduction with Paper Lineage (2026.acl-long)

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Challenge: Efficient reproduction of research papers requires deep domain expertise.
Approach: They propose a framework that systematically mines implicit knowledge from the cited literature to reproduce experimental code in a complete, end-to-end manner.
Outcome: The proposed framework surpasses baselines across all metrics and reproduces experimental code in a complete, end-to-end manner.
DeMAC: Enhancing Multi-Agent Coordination with Dynamic DAG and Manager-Player Feedback (2025.findings-emnlp)

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Challenge: Multi-agent systems (MAS) powered by large language models struggle to adapt to evolving task dependencies and to handle uncertainties.
Approach: They propose a Dynamic Environment-Aware Manager-Player Agents Coordination framework that enhances multi-agent coordination through long-term strategic planning.
Outcome: The proposed framework outperforms traditional reinforcement learning and human-agent collaboration in the Overcooked simulation.
Review-Driven Multi-Label Music Style Classification by Exploiting Style Correlations (N19-1)

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Challenge: Several methods have been proposed for automatic music style classification, but they are limited in two aspects.
Approach: They propose a deep learning approach to automatically learn and exploit style correlations by reviewing music reviews on websites.
Outcome: The proposed approach performs well in capturing style correlations.
AMoPO: Adaptive Multi-objective Preference Optimization without Reward Models and Reference Models (2025.findings-acl)

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Challenge: Existing multi-objective preference alignment methods for large language models face limitations such as auxiliary reward/reference models and computational complexity.
Approach: They propose a framework that achieves dynamic balance across preference dimensions by using dimension-aware generation metrics as implicit rewards.
Outcome: Empirical results show that AMoPO outperforms state-of-the-art methods by 28.5% .
One-Model-Connects-All: A Unified Graph Pre-Training Model for Online Community Modeling (2023.findings-emnlp)

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Challenge: Existing studies on integrating online community to solve social problems have not fully utilized these three components and the relationship among them.
Approach: They propose a framework that simultaneously considers communities, users, and texts and can easily connect with a variety of downstream tasks related to social media.
Outcome: The proposed model can be used to perform violation detection, sentiment analysis, and community recommendation across multiple tasks.
Open Set Relation Extraction via Unknown-Aware Training (2023.acl-long)

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Challenge: Existing supervised relation extraction methods can still misclassify unknown relations into known relations due to the lack of supervision signals.
Approach: They propose a method that regularizes the model by dynamically synthesizing negative instances that can provide the missing supervision signals.
Outcome: The proposed method achieves SOTA unknown relation detection without compromising the classification of known relations.
DAC: A Dynamic Attention-aware Approach for Task-Agnostic Prompt Compression (2025.acl-long)

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Challenge: Existing methods rely on information entropy as the metric to compress lexical units, but ignore attention-critical tokens and information . recent advent of In-Context Learning (ICL), Chain-of-Thought (CoT), and Retrieval Augmented Generation (RAG) technologies has significantly invigorated the landscape of applications based on Large Language Models (LLMs).
Approach: They propose a dynamic attention-aware approach to task-agnostic prompt compression . they integrate entropy and attention information to achieve fine-grained prompt compression.
Outcome: Experiments show that the proposed approach improves across tasks and LLMs.
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%.
DUET: Joint Exploration of User–Item Profiles in Recommendation System (2026.findings-acl)

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Challenge: Existing LLMs are opaque and difficult to interpret, resulting in limited interpretability.
Approach: They propose an interaction-aware profile generator that jointly produces user and item profiles conditioned on both user history and item evidence.
Outcome: The proposed model outperforms baselines on three real-world datasets.
ChartEdit: How Far Are MLLMs From Automating Chart Analysis? Evaluating MLLMs’ Capability via Chart Editing (2025.findings-acl)

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Challenge: Existing evaluations of multimodal large language models rely on limited case studies . however, they lack the ability to generate accurate edits according to the instructions .
Approach: They propose a benchmark for chart editing that includes 1,405 edit instructions applied to 233 real-world charts.
Outcome: The proposed benchmark includes 1,405 diverse editing instructions applied to 233 real-world charts.
RobuT: A Systematic Study of Table QA Robustness Against Human-Annotated Adversarial Perturbations (2023.acl-long)

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Challenge: Existing Table QA models are vulnerable to task-specific perturbations, such as replacing key question entities or shuffling table columns.
Approach: They propose to use large language models to generate adversarial examples to enhance training, which significantly improves the robustness of Table QA models.
Outcome: The proposed model significantly improves on existing Table QA models against human-annotated adversarial perturbations.
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.
LexicalAT: Lexical-Based Adversarial Reinforcement Training for Robust Sentiment Classification (D19-1)

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Challenge: Existing text classification models are fragile and sensitive to simple perturbations.
Approach: They propose a generator-classifier adversarial training approach to improve classification models . they use a large-scale lexical knowledge base to generate attacking examples .
Outcome: The proposed approach outperforms strong baselines and reduces test errors on neural networks.
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.
SAM3-I: Segment Anything with Instructions (2026.acl-long)

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Challenge: Existing methods for concept-level grounding and instruction-level reasoning use coarse representations and iterative mask filtering.
Approach: They propose an instruction-following extension of the Segment Anything Model 3 family that unifies concept-level grounding and instruction-level reasoning within a single segmentation framework.
Outcome: Experiments show that SAM3-I achieves appealing performance across referring and reasoning-based segmentation while maintaining its strong concept recall ability.
AJ-Bench: Benchmarking Agent-as-a-Judge for Environment-Aware Evaluation (2026.findings-acl)

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Challenge: Existing approaches to verify agent behaviors in complex environments rely on rule-based verifiers or LLM-as-a-Judge models.
Approach: They propose a benchmark to evaluate Agent-as-a-Judge across three domains . the benchmark covers search, data systems, and graphical user interfaces - with 155 tasks and 516 trajectories .
Outcome: The proposed benchmark outperforms existing benchmarks in search, data systems, and GUI domains while revealing open challenges in agent-based verification.
Enhancing Large Vision-Language Models with Ultra-Detailed Image Caption Generation (2025.emnlp-main)

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Challenge: Existing pipelines for generating high-quality, ultra-detailed image captions are limited by the scarcity of image caption data.
Approach: They propose a pipeline for generating high-quality, ultra-detailed image captions that integrates both pre-processing and post-processor stages.
Outcome: The proposed pipeline improves LVLMs' perception and cognitive abilities across multiple vision-language benchmarks.
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.
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.
UER: An Open-Source Toolkit for Pre-training Models (D19-3)

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Challenge: Existing work on pre-training models have shown that it is important to use a framework to deploy various pre- training models efficiently.
Approach: They propose an assemble-on-demand pre-training toolkit that assembles pre-trained models on demand and encapsulates them with rich modules.
Outcome: The proposed framework can reproduce state-of-the-art models or develop models that remain unexplored.
Do LLMs Overcome Shortcut Learning? An Evaluation of Shortcut Challenges in Large Language Models (2024.emnlp-main)

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Challenge: Large Language Models (LLMs) have shown remarkable capabilities in various tasks, but may rely on dataset biases as shortcuts for prediction.
Approach: They propose to use a test suite to evaluate the impact of shortcuts on LLMs' performance.
Outcome: The proposed test suite incorporates six shortcut types, five evaluation metrics, and four prompting strategies.
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.
Unveiling the Deficiencies of Pre-trained Text-and-Layout Models in Real-world Visually-rich Document Information Extraction (2026.findings-eacl)

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Challenge: PTLMs have shown remarkable success in multiple information extraction tasks . however, their performance in real-world scenarios falls short of expectations .
Approach: They propose to use an entity-centric dataset to evaluate PTLMs' performance . they find that inadequate annotations in benchmark datasets lead to spurious correlations .
Outcome: The proposed dataset disentangles the falsely-coupled segment and entity annotations that arises from the block-level annotation of FUNSD.
LoFT: Enhancing Faithfulness and Diversity for Table-to-Text Generation via Logic Form Control (2023.eacl-main)

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Challenge: Existing models for LT2T generation focus on surface-level realizations without much logical inference.
Approach: They propose a model that uses logic forms as fact verifiers and content planners to control LT2T generation.
Outcome: Experimental results show that the proposed model addresses unfaithfulness and diversity issues simultaneously.
Modeling Layout Reading Order as Ordering Relations for Visually-rich Document Understanding (2024.emnlp-main)

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Challenge: Existing models of layout reading order do not convey the complete reading order information in the layout.
Approach: They propose to model layout reading order as ordering relations over layout elements . they propose a reading-order-relation-enhancing pipeline to improve model performance .
Outcome: The proposed model outperforms existing models on a visual-rich document dataset and on eight cross-domain VrD-IE/QA tasks without targeted optimization.
Aligning Large Language Models to Follow Instructions and Hallucinate Less via Effective Data Filtering (2025.acl-long)

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Challenge: Existing studies show that training LLMs on data containing unfamiliar knowledge during instruction tuning can encourage hallucinations.
Approach: They propose a framework that measures how familiar the LLM is with instruction data and introduce an expert-aligned reward model to ensure the quality of selected samples.
Outcome: The proposed framework reduces hallucinations while maintaining a competitive ability to follow instructions.
Fin-STAR: Structure-as-Semantics to Resolve Implicitness in Financial Retrieval (2026.findings-acl)

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Challenge: Existing Retrieval-Augmented Generation systems treat structure as a physical navigational skeleton rather than intrinsic semantic knowledge.
Approach: They propose a framework that redefining hierarchy as intrinsic semantics and uses snippets to enrich hierarchical lineage.
Outcome: The proposed framework outperforms state-of-the-art hierarchical and graph-based benchmarks on FinTierQA Gold.
NaturalCodeBench: Examining Coding Performance Mismatch on HumanEval and Natural User Queries (2024.findings-acl)

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Challenge: Large language models (LLMs) generate code for productive activities, but current benchmarks for code synthesis are oriented towards introductory tasks on algorithm and data science.
Approach: They propose a code benchmark to mirror the complexity and variety of scenarios in real-world coding tasks.
Outcome: The proposed benchmark improves on 39 large language models with close HumanEval scores and achieves an efficiency increase of more than 4 times.
RIVAL: Reinforcement Learning with Iterative and Adversarial Optimization for Machine Translation (2025.findings-emnlp)

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Challenge: Using reinforcement learning from human feedback, large language models perform poorly when applied to colloquial subtitle translation tasks.
Approach: They propose an adversarial training framework that iteratively updates the offline reward model and the online LLM to improve training outcomes.
Outcome: The proposed training framework significantly improves upon translation baselines.
Boosting LLM Agents with Recursive Contemplation for Effective Deception Handling (2024.findings-acl)

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Challenge: Recent advances in large language models (LLMs) have led to significant success in using LLMs as agents.
Approach: They propose a cognitive framework that incorporates first-order and second-order perspective transitions into LLMs to enhance their ability to identify and counteract deceptive information.
Outcome: The proposed framework enhances LLMs’ ability to identify and counteract deceptive information without extra fine-tuning and data.
Grammar-Based Code Representation: Is It a Worthy Pursuit for LLMs? (2025.findings-acl)

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Challenge: Existing research demonstrates the effectiveness of grammar-based code representations in small-scale models, showing their ability to reduce syntax errors and enhance performance.
Approach: They develop a series of billion-scale grammar-based code representations that incorporate grammar rules into the code generation process.
Outcome: Experiments on HumanEval and MBPP show that grammar-based representations reduce syntax errors and improve performance even in billion-scale models.
RJE: A Retrieval-Judgment-Exploration Framework for Efficient Knowledge Graph Question Answering with LLMs (2025.emnlp-main)

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Challenge: Knowledge graph question answering (KGQA) aims to answer natural language questions using knowledge graphs.
Approach: They propose a framework that retrieves refined reasoning paths and evaluates their sufficiency.
Outcome: The proposed framework outperforms existing baselines while enabling small open-source LLMs to achieve competitive results without fine-tuning LLM.
Actively Supervised Clustering for Open Relation Extraction (2023.acl-long)

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Challenge: Existing methods for Open Relation Extraction (OpenRE) use a two-stage pipeline, which learns relation representations and assignments in the first stage, then manually labels relation for each cluster.
Approach: They propose a method that performs relation learning and relation labeling simultaneously without a significant increase in human effort.
Outcome: The proposed method improves existing SOTA methods by 13.8% and 10.6% on two datasets.
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 .
Chinese MentalBERT: Domain-Adaptive Pre-training on Social Media for Chinese Mental Health Text Analysis (2024.findings-acl)

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Challenge: Existing models for language analysis are inadequate for specialized domains like psychology.
Approach: They have enriched a Chinese social media database with psychological lexicons to enhance its applicability to psychological text analysis.
Outcome: The proposed model performed better on six public datasets and provided relevant predictions given the masked sentences.
Self-Demos: Eliciting Out-of-Demonstration Generalizability in Large Language Models (2024.findings-naacl)

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Challenge: Existing methods that rely on limited demos and out-of-demonstration (OOD) queries fail when faced with out- of-demotion queries.
Approach: They propose a query-aware prompting method that elicits the inherent generalizability of large language models by query-based demo generation.
Outcome: The proposed method outperforms state-of-the-art methods in the OOD setting and two public math benchmarks.
Improving Pre-trained Language Models with Knowledge Enhancement and Filtering Framework (2025.findings-naacl)

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Challenge: Existing knowledge enhancement techniques for pre-trained language models (PLMs) introduce noisy entity representations.
Approach: They propose a knowledge enhancement filter that integrates external knowledge bases to enhance PLMs' ability to capture entity knowledge.
Outcome: The proposed method achieves the highest F1-score and accuracy while reducing the computational cost by 1.7-2.5x.
A Relation-Oriented Clustering Method for Open Relation Extraction (2021.emnlp-main)

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Challenge: Existing methods for open relation extraction (OpenRE) are designed for predefined relations, which cannot deal with new emerging relations in the real world.
Approach: They propose a relation-oriented clustering model that leverages readily available labeled data to learn a relationship-oriented representation.
Outcome: The proposed model reduces error rate by 29.2% and 15.7% on two datasets compared with current SOTA methods.
SCOPE: Boosting LLM Efficiency with Scoped Position Encoding (2026.acl-long)

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Challenge: Positional encodings are fundamental to Transformers, but explicit methods like RoPE can degrade under length extrapolation and incur extra arithmetic and memory-access overhead.
Approach: They propose a framework that reimagines structured sparsity as an intrinsic position encoding mechanism.
Outcome: The proposed framework reduces the number of attention FLOPs by 8x compared to RoPE on LLaMA-3-8B architectures while reducing training and inference latency.
LeTS: Learning to Think-and-Search via Process-and-Outcome Reward Hybridization (2025.emnlp-main)

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Challenge: Recent research focuses on integrating reasoning capabilities into the realm of retrieval-augmented generation (RAG) via outcome-supervised reinforcement learning (RL).
Approach: They propose a process-level reward module to mitigate the unawareness of intermediate reasoning steps in outcome-level supervision without additional annotation.
Outcome: The proposed framework can boost LLMs’ reasoning ability by integrating external knowledge sources through retrieval-augmented generation (RAG) The proposed model can mitigate the unawareness of intermediate reasoning steps in outcome-level supervision without additional annotation.
GATEAU: Selecting Influential Samples for Long Context Alignment (2025.emnlp-main)

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Challenge: Existing studies have attempted to scale up the available data volume by synthesizing long instruction-following samples, but a lack of a well-defined strategy for ensuring data quality may introduce low-quality samples and restrict the model’s performance.
Approach: They propose a framework to identify influential samples enriched with long-range dependency relations that can be used to align large language models to handle instructions with extremely long contexts.
Outcome: The proposed framework identifies samples with long-range dependency relations and shows that the model trained on these samples exhibits better instruction-following and long-context understanding capabilities.
Stepwise Reasoning Disruption Attack of LLMs (2025.acl-long)

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Challenge: Existing attacks on LLM reasoning are constrained by specific settings or lack of imperceptibility, limiting their feasibility and generalizability.
Approach: They propose a stepwise rEasoning error disruption attack that subtly injects errors into prior reasoning steps to mislead the model into producing incorrect subsequent reasoning and final answers.
Outcome: The proposed attack is compatible with zero-shot and few-shot settings, maintains the natural reasoning flow, and ensures covert execution without modification of the instruction.
QTSumm: Query-Focused Summarization over Tabular Data (2023.emnlp-main)

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Challenge: Existing text generation systems that can provide accurate table summaries can facilitate more efficient access to relevant data insights.
Approach: They propose a query-focused task where text generation models have to perform human-like reasoning and analysis over the given table to generate a tailored table summary.
Outcome: The proposed method improves existing baselines on table-to-text generation and large language models by concatenating generated facts to the model input.
Learn to Relax with Large Language Models: Solving Constraint Optimization Problems via Bidirectional Coevolution (2026.acl-long)

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Challenge: Large Language Model (LLM)-based optimization has shown promise for autonomous problem solving, but most approaches cast LLMs as passive constraint checkers rather than proactive strategy designers.
Approach: They propose an end-to-end Automated Constraint Optimization method that tightly couples operations-research principles of constraint relaxation with LLM reasoning.
Outcome: Extensive experiments on three challenging COP benchmarks validate AutoCO’s consistent effectiveness and superior performance, especially in hard regimes where current methods degrade.
GuideLLM: Exploring LLM-Guided Conversation with Applications in Autobiography Interviewing (2025.naacl-long)

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Challenge: Large Language Models (LLMs) have demonstrated their effectiveness in human-guided dialogues, but tasks in the real world are more complex and require greater autonomy from LLMs.
Approach: They propose to characterize LLM-guided conversation into three fundamental components: Goal Navigation, Context Management, Empathetic Engagement and implement an interviewing environment for the evaluation of LLMs.
Outcome: The proposed LLM outperforms baseline LLMs in interviewing quality and autobiography generation quality.
Loose lips sink ships: Mitigating Length Bias in Reinforcement Learning from Human Feedback (2023.findings-emnlp)

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Challenge: Experimental results prove that language models can learn from human feedback better, irrespective of sequence length . emergence of length bias often induces the model to favor longer outputs .
Approach: They propose to separate reward modeling from the influence of sequence length by using the Product-of-Experts technique.
Outcome: The proposed approach shows that language models perform better regardless of sequence length . the main expert is focused on understanding human intents, while the biased expert targets the identification and capture of length bias.
Representation Learning for Information Extraction from Form-like Documents (2020.acl-main)

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Challenge: Form-like documents like invoices, purchase orders, tax forms and insurance quotes are common in day-to-day business workflows, but current techniques for processing them largely still employ manual effort or brittle and error-prone heuristics for extraction.
Approach: They propose an extraction system that uses knowledge of the types of the target fields to generate extraction candidates and a neural network architecture that learns a dense representation of each candidate based on neighboring words in the document.
Outcome: The proposed system generates extraction candidates based on neighboring words in the document and is interpretable, as shown using loss cases.
FastBERT: a Self-distilling BERT with Adaptive Inference Time (2020.acl-main)

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Challenge: Pre-trained language models like BERT have proven to be highly performant, but are often computationally expensive in many practical scenarios.
Approach: They propose a speed-tunable FastBERT with adaptive inference time that can be flexibly adjusted under varying demands.
Outcome: The proposed model achieves promising results in English and Chinese datasets.
Distill Visual Chart Reasoning Ability from LLMs to MLLMs (2025.findings-emnlp)

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Challenge: a new method for generating chart annotations is proposed to improve visual reasoning in multimodal large language models.
Approach: They propose a code-as-intermediary translation method for distilling visual reasoning abilities from LLMs to MLLMs.
Outcome: The proposed method is cost-effective, efficient and scalable.
Graph-Assisted Large Language Models: A Perspective on Mitigating Intrinsic Limitations (2026.findings-acl)

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Challenge: Large language models exhibit intrinsic limitations such as knowledge cutoff, single-threaded reasoning that hinders finer-grained branch and aggregation, and rigid collaboration mechanisms that struggle to coordinate specialized capabilities.
Approach: They propose a taxonomy spanning *Graph-Assisted Knowledge Augmentation*, *Graph Assisted Reasoning and Planning*, and *Graphed LLM Collaboration*.
Outcome: The proposed models show that graphs can augment and correct LLMs and support dynamic coordination among experts and agents in collaborative settings.
Advancing E-commerce Merchants Telemarketing with Synthetic Data-Driven LLMs (2025.emnlp-industry)

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Challenge: Large Language Models (LLMs) are proving broadly applicable across diverse industries, including e-commerce.
Approach: They propose a hybrid data synthesis framework that unifies the input schema with profile and strategy designed by top sales and extracts them via a Multi-task paradigm.
Outcome: The proposed model reaches the performance level of the top 25% of human sales in terms of the final marketing results.
EvoWiki: Evaluating LLMs on Evolving Knowledge (2025.acl-long)

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Challenge: Existing knowledge evolution benchmarks are static and fail to capture the evolving nature of LLMs and knowledge.
Approach: They propose an evolving dataset that categorizes information into stable, evolved, and uncharted states.
Outcome: The proposed dataset is auto-updatable and enables evaluation of continuously changing knowledge and newly released LLMs.
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.
Navigating the OverKill in Large Language Models (2024.acl-long)

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Challenge: Recent studies have highlighted a tendency among large language models to refuse to answer benign queries.
Approach: They propose a model-agnostic approach to reduce excessive attention to harmful words like ‘kill’ and a method to decode the next-token predictions by contrastive decoding.
Outcome: The proposed approach reduces the refusal rate by 20% while having little impact on safety.
KV-Latent: Dimensional-level KV Cache Reduction with Frequency-aware Rotary Positional Embedding (2025.acl-long)

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Challenge: Large language models (LLMs) based on Transformer Decoders have become the preferred choice for conversational generative AI.
Approach: They propose a paradigm called KV-Latent to reduce the KV cache footprint and improve inference speed by down-sampling the Key-Value vector dimensions into a latent space.
Outcome: The proposed paradigm reduces the KV Cache footprint and improves inference speed with a small amount of extra training, less than 1% of pre-training takes.

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