Papers by Li Miao

81 papers
AMIA: Automatic Masking and Joint Intention Analysis Makes LVLMs Robust Jailbreak Defenders (2025.findings-emnlp)

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Challenge: AMIA is a lightweight, inference-only defense for Large Vision–Language Models . it automatically masks text-irrelevant image patches and conducts joint Intention Analysis .
Approach: AMIA is a lightweight, inference-only defense for large vision–language models . it automatically masks a small set of text-irrelevant image patches to disrupt adversarial perturbations .
Outcome: AMIA improves defense success rates across diverse LVLMs and jailbreak benchmarks . it preserves general utility with only 2% accuracy drop, incurs only modest inference overhead .
Incentivizing In-depth Reasoning over Long Contexts with Process Advantage Shaping (2026.findings-acl)

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Challenge: Reinforcement Learning with Verifiable Rewards (RLVR) has proven effective in enhancing LLMs’ short-context reasoning but falters in long-contemporal scenarios requiring precise grounding and multi-hop reasoning.
Approach: They propose a framework that constructs high-difficulty, multi-hop long-context QA pairs with inherent reasoning chains to overcome this bottleneck.
Outcome: The proposed framework outperforms RLVR baselines and matches frontier LLMs while using far fewer parameters.
WhyAct: Identifying Action Reasons in Lifestyle Vlogs (2021.emnlp-main)

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Challenge: Existing systems for action recognition rely on pattern memorization and do not understand the action.
Approach: They propose a multimodal model that leverages visual and textual information to automatically infer the reasons corresponding to an action presented in the video.
Outcome: The proposed model leverages visual and textual information to automatically infer the reasons corresponding to an action presented in the video.
Penetrating Linguistic Disguises: A Slang-aware Label-Aligned Framework for Fine-Grained Toxicity Extraction in Chinese Hate Speech Detection (2026.findings-acl)

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Challenge: Flexible word boundaries and linguistic obfuscation, particularly slang, challenge precise span-level hate speech detection in Chinese.
Approach: They propose a Slang-aware Label-Aligned Framework that maps slang to explicit hate semantics and uses task-specific branches to mitigate feature interference.
Outcome: The proposed framework reduces ambiguity by mapping obscure slang to explicit hate semantics.
Latent-Optimized Adversarial Neural Transfer for Sarcasm Detection (2021.naacl-main)

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Challenge: Existing datasets for sarcasm detection are limited due to the difficulty in acquiring ground-truth annotations.
Approach: They propose a generalized latent optimization strategy that allows different losses to accommodate each other and improves training dynamics.
Outcome: The proposed approach outperforms transfer learning and meta-learning baselines and achieves 10.02% performance gain on the iSarcasm dataset.
Word Matters: What Influences Domain Adaptation in Summarization? (2024.acl-long)

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Challenge: Large Language Models (LLMs) can generalize domain datasets unseen during training but are not able to predict domain adaptation performance.
Approach: They propose to quantify dataset learning difficulty as the learning difficulty of generative summarization, which is determined by word-based compression rate and abstraction level.
Outcome: The proposed model can predict performance on unknown domain datasets without training, and it is based on the findings.
FB-Bench: A Fine-Grained Multi-Task Benchmark for Evaluating LLMs’ Responsiveness to Human Feedback (2025.emnlp-main)

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Challenge: Existing research focuses on benchmarking LLMs in single-turn dialogues, neglecting the nuanced nature of human feedback within real-world usage scenarios.
Approach: They propose a fine-grained, multi-task benchmark designed to evaluate LLMs’ responsiveness to human feedback under real-world usage scenarios in Chinese.
Outcome: The proposed benchmarks show that human feedback can significantly impact LLMs’ responsiveness in real-world usage scenarios.
Aligning VLM Assistants with Personalized Situated Cognition (2025.acl-long)

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Challenge: Existing studies on vision-language models aligned with general human objectives have not been successful because people with diversified backgrounds have different cognition even in the same situation.
Approach: They propose to characterize individuals based on the sociological concept of Role-Set and then evaluate their actions to see whether personalized alignment is achieved.
Outcome: The proposed framework constructs a cognition-aware and action-based reward model for personalized alignment.
End-to-End Modeling via Information Tree for One-Shot Natural Language Spatial Video Grounding (2022.acl-long)

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Challenge: Existing methods for grounding video frames with dense annotations require enormous amount of human effort.
Approach: They propose to ground natural language in video frames with only one frame labeled . they propose an end-to-end model that eliminates interference of irrelevant frames .
Outcome: The proposed model can ground natural language in all video frames with only one frame labeled . the proposed model eliminates interference of irrelevant frames based on branch search and cropping techniques .
CodeArena: Evaluating and Aligning CodeLLMs on Human Preference (2025.emnlp-main)

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Challenge: Code large language models (codeLLMs) focus on synthesizing the correct code snippet, ignoring the alignment with human preferences.
Approach: They propose a benchmark code-based on 40 categories and 44 programming languages to emulate real-world coding tasks.
Outcome: The proposed benchmarks show that open-source code LLMs perform better than open-sourced ones.
Towards Robust Neural Machine Translation with Iterative Scheduled Data-Switch Training (2022.coling-1)

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Challenge: Existing methods on robust neural machine translation (NMT) construct adversarial examples by injecting noise into authentic examples and indiscriminately exploit two types of examples.
Approach: They propose an iterative scheduled data-switch training framework to mitigate this problem by injecting noise into authentic examples and indiscriminately exploiting two types of examples.
Outcome: The proposed model outperforms several competitive benchmarks on four translation benchmarks.
Generating Fluent Adversarial Examples for Natural Languages (P19-1)

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Challenge: Current methods for building adversarial attackers for NLP are inefficient as the gradient is discarded.
Approach: They propose an adversarial attacker which performs Metropolis-Hastings sampling with the guidance of gradients to solve these problems.
Outcome: The proposed algorithm outperforms the baseline model on attacking capability on IMDB and SNLI.
Structure Guided Retrieval-Augmented Generation for Factual Queries (2026.acl-long)

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Challenge: Existing methods for RAG produce factually incorrect outputs, resulting in incorrect answers.
Approach: They propose a novel problem that explicitly incorporates structural information into RAG for factual questions to satisfy all query conditions.
Outcome: The proposed method significantly outperforms baselines on ERQA while maintaining reasonable computational overhead.
Reinforced Product Metadata Selection for Helpfulness Assessment of Customer Reviews (D19-1)

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Challenge: a helpful review is largely concerned with the metadata of its target product . a selector learns from both the key-value product metadata and one of its reviews to take an action .
Approach: They propose a framework that uses product metadata to assess helpfulness of free-text reviews . they use two real-world datasets from amazon.com and Yelp.com to test the framework .
Outcome: The proposed framework can achieve state-of-the-art performance with substantial improvements . it uses two real-world datasets from Amazon.com and Yelp.com .
Safety is Not Only About Refusal: Reasoning-Enhanced Fine-tuning for Interpretable LLM Safety (2025.findings-acl)

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Challenge: Large Language Models (LLMs) are vulnerable to jailbreak attacks that exploit weaknesses in traditional safety alignment.
Approach: They propose a framework that trains models to engage in explicit safe reasoning before response . they propose RATIONAL, which allows models to reject harmful prompts while providing meaningful and context-aware responses.
Outcome: The proposed framework fine-tunes models to reason about query intent, ethics, and potential harm.
LLM-Based Human-Agent Collaboration and Interaction Systems: A Survey (2026.findings-acl)

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Challenge: Recent advances in large language models (LLMs) have sparked growing interest in building fully autonomous agents.
Approach: They propose to integrate human-provided information, feedback, or control into the agent system to enhance system performance, reliability, and safety.
Outcome: The proposed systems improve system performance, reliability, and safety by integrating human-provided information, feedback, or control into the agent system.
A Sentiment Consolidation Framework for Meta-Review Generation (2024.acl-long)

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Challenge: Recent advances in abstractive text summarization have created plausible summaries, but it is unclear if they truly possess the capability of information consolidation to generate summary.
Approach: They propose to prompt large language models to generate meta-reviews and use evaluation metrics to assess the quality of generated meta- reviews.
Outcome: The proposed framework proves that human meta-reviewers follow a framework of sentiment consolidation to write meta- reviews compared with prompting them with simple instructions.
A Topic Augmented Text Generation Model: Joint Learning of Semantics and Structural Features (D19-1)

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Challenge: Existing methods for text generation are limited in supervised setting and designed for specific applications.
Approach: They propose a text generation model that learns semantics and structural features simultaneously . their model leverages a topic-based model to enhance the recognition of text semantics .
Outcome: The proposed model outperforms state-of-the-art models in terms of text perplexity and topic coherence.
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.
Summarizing Multiple Documents with Conversational Structure for Meta-Review Generation (2023.findings-emnlp)

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Challenge: Existing models for abstractive text summarization do not provide explicit interdocument relationships among source documents.
Approach: They propose a model that uses sparse attention based on the conversational structure and a multi-task training objective that predicts metadata features.
Outcome: The proposed model outperforms baseline models in terms of evaluation metrics but struggle to handle conflicts in source documents.
Reasoning under Uncertainty: Efficient LLM Inference via Unsupervised Confidence Dilution and Convergent Adaptive Sampling (2025.emnlp-main)

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Challenge: Large language models suffer from overconfidence and computational inefficiency due to fixed computation budgets and miscalibrated confidence estimates.
Approach: They propose a framework for computationally efficient, trustworthy reasoning under uncertainty using Diversity-Aware Self-Signal Dilution and Convergent Adaptive Weighted Sampling techniques.
Outcome: The proposed framework reduces inference cost by 70% while maintaining accuracy levels while reducing inference costs.
Injecting Domain-Specific Knowledge into Large Language Models: A Comprehensive Survey (2025.findings-emnlp)

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Challenge: specialized LLMs are often limited in domain-specific applications that require specialized knowledge.
Approach: They provide a comprehensive overview of four key methods to enhance large language models by integrating domain-specific knowledge.
Outcome: The proposed methods are categorized into four key approaches: dynamic knowledge injection, static knowledge embedding, modular adapters, and prompt optimization.
ConNER: Consistency Training for Cross-lingual Named Entity Recognition (2022.emnlp-main)

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Challenge: Existing consistency training methods for named entity recognition (NER) are likely to violate the consistency hypothesis or focus on coarse-grain consistency.
Approach: They propose a consistency training framework for cross-lingual named entity recognition that leverages unlabeled target-language data and dropout-based consistency training on labeled source-language datasets.
Outcome: The proposed framework improves on translation-based consistency training on unlabeled target-language data and dropout-based consistent training on labeled source-language datasets.
Discovering Topics in Long-tailed Corpora with Causal Intervention (2021.findings-acl)

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Challenge: Existing topic models are designed and evaluated on balanced corpora, but the longtailed bias can impair the performance of topic models.
Approach: They propose a causal inference framework to explain topic modeling on long-tailed corpora by applying causal intervention in training.
Outcome: The proposed model can mitigate the bias effect, greatly improve topic quality and discover the hidden semantics on the tail.
An Ensemble-of-Experts Framework for Rehearsal-free Continual Relation Extraction (2024.findings-acl)

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Challenge: Existing methods for continual relation extraction (CRE) are rehearsal-based and need to store samples and thus may encounter privacy and security issues.
Approach: They propose an Ensemble-of-Experts framework for rehearsal-free continual relation extraction that discriminates between experts and augments analogous relations across tasks.
Outcome: The proposed method outperforms existing rehearsal-free methods and is even better than existing methods.
Episodic Memory Retrieval from LLMs: A Neuromorphic Mechanism to Generate Commonsense Counterfactuals for Relation Extraction (2024.findings-acl)

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Challenge: Large language models (LLMs) have achieved satisfactory performance in counterfactual generation, however, there are misalignments between LLMs and humans which hinder LLM from handling complex tasks like relation extraction.
Approach: They propose to mimic the episodic memory retrieval mechanism of human hippocampus to align LLMs’ generation process with that of humans.
Outcome: The proposed framework improves over existing methods in terms of quality of counterfactuals.
Exploiting Multimodal Reinforcement Learning for Simultaneous Machine Translation (2021.eacl-main)

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Challenge: Existing studies on multimodality in simultaneous machine translation have highlighted the challenges for the agent to maintain good translation quality while learning an optimal translation path.
Approach: They propose a multimodal approach to simultaneous machine translation using reinforcement learning with strategies to integrate visual and textual information in both the agent and the environment.
Outcome: The proposed multimodal approach improves translation quality while keeping latency low while providing visual cues.
AgentThink: A Unified Framework for Tool-Augmented Chain-of-Thought Reasoning in Vision-Language Models for Autonomous Driving (2025.findings-emnlp)

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Challenge: Vision-Language Models struggle with hallucinations, inefficient reasoning, and limited real-world validation hinders accurate perception and robust step-by-step reasoning.
Approach: AgentThink integrates Chain-of-Thought reasoning with dynamic, agent-style tool invocation for autonomous driving tasks.
Outcome: Experiments on the DriveLMM-o1 benchmark show AgentThink significantly boosts overall reasoning scores by 53.91% and enhances answer accuracy by 33.54% .
RelEdit: Evaluating Conceptual Knowledge Editing in Language Models via Relational Reasoning (2025.findings-acl)

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Challenge: Existing knowledge editing methods struggle to reason about related conceptual knowledge effectively, despite a lack of model-level relational reasoning.
Approach: They propose a benchmark to assess concept-level and instance-level relational reasoning abilities of edited models.
Outcome: The proposed model obtains the best scores on the memory-based in-context editing baseline, MICE, suggesting a promising direction for model editing.
Towards Table-to-Text Generation with Pretrained Language Model: A Table Structure Understanding and Text Deliberating Approach (2022.emnlp-main)

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Challenge: Currently, the generalization issues hinder the applicability of neural table-to-text models due to the limited source tables.
Approach: They propose a table-structureaware text generation model with pretrained language model and propose TASD to bridge the gap between the structured table and text input.
Outcome: The proposed model bridges the gap between the structured table and text input and generates accurate and fluent descriptive texts on two public datasets.
DeltaScore: Fine-Grained Story Evaluation with Perturbations (2023.findings-emnlp)

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Challenge: Existing evaluation metrics for stories are limited in assessing intricate aspects of storytelling, such as fluency and interestingness.
Approach: They propose a novel method that uses perturbation techniques to evaluate story aspects . they compare fluency, coherence, relatedness, logicality, interestingness and interestingness to existing metrics .
Outcome: The proposed method shows that one specific perturbation is highly effective in capturing multiple aspects.
ART: rule bAsed futuRe-inference deducTion (2023.emnlp-main)

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Challenge: Existing studies focus on language-based premises and deduce valid conclusions from visual observations.
Approach: They propose a rule-based deductive reasoning task that uses video to deduce the correct future event . they use commonsense knowledge to annotate video and a strong baseline to conduct reasoning .
Outcome: Empirical studies validate the rationality of ARTNet in deductive reasoning upon visual observations . ART is a method that rigorously follows a set of explicit constraints to deduce valid conclusions from empirical facts .
Your Language Model May Think Too Rigidly: Achieving Reasoning Consistency with Symmetry-Enhanced Training (2025.findings-acl)

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Challenge: Large Language Models (LLMs) have demonstrated strong reasoning capabilities across various tasks.
Approach: They propose a data-centric approach that enhances LLMs’ awareness of symmetry in query variations and propose syMmetry-ENhanceD (MEND) data augmentation.
Outcome: Extensive experiments on logical and arithmetic reasoning tasks show that the proposed approach improves model robustness at the knowledge extraction stage through query augmentation.
MELM: Data Augmentation with Masked Entity Language Modeling for Low-Resource NER (2022.acl-long)

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Challenge: Named entity recognition (NER) tasks have limited amount of labeled data . data augmentation methods suffer from token-label misalignment, which leads to unsatsifactory performance.
Approach: They propose a data augmentation framework that explicitly injects NER labels into sentence context and generates high-quality augmented data with novel entities.
Outcome: The proposed framework outperforms baseline methods on low-resource tasks.
CARD: Cross-modal Agent Framework for Generative and Editable Residential Design (2025.emnlp-main)

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Challenge: Architectural design automation has made significant progress, but the complexity of open-world environments makes residential design a challenging task.
Approach: They propose a framework that leverages a system of specialized cross-modal agents to adapt to open-world residential design.
Outcome: The proposed framework enables users to generate and edit residential design without requiring specialized expertise.
History-Aware Hierarchical Transformer for Multi-session Open-domain Dialogue System (2022.findings-emnlp)

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Challenge: Existing open-domain dialogue systems conduct one-session conversations, but multi-session MSCs are under-investigated.
Approach: They propose a History-Aware Hierarchical Transformer for multi-session open-domain dialogue . they propose to encode history conversations into a history memory and leverage historical information to generate well-informed responses.
Outcome: The proposed model outperforms baseline models on a large-scale MSC dataset.
Do you have the right scissors? Tailoring Pre-trained Language Models via Monte-Carlo Methods (2020.acl-main)

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Challenge: Pre-trained language models can be fine-tuned on task-specific datasets, but fine-timing can lead to over- and/or under-estimation problems.
Approach: They propose a method to transfer probability mass from over-estimated regions to under-estimates by truncating and transferring probability mass between over- and under-estimating regions.
Outcome: The proposed method outperforms the fine-tuning approach on a variety of datasets.
How does Misinformation Affect Large Language Model Behaviors and Preferences? (2025.acl-long)

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Challenge: Existing studies have explored the role of Large Language Models in combating misinformation, but there is still a lack of detailed analysis on the specific aspects and extent to which LLMs are influenced by misinformation.
Approach: They propose to use a benchmark to evaluate LLMs' behavior and knowledge preference toward misinformation to identify their models.
Outcome: The proposed approach is based on 10,346,712 pieces of misinformation and examines knowledge conflicts and stylistic variations.
Mitigating Spurious Correlations in Text Classification Using Latent Space Geometry (2026.acl-long)

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Challenge: Existing models rely on predictive shortcuts that hold in training data but break under distribution shifts, leading to large performance drops for minority groups.
Approach: They propose a framework that transforms abstract biases into interpretable geometric anchors without auxiliary classifiers by manipulating latent space geometry.
Outcome: The proposed framework outperforms state-of-the-art baselines and improves worst-group accuracy by over 20% on the CivilComments dataset.
Structural Reward Model: Enhancing Interpretability, Efficiency, and Scalability in Reward Modeling (2025.emnlp-industry)

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Challenge: Generative RMs (GRMs) lack contextual and background information during inference, leading to incomplete evaluations.
Approach: They propose a modular and interpretable framework that integrates side-branch models as auxiliary feature generators.
Outcome: The proposed framework outperforms scalar and saline reward models in robustness and alignment with human preferences.
NeuSym-RAG: Hybrid Neural Symbolic Retrieval with Multiview Structuring for PDF Question Answering (2025.acl-long)

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Challenge: Existing approaches to retrieval augmented generation neglect PDF structure and layout . individual PDFs often exceed prompt limits and user queries may span multiple documents.
Approach: They propose a hybrid neural symbolic retrieval framework which combines both paradigms in an interactive process.
Outcome: The proposed framework organizes semi-structured PDF content into relational database and vectorstore . it defeats both RAG and structured baselines on three PDF-based QA datasets .
Prompting Large Language Models for Counterfactual Generation: An Empirical Study (2024.lrec-main)

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Challenge: Large language models (LLMs) have made remarkable progress in a wide range of natural language understanding and generation tasks, but their ability to generate counterfactuals has not been examined systematically.
Approach: They propose a framework to evaluate LLMs' ability to generate counterfactuals based on key factors including intrinsic properties and prompt design.
Outcome: The proposed framework examines the strengths and weaknesses of large language models (LLMs) and identifies factors that influence their ability to generate counterfactuals.
Pointing to a Llama and Call it a Camel: On the Sycophancy of Multimodal Large Language Models (2025.emnlp-main)

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Challenge: Multimodal large language models exhibit a pronounced form of visual sycophantic behavior when they process image inputs.
Approach: They propose a technique that allows multimodal large language models to engage in reflective reasoning and determine whether a user’s instruction is misleading or corrective.
Outcome: The proposed model resists misleading instructions but is stubborn even if it is wrong.
Exploring Representation-level Augmentation for Code Search (2022.emnlp-main)

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Challenge: Recent data augmentations for code search are at the raw-data level, which requires additional code analysis and training cost.
Approach: They propose a general format of representation-level augmentation that unifies existing methods.
Outcome: The proposed methods can boost the performance of code search models on a large-scale dataset.
Nested Event Extraction upon Pivot Element Recognition (2024.lrec-main)

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Challenge: Nested Event Extraction (NEE) aims to extract complex event structures where an event contains other events as its arguments recursively.
Approach: They propose a new model that extracts nested events mainly based on recognizing PEs.
Outcome: The proposed model can extract nested events based on recognizing PEs . it incorporates information from both event types and argument roles to improve performance .
pFedGPT: Hierarchically Optimizing LoRA Aggregation Weights for Personalized Federated GPT Models (2025.emnlp-main)

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Challenge: Existing methods for fine-tuning Large Language Models (LLMs) struggle with data heterogeneity and adapt shared global knowledge to individual client needs.
Approach: They propose a framework that leverages Hierarchical Bayesian Optimization (HBO) for fine-grained, personalized LoRA aggregation.
Outcome: The proposed framework achieves state-of-the-art (SOTA) performance on personalized FL benchmarks while introducing only minimal (approx. 4%) additional optimization overhead.
Improving Self-training for Cross-lingual Named Entity Recognition with Contrastive and Prototype Learning (2023.acl-long)

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Challenge: Existing methods to bridge the linguistic gap between self-training and monolingual named entity recognition (NER) however, due to sub-optimal performance on target languages, the pseudo labels are noisy and limit the overall performance.
Approach: They propose to combine representation learning and pseudo label refinement in one coherent framework to improve self-training for cross-lingual named entity recognition (NER)
Outcome: The proposed method improves cross-lingual named entity recognition (NER) on multiple transfer pairs.
Visual Contextual Attack: Jailbreaking MLLMs with Image-Driven Context Injection (2025.emnlp-main)

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Challenge: Recent studies have shown that visual encoders can induce harmful behavior in multimodal large language models.
Approach: They propose a vision-centric jailbreak attack that uses visual information to create a jailbreak context.
Outcome: The proposed attack outperforms baseline attacks on MM-SafetyBench and GPT-4o.
Firm or Fickle? Evaluating Large Language Models Consistency in Sequential Interactions (2025.findings-acl)

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Challenge: Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse tasks, but their deployment in high-stake domains requires consistent and coherent behavior across multiple rounds of user interaction.
Approach: They propose a framework for evaluating and improving LLM response consistency, and introduce a benchmark dataset to evaluate LLM consistency.
Outcome: The proposed framework improves response stability without sacrificing accuracy, and offers a practical path toward more dependable behavior in critical, real-world deployments.
Exploring All-In-One Knowledge Distillation Framework for Neural Machine Translation (2023.emnlp-main)

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Challenge: Existing knowledge distillation methods only obtain one lightweight student each time . this could be resource-intensive and resulting in multiple students not being optimally utilized .
Approach: They propose a knowledge distillation framework which generates multiple satisfactory students at once.
Outcome: The proposed framework generates multiple satisfactory students at once.
On the Step Length Confounding in LLM Reasoning Data Selection (2026.findings-acl)

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Challenge: Existing pipelines generate long reasoning data from more capable Large Language Models (LLMs) and apply manually heuristic or naturalness-based selection methods to filter high-quality samples.
Approach: They propose to use supervised fine-tuning to generate long reasoning data from more capable Large Language Models and apply manually heuristic or naturalness-based selection methods to filter high-quality samples.
Outcome: Experiments on four LLMs and five evaluation benchmarks show that the proposed approach is effective in mitigating step length confounding problem.
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.
A Secure and Efficient Federated Learning Framework for NLP (2021.emnlp-main)

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Challenge: Existing FL frameworks require a trusted aggregator or require heavy-weight cryptographic primitives, which makes the performance significantly degraded.
Approach: They propose a framework that is federated and efficient for NLP . they propose to eliminate the need for trusted entities and achieve better model accuracy .
Outcome: The proposed framework achieves better model accuracy and model accuracy than existing FL frameworks.
Multilingual Retrieval Augmented Generation for Culturally-Sensitive Tasks: A Benchmark for Cross-lingual Robustness (2025.findings-acl)

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Challenge: Existing approaches to retrieval-augmented generated (RAG) can be useful in multilingual settings, but they also introduce biases in the retrieved documents.
Approach: They propose a dataset of territorial disputes paired with retrieved Wikipedia documents in 49 languages to evaluate cross-lingual robustness.
Outcome: The proposed paradigm helps mitigate hallucinations of large language models (LLMs).
Generating Commonsense Counterfactuals for Stable Relation Extraction (2023.emnlp-main)

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Challenge: Existing methods for relation extraction struggle to identify causal terms under the invariant entity constraint.
Approach: They propose a framework to generate commonsense counterfactuals for stable relation extraction by using a knowledge base WordNet and a constituency parser.
Outcome: The proposed framework significantly enhances the stability of relation extraction models.
Beyond Dialogue Time: Temporal Semantic Memory for Personalized LLM Agents (2026.findings-acl)

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Challenge: Existing methods focus on point-wise memory, losing durative information that captures persistent states and evolving patterns.
Approach: They propose a memory framework that models semantic time for point-wise memory and supports the construction and utilization of durative memory.
Outcome: Experiments on LongMemEval and LoCoMo show that the proposed method outperforms existing methods and achieves up to 12.2% improvement in accuracy.
STANKER: Stacking Network based on Level-grained Attention-masked BERT for Rumor Detection on Social Media (2021.emnlp-main)

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Challenge: Existing models for text classification are limited in performance, resulting in poor rumor detection.
Approach: They propose to use Chinese microblogs to detect rumors using pre-trained language models and auxiliary features such as comments to mask co-attention.
Outcome: The proposed model outperforms the state-of-the-art on Weibo20 and three existing social media datasets.
The Impact of Language Mixing on Bilingual LLM Reasoning (2025.emnlp-main)

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Challenge: Recent studies show multilingual speakers intentionally switch languages during reasoning . enforcing monolingual decoding reduces accuracy by 5.6 percentage points .
Approach: They find that multilingual speakers intentionally switch languages during reasoning . enforcing monolingual decoding reduces accuracy by 5.6 percentage points . authors suggest that language mixing is not merely a byproduct of multilingual training .
Outcome: The proposed model can be used to predict whether a language switch would benefit or harm reasoning.
Few-Shot Semantic Dependency Parsing via Graph Contrastive Learning (2024.lrec-main)

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Challenge: Existing graph neural networks (GNNs) have shown promising performance on semantic dependency parsing (SDP) training a high-performing model requires a large amount of labeled data and it is prone to over-fitting in the absence of sufficient labele .
Approach: They propose a syntax-guided graph contrastive learning framework to train GNNs with unlabeled data and fine-tune pre-trained GNN models with few-shot labeled SDP data.
Outcome: The proposed framework achieves promising results when few-shot training samples are available.
MECH: A Cost-Effective Multi-Task Cascade Framework for Classroom Opinion Evolution Recognition (2026.acl-long)

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Challenge: Existing studies focus on dialogue act annotation, overlooking the deeper dimension of opinion evolution.
Approach: They propose a framework for Classroom Opinion Evolution Recognition that translates "Action-Opinion" dualism into a risk-aware routing mechanism.
Outcome: The proposed framework achieves state-of-the-art accuracy of 78.55% while reducing API costs by 44.4%.
Decomposed Opinion Summarization with Verified Aspect-Aware Modules (2025.findings-acl)

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Challenge: Existing methods for summarizing opinions from large-scale online reviews are not available for crowdsourcing and are difficult to crowdsource.
Approach: They propose a domain-agnostic modular approach guided by review aspects to separate tasks of aspect identification, opinion consolidation, and meta-review synthesis to enable greater transparency and ease of inspection.
Outcome: The proposed approach generates more grounded summaries than baseline models, as verified through automated and human evaluations.
Easy Dataset: A Unified and Extensible Framework for Synthesizing LLM Fine-Tuning Data from Unstructured Documents (2025.emnlp-demos)

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Challenge: Existing data synthesis tools struggle to extract reliable fine-tuning data from heterogeneous documents.
Approach: They propose a framework for synthesizing fine-tuning data from unstructured documents via an intuitive graphical user interface.
Outcome: The proposed framework can extract reliable data from unstructured documents via an intuitive graphical user interface (GUI) it leverages persona-driven prompting approach to generate diverse question-answer pairs using public-available LLMs.
RASPberry: Retrieval-Augmented Monte Carlo Tree Self-Play with Reasoning Consistency for Multi-Hop Question Answering (2025.findings-acl)

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Challenge: Existing methods for generating and analyzing multiple document knowledge are not effective for multi-hop question answering.
Approach: They propose a Monte Carlo tree-based approach to inference-time scaling using RASPberry.
Outcome: Experimental results show that the proposed method achieves better inference-time scaling on smaller LLMs.
Short Text Topic Modeling with Topic Distribution Quantization and Negative Sampling Decoder (2020.emnlp-main)

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Challenge: Topic models for short texts suffer from data sparsity because of limited word co-occurrences.
Approach: They propose a neural topic model with a new topic distribution quantization approach that generates peakier distributions that are more appropriate for modeling short texts.
Outcome: The proposed model outperforms both strong traditional and neural baselines under extreme data sparsity scenes, producing high-quality topics.
Breaking the Hourglass Phenomenon of Residual Quantization: Enhancing the Upper Bound of Generative Retrieval (2024.emnlp-industry)

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Challenge: Generative retrieval (GR) is a transformative paradigm in search and recommender systems . however, data sparsity and long-tailed distribution hinder the full utilization of GR .
Approach: They propose a method to reduce the "Hourglass" phenomenon in RQ-SID where codebook tokens become overly concentrated.
Outcome: The proposed methods improve retrieval efficiency and generalization capabilities.
NewsBench: A Systematic Evaluation Framework for Assessing Editorial Capabilities of Large Language Models in Chinese Journalism (2024.acl-long)

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Challenge: a novel evaluation framework assesses the capabilities of Large Language Models (LLMs) for editorial capabilities in Chinese journalism.
Approach: They propose to use a benchmark dataset to assess the capabilities of Large Language Models (LLMs) for editorial capabilities in Chinese journalism.
Outcome: The proposed evaluation framework is based on a dataset of 1,267 test samples in 24 news domains.
DynGL-SDP: Dynamic Graph Learning for Semantic Dependency Parsing (2022.coling-1)

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Challenge: Existing parsers that learn graph representations based on static graphs are error-prone and disjointed . Graph-based parser can parse sentences efficiently but suffer from error propagation .
Approach: They propose a dynamic graph learning framework to learn graph representations based on a static graph constructed by an existing parser.
Outcome: The proposed parser outperforms the previous parsers on the SemEval-2015 task 18 dataset in three languages.
Multi-modal Action Chain Abductive Reasoning (2023.acl-long)

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Challenge: Existing models for Abductive Reasoning are limited in their ability to infer the most plausible explanation of incomplete known phenomena.
Approach: They propose a vision-language task that aims to imagine the most plausible event by spatio-temporal grounding in past video and infer the hypothesis of subsequent action chain layer by layer.
Outcome: The proposed model outperforms existing video-language models in terms of effectiveness on the proposed dataset.
The GaoYao Benchmark: A Comprehensive Framework for Evaluating Multilingual and Multicultural Abilities of Large Language Models (2026.acl-long)

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Challenge: Existing multilingual evaluation benchmarks neglect cultural nuances and lack language coverage in subjective tasks.
Approach: They propose a framework that categorizes evaluation tasks into three cultural layers and nine cognitive sub-layers.
Outcome: The proposed framework surpasses prior coverage by up to 111% on 20+ LLMs.
Quantized Side Tuning: Fast and Memory-Efficient Tuning of Quantized Large Language Models (2024.acl-long)

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Challenge: Existing methods to finetun large language models (LLMs) only update a small number of trainable parameters, or attempt to reduce the memory footprint during the training phase of the finetune process.
Approach: They propose quantized side tuing (QST) which quantizes an LLM’s model weights into 4-bit to reduce the memory footprint of the original weights.
Outcome: The proposed method reduces the memory footprint of the model weights, optimizer states, and intermediate activations while reducing the memory requirements.
Beyond Surface Features: Advancing Medical Vision-Language Alignment via Dynamic Evidence-Guided Preference Optimization (2026.acl-long)

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Challenge: Existing preference-based methods for medical large vision-Language Models face limitations in medical settings . existing methods are limited by overfitting to superficial cues and pseudo convergence of the preference signal.
Approach: They propose a framework that enables evidence-aware and adaptive preference learning for Med-LVLMs.
Outcome: The proposed framework improves evidence-aware and adaptive preference learning for Med-LVLMs.
A Survey of Link Prediction in N-ary Knowledge Graphs (2025.emnlp-main)

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Challenge: N-ary Knowledge Graphs (NKGs) capture n-ary facts containing more than two entities.
Approach: They present the first comprehensive survey of link prediction in NKGs . they provide an overview of the field and analyze their performance and application scenarios .
Outcome: The proposed methods provide an overview of the field and analyze performance and application scenarios.
Rethinking Negative Pairs in Code Search (2023.emnlp-main)

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Challenge: Comparative learning is a key component in fine-tuning code search models . however, negative samples of InfoNCE may deteriorate its representation learning .
Approach: They propose a loss function that inserts weight terms into InfoNCE to improve contrastive learning.
Outcome: The proposed loss function is a special case of Soft-InfoNCE, the authors show . it is more accurate than other loss functions, and it is faster than other models.
Generative Dense Retrieval: Memory Can Be a Burden (2024.eacl-long)

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Challenge: Empirical results show that Generative Dense Retrieval (GDR) achieves an average of 3.0 R@100 improvement on NQ dataset under multiple settings and has better scalability.
Approach: They propose a Generative Dense Retrieval paradigm that auto-decodes document identifiers given a query and uses memory to avoid memory confusion.
Outcome: Empirical results show that the proposed paradigm improves on the small-scale corpora and improves scalability.
Deep Research with Open-Domain Evaluation and Multi-Stage Guardrails for Safety (2026.acl-long)

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Challenge: Existing deep research frameworks lack adequate evaluation procedures and stage-specific protections.
Approach: They propose a framework with open-domain evaluation and a stage-wise safety benchmark to address this oversight.
Outcome: The proposed framework improves defense success rates by 16.53% while reducing over-refusal rates to approximately 6%.
TF-Mamba: Text-enhanced Fusion Mamba with Missing Modalities for Robust Multimodal Sentiment Analysis (2025.findings-emnlp)

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Challenge: Existing Transformer-based methods with missing modalities are difficult to use and have quadratic complexity.
Approach: They propose a text-enhanced Fusion Mamba framework for robust MSA with missing modalities . a Text-aware Modality Enhancement module aligns and enriches non-text modality while reconstructing missing text semantics.
Outcome: The proposed method is efficient under missing modalities and can be used in long-range modeling and multimodal fusion scenarios.
Long-Context Reasoning Through Proxy-Based Chain-of-Thought Tuning (2026.acl-long)

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Challenge: Recent large language models support inputs of up to 10 million tokens, yet they perform poorly on long-context tasks.
Approach: They propose a training framework that transfers reasoning capabilities from proxy contexts to full long contexts.
Outcome: The proposed framework outperforms baseline models with reduced computational overhead.
CodecLM: Aligning Language Models with Tailored Synthetic Data (2024.findings-naacl)

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Challenge: Recent work on generating diverse instructions and applying LLM to increase instruction complexity neglects downstream use cases.
Approach: They propose a framework for generating high-quality synthetic data for LLM alignment with different downstream instruction distributions and LLMs.
Outcome: Experiments on four open-domain instruction using the proposed framework validate the effectiveness of CodecLM over the current state-of-the-art.
Unlocking the Black Box of Latent Reasoning: An Interpretability-Guided Approach to Intervention (2026.acl-long)

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Challenge: Existing methods for large language models (LLMs) lack a coherent representation of reasoning steps.
Approach: They propose a set of latent reasoning interventions that enable latent thinking and decode-time interventions that refine the latent process by imposing the identified geometric and semantic priors.
Outcome: The proposed models unlock latent capabilities and improve reasoning accuracy without any parameter updates.

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