Papers by Miao Chen

39 papers
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.
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.
Stylized Knowledge-Grounded Dialogue Generation via Disentangled Template Rewriting (2022.naacl-main)

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Challenge: Existing knowledge-grounded dialogue generation models only produce pedantic responses, which lacks emotion and attraction compared with the responses with polite style, positive and negative sentiments.
Approach: They propose a method which generates responses via combing disentangled style templates and content templates.
Outcome: The proposed method improves on evaluation metrics compared with state-of-the-art methods.
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.
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.
GFT: From Imitation to Reward Fine-Tuning with Unbiased Group Advantages and Dynamic Coefficient Rectification (2026.findings-acl)

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Challenge: Existing studies have demonstrated that supervised fine-tuning and reinforcement learning are effective in integrating knowledge injection with robust generalization.
Approach: They propose a unified post-training framework that addresses intrinsic limitations of supervised fine-tuning and reinforcement learning.
Outcome: The proposed framework surpasses SFT-based methods and yields policies that integrate more smoothly with subsequent RL training.
Towards Better Document-level Relation Extraction via Iterative Inference (2022.emnlp-main)

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Challenge: Existing methods only consider feature information of entity pairs, but our model exploits both feature information and previous predictions of entity pair.
Approach: They propose a document-level relation extraction model with iterative inference to extract relations between entities from raw texts.
Outcome: The proposed model outperforms existing methods on three commonly-used datasets.
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.
TriSPrompt: A Hierarchical Soft Prompt Model for Multimodal Rumor Detection with Incomplete Modalities (2025.findings-emnlp)

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Challenge: Existing multimodal rumor detection methods focus on learning joint modality representations from complete multimodal training data, rendering them ineffective in addressing the common occurrence of missing modalities in real-world scenarios.
Approach: They propose a hierarchical soft prompt model TriSPrompt which integrates three types of prompts to effectively detect rumors in incomplete multimodal data.
Outcome: The proposed model achieves an accuracy gain of over 13% compared to state-of-the-art models.
DocumentNet: Bridging the Data Gap in Document Pre-training (2023.emnlp-industry)

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Challenge: Document understanding tasks are a tedious task that requires extensive training and privacy constraints.
Approach: They propose a method to collect weakly labeled data from the web to benefit VDER training . the collected dataset does not depend on specific document types or entity sets .
Outcome: The proposed method does not depend on specific document types or entity sets, making it universally applicable to all VDER tasks.
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.
AgentAsk: Multi-Agent Systems Need to Ask (2026.acl-long)

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Challenge: Multi-agent systems fail to consistently outperform strong single-a agent baselines due to error propagation at inter-aggent message handoffs.
Approach: They propose an edge-level error taxonomy that identifies four main errors in multi-agent interactions as data gaps, signal corruption, referential drift and capacity gaps as primary sources of failure.
Outcome: The proposed module outperforms existing systems on five benchmarks and is architecture-agnostic.
MultiFileTest: A Multi-File-Level LLM Unit Test Generation Benchmark and Impact of Error Fixing Mechanisms (2026.findings-acl)

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Challenge: Existing evaluation benchmarks for LLM unit test generation focus on function-level code rather than on more practical, challenging multi-file codebases.
Approach: They propose a multi-file-level benchmark for unit test generation covering Python, Java, and JavaScript.
Outcome: The proposed benchmarks show that most LLMs exhibit moderate performance on MultiFileTest, highlighting the benchmark’s inherent difficulty.
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.
SocialEval: Evaluating Social Intelligence of Large Language Models (2025.acl-long)

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Challenge: Existing work on LLMs does not address their social intelligence (SI) and their discrepancy with humans.
Approach: They propose a script-based bilingual SI benchmark that integrates outcome-oriented goal achievement evaluation and process-oriented interpersonal ability evaluation by manually crafting narrative scripts.
Outcome: The proposed model is based on a script-based bilingual evaluation paradigm that integrates outcome- and process-oriented evaluation by manually crafting narrative scripts.
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.
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 .
YuLan-Mini: Pushing the Limits of Open Data-efficient Language Model (2025.acl-long)

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Challenge: prevailing pre-training approaches for large language models involve several complexities.
Approach: They propose a low-cost training recipe and a robust optimization approach to mitigate training instability . they also propose synthesis, curriculum, and data selection pipelines to integrate data .
Outcome: The proposed model achieves top-tier performance among models with similar parameter scale . it is comparable to industry-leading models that require significantly more data .
Discursive Socratic Questioning: Evaluating the Faithfulness of Language Models’ Understanding of Discourse Relations (2024.acl-long)

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Challenge: Discursive Socratic Questioning (DISQ) assesses a model's understanding of discourse relations by requiring systematic accuracy over multiple questions.
Approach: They propose a method that evaluates faithfulness of understanding discourse based on question answering.
Outcome: The proposed method evaluates the faithfulness of understanding discourse based on question answering.
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.
Towards Persona-Based Empathetic Conversational Models (2020.emnlp-main)

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Challenge: Empathetic conversational models have been shown to improve user satisfaction and task outcomes in numerous domains.
Approach: They propose a task towards persona-based empathetic conversations and propose e-learning model CoBERT that can be used to train persona on emmpathetic conversations.
Outcome: The proposed model improves empathetic responding more when trained on e-mpathetic conversations than non-empathy ones.
Hazards in Daily Life? Enabling Robots to Proactively Detect and Resolve Anomalies (2025.naacl-long)

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Challenge: Existing household robots are inability to recognize potential problems or dangers in home environments.
Approach: They propose a task of creating anomaly scenarios using generative models instead of manually labeled data to build simulated environments.
Outcome: The proposed framework outperforms existing models in terms of task description and scene diversity.
Beyond the Context Window: Scaling Agentic RL via End-to-end Optimized Context Compression (2026.acl-long)

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Challenge: Existing reinforcement learning pipelines suffer from degraded instruction following, excessive rollout costs, and strict context limits.
Approach: They propose a reinforcement learning (RL) fine-tuning of large language model (LLM) agents for long-horizon multi-turn tool use where context length quickly becomes a bottleneck.
Outcome: The proposed framework improves the success rate while maintaining the same or even lower working context length compared to baselines.
MedFact: A Large-scale Chinese Dataset for Evidence-based Medical Fact-checking of LLM Responses (2025.emnlp-main)

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Challenge: Existing medical fact-checking datasets focus on human-generated content, leaving the verification of content generated by large language models (LLMs) relatively unexplored.
Approach: They propose to use Chinese medical fact-checking datasets to verify LLM-generated medical content by combining in-context learning and fine-tuning.
Outcome: The first evidence-based Chinese medical fact-checking dataset of LLM-generated medical content consists of 1,321 questions and 7,409 claims .
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.
Rich Semantic Knowledge Enhanced Large Language Models for Few-shot Chinese Spell Checking (2024.findings-acl)

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Challenge: Chinese Spell Checking (CSC) is a widely used technology for speech to text and optical character recognition.
Approach: They propose to use Chinese rich semantic information to introduce large language models as the foundation model.
Outcome: The proposed framework performs better on few-shot CSC task than existing methods.
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.
Identity-Robust Language Model Generation via Content Integrity Preservation (2026.acl-long)

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Challenge: Existing studies show that Large Language Model outputs vary across sociodemographic attributes . this causes disparities in factual accuracy, utility, and safety, even for objective questions .
Approach: They propose a lightweight framework for identity-robust generation that neutralizes non-critical identity information while preserving semantically essential attributes.
Outcome: The proposed framework reduces identity-dependent generation bias by 66.3% over vanilla prompting and outperforms existing prompt-based defenses.
Learning Neural Templates for Recommender Dialogue System (2021.emnlp-main)

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Challenge: Recent advances in neural models have shown promising progress on this task, but key challenges remain .
Approach: They propose a framework that can decouple dialogue generation from item recommendation . they use a response template generator and item selector to generate a responses template .
Outcome: The proposed framework outperforms the state-of-the-art methods on the benchmark ReDial.
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%.
T-Eval: Evaluating the Tool Utilization Capability of Large Language Models Step by Step (2024.acl-long)

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Challenge: Existing studies evaluate the tool utilization ability of large language models based on the final output or only consider the single-step tool calling.
Approach: They propose a new approach to evaluate the tool utilization capability of large language models (LLMs) they decompose the tool usage into multiple sub-processes, including instruction following, planning, reasoning, retrieval, understanding, and review.
Outcome: The proposed model exhibits consistency with the outcome-oriented evaluation and provides a more fine-grained analysis of the capabilities of LLMs.

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