Papers by Yu Qin

41 papers
Automatic Table Union Search with Tabular Representation Learning (2023.findings-acl)

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Challenge: Existing methods to identify uniability based on column representations are insufficient to reveal latent relational features to describe column relation between pair of columns.
Approach: They propose a self-supervised table union search framework called AutoTUS to learn column relational representations in a multi-stage manner.
Outcome: The proposed framework improves on the SOTA baseline and on real-world datasets.
LLMs Assist NLP Researchers: Critique Paper (Meta-)Reviewing (2024.emnlp-main)

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Challenge: a comparative analysis of paper (meta-)reviews by large language models (LLMs) aims to identify and distinguish LLMs from human activities .
Approach: They present a comparative analysis to identify and distinguish LLM activities from human activities.
Outcome: The proposed analysis aims to improve recognition of instances when someone implicitly uses LLMs for reviewing activities.
An Information Bottleneck Perspective for Effective Noise Filtering on Retrieval-Augmented Generation (2024.acl-long)

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Challenge: Experimental results show that retrieval-augmented generation improves accuracy and relevance of large language models.
Approach: They propose to introduce the information bottleneck theory into retrieval-augmented generation by maximizing mutual information between compression and ground output while minimizing mutual information .
Outcome: The proposed approach improves accuracy and correctness of answer generation and conciseness with 2.5% compression rate.
MentalSeek-Dx: Towards Progressive Hypothetico-Deductive Reasoning for Real-world Psychiatric Diagnosis (2026.acl-long)

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Challenge: Mental health disorders represent a burgeoning global public health challenge . lack of ecological validity and fine-grained diagnostic supervision limits their utility .
Approach: They propose a medical-specialized LLM trained to internalize clinical reasoning process through supervised trajectory construction and curriculum-based reinforcement learning.
Outcome: The proposed model achieves state-of-the-art with only 14B parameters, establishing a clinically grounded framework for reliable psychiatric diagnosis.
Privacy in Action: Towards Realistic Privacy Mitigation and Evaluation for LLM-Powered Agents (2025.findings-emnlp)

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Challenge: Existing benchmarks for privacy performance of LLM agents are limited to static, simplified scenarios.
Approach: They propose a model-agnostic, contextual integrity based mitigation approach that effectively reduces privacy leakage from 36.08% to 7.30% on DeepSeek-R1 and from 33.06% to 8.32% on GPT-4o.
Outcome: The proposed approach reduces privacy leakage from 36.08% to 7.30% on DeepSeek-R1 and from 33.06% to 8.32% on GPT-4o while preserving task helpfulness.
Optimizing Question Semantic Space for Dynamic Retrieval-Augmented Multi-hop Question Answering (2025.acl-long)

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Challenge: Existing retrieval-augmented generation methods are insufficient for multi-hop question answering . however, they tend to generate hallucinations due to semantic mismatching .
Approach: They propose to optimize question semantic space for dynamic retrieval-augmented multi-hop question answering by optimizing the semantic embeddings.
Outcome: The proposed method outperforms existing RAG methods in both in- and out-of-domain settings.
UFO: A UI-Focused Agent for Windows OS Interaction (2025.naacl-long)

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Challenge: UFO is a UI-Fcused agent designed to fulfill user requests tailored to Windows OS applications . it decomposes user requests using divide-and-conquer approach, enabling seamless navigation and addressing sub-tasks across multiple applications.
Approach: They propose a UI-Fcused Windows OS agent that decomposes user requests using a divide-and-conquer approach and incorporates a control interaction module tailored for Windows OS.
Outcome: The proposed agent decomposes user requests using divide-and-conquer approach, enabling seamless navigation and addressing sub-tasks across multiple applications.
Beta Distribution Guided Aspect-aware Graph for Aspect Category Sentiment Analysis with Affective Knowledge (2021.emnlp-main)

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Challenge: Existing methods for aspect category sentiment analysis do not necessarily occur in a sentence.
Approach: They propose a Beta Distribution-guided aspect-aware graph construction based on external knowledge . they use aspect-related words as the pivots to derive aspect-relevant weights .
Outcome: The proposed approach outperforms the state-of-the-art methods on 6 benchmark datasets.
Formally Specifying the Intended Behavior of the Program: LLM-Driven Neuro-Symbolic Program Specification Synthesis (2026.acl-demo)

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Challenge: Formal verification typically requires developers to write detailed formal specifications . a formal verification system that generates candidate specifications is costly and error-prone .
Approach: They propose an LLM-driven neuro-symbolic demonstration system that reframes specification writing as constrained structured synthesis.
Outcome: The proposed system reduces hallucinations and produces proof-ready annotations.
MAPS: Motivation-Aware Personalized Search via LLM-Driven Consultation Alignment (2025.acl-long)

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Challenge: Existing personalized product search methods assume that users’ query fully captures their real motivation, but in practice, user's queries do not always articulate the requirements.
Approach: They propose a Motivation-Aware Personalized Search method that embeds queries and consultations into a unified semantic space via LLMs and utilizes a Mixture of Attention Experts (MoAE) to prioritize critical semantics.
Outcome: Extensive experiments on real and synthetic data show that the proposed method outperforms existing methods in retrieval and ranking tasks.
Diversifying Content Generation for Commonsense Reasoning with Mixture of Knowledge Graph Experts (2022.findings-acl)

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Challenge: Recent years have seen a surge of interest in improving the generation quality of commonsense reasoning tasks.
Approach: They propose a method that diversifies the generative reasoning by a mixture of expert strategy on commonsense knowledge graphs to encourage various generation outputs.
Outcome: The proposed method improves diversity while achieving on par performance on two GCR benchmarks, based on both automatic and human evaluations.
Why Does New Knowledge Create Messy Ripple Effects in LLMs? (2024.emnlp-main)

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Challenge: Existing research has focused on post-training knowledge editing (KE) for language models to ensure that knowledge remains accurate and up-to-date.
Approach: They propose to use a GradSim indicator to detect when and why updated knowledge ripples in language models.
Outcome: The proposed indicator GradSim shows that LMs that fail to handle ripple effects have low GradSIM.
Sparse Black-Box Multimodal Attack for Vision-Language Adversary Generation (2023.findings-emnlp)

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Challenge: Existing adversarial attacks using imperceptible perturbations are challenging to simulate . e-commerce product restrictions and hate speech monitoring are examples of such attacks .
Approach: They propose a black-box adversarial attack that leverages sparse perturbations to simulate adversarials exhibited by illegal merchants in the black- box scenario.
Outcome: The proposed method outperforms existing attacks and unimodal attacks by treating images and text in discrete space and outperforming existing models.
Controllable Contrastive Generation for Multilingual Biomedical Entity Linking (2023.emnlp-main)

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Challenge: Multilingual biomedical entity linking (MBEL) aims to map language-specific mentions in biomedically text to standardized concepts in a multilingual knowledge base (KB).
Approach: They propose a prompt-based controllable contrastive generation framework for MBEL which summarizes multidimensional information of the UMLS concept mentioned in biomedical text into a natural sentence following a predefined template.
Outcome: The proposed framework matches against UMLS concepts in as many languages and types as possible, thus facilitating cross-information disambiguation.
Predicting Text Preference Via Structured Comparative Reasoning (2024.acl-long)

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Challenge: Existing approaches to comparative reasoning rely on pretraining or fine-tuning models at the cost of massive human annotation and computation.
Approach: They propose a model that prompts LLMs to generate structured intermediate comparisons by proposing aspects for comparison, followed by generating textual comparisons under each aspect.
Outcome: The proposed model significantly reduces hallucination and improves consistency across various NLP tasks.
Editing the Moving World: Model Editing for Video LLMs (2026.acl-long)

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Challenge: Existing models for knowledge editing focus on knowledge-level or static visual domains, overlooking dynamic semantics.
Approach: They propose a benchmark for modeling large language models using six representative models . they analyze the strengths and limitations of existing models and identify new directions .
Outcome: The proposed benchmark extends existing models from static modalities to dynamic video scenarios.
MARCH: Multi-Agent Reinforced Check for Hallucination (2026.acl-long)

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Challenge: Existing methods to detect hallucinations suffer from inherent confirmation bias, where the verifier inadvertently reproduces the errors of the original generation.
Approach: They propose a framework that enforces rigorous factual alignment by leveraging deliberate *information asymmetry* by combining a pipeline of three specialized agents: a Solver, a Proposer, and a Checker.
Outcome: Extensive experiments across hallucination benchmarks demonstrate that MARCH substantially reduces hallucinism rates.
From Specific-MLLMs to Omni-MLLMs: A Survey on MLLMs Aligned with Multi-modalities (2025.findings-acl)

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Challenge: MLLMs are able to integrate multiple modalities into a single model to tackle complex tasks in real-world scenarios.
Approach: They propose a comprehensive survey of Omni-MLLMs to address the challenges and opportunities of multimodal modeling.
Outcome: The proposed model can integrate multiple modalities into a single model and provide novel perspectives.
Rethinking the Roles of Large Language Models in Chinese Grammatical Error Correction (2025.acl-industry)

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Challenge: Recent studies have shown that Large Language Models’ performance as correctors on Chinese Grammatical Error Correction (CGEC) remains unsatisfactory due to the challenging nature of the task.
Approach: They propose a training framework EXAM that uses LLMs as explainers to enhance CGEC small models and a novel evaluation method SEE that utilizes LLM as evaluators to bring more reasonable evaluations.
Outcome: The proposed methods improve the performance of LLMs on Chinese Grammatical Error Correction (CGEC) task.
OMIBench: Benchmarking Olympiad-Level Multi-Image Reasoning in Large Vision-Language Models (2026.acl-long)

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Challenge: Existing multimodal reasoning benchmarks for large vision-language models emphasize single-image analysis and fail to exploit contextual information across multiple images.
Approach: They propose a benchmark to evaluate Olympiad-level reasoning when evidence is distributed over multiple images.
Outcome: The proposed model outperforms existing models on bi-image Olympiads and Gemini-3-Pro on multimodal Olympiad-level reasoning tasks.
CGIM: A Cycle Guided Interactive Learning Model for Consistency Identification in Task-oriented Dialogue (2022.coling-1)

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Challenge: Consistency identification in task-oriented dialog usually consists of three subtasks . a proposed model for consistency identification in dialog is based on an explicit interaction paradigm .
Approach: They propose a cycle guided interactive learning model that makes information exchange explicit from all the three tasks.
Outcome: The proposed model achieves state-of-the-art performance pushing the overall score to 56.3% (5.0% point absolute improvement)
WebAgent-R1: Training Web Agents via End-to-End Multi-Turn Reinforcement Learning (2025.emnlp-main)

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Challenge: Existing work on reinforcement learning has focused on single-turn tasks such as solving math problems.
Approach: They propose a framework that learns directly from online interactions by asynchronously generating diverse trajectories, guided by binary rewards depending on task success.
Outcome: Experiments on the WebArena-Lite benchmark show that the framework outperforms state-of-the-art methods and strong proprietary models.
What You Say and How You Say It Matters: Predicting Stock Volatility Using Verbal and Vocal Cues (P19-1)

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Challenge: Existing studies have shown that textual information in a firm’s financial statement can be used to predict its stock’s risk level.
Approach: They propose to model CEO’s verbal (from text) and vocal (from audio) information in a conference call.
Outcome: The proposed model reduces the error rate by comparing CEO’s verbal and vocal information in a conference call with other models.
End-to-end Task-oriented Dialogue: A Survey of Tasks, Methods, and Future Directions (2023.emnlp-main)

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Challenge: End-to-end task-oriented dialogue (EToD) can generate responses in an end-to end fashion without modular training, which attracts escalating popularity.
Approach: They present a systematic review of EToD and propose a unified perspective to summarize existing approaches and recent trends.
Outcome: The proposed approaches can generate responses in an end-to-end fashion without modular training, which attracts escalating popularity.
Improved Visual Story Generation with Adaptive Context Modeling (2023.findings-acl)

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Challenge: a recent work shows that diffusion models generate images of high resolution and semantic consistency to text prompts.
Approach: They propose a method that uses adaptive context modeling to improve leading system . they evaluate their method on pororoSV and FlintstonesSV datasets .
Outcome: The proposed method achieves state-of-the-art FID scores on pororo and Flintstones datasets.
How do Language Models Reshape Entity Alignment? A Survey of LM-Driven EA Methods: Advances, Benchmarks, and Future (2025.emnlp-main)

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Challenge: Entity alignment (EA) is critical for knowledge graph (KG) integration.
Approach: They propose a taxonomy that categorizes methods in three stages: data preparation, feature embedding, and alignment.
Outcome: The proposed taxonomy categorizes methods in three key stages: data preparation, feature embedding, and alignment.
InFoBench: Evaluating Instruction Following Ability in Large Language Models (2024.findings-acl)

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Challenge: Existing methods for evaluating Large Language Models (LLMs) ability to follow instructions have not been able to provide a detailed analysis of their compliance with instructions.
Approach: They propose a new metric for evaluating Large Language Models' ability to follow instructions and a benchmark for DRFR.
Outcome: The proposed metric and benchmark compared with traditional scoring methods and explores annotation sources including human experts, crowd-sourced workers, and GPT-4.
ReflectRM: Boosting Generative Reward Models via Self-Reflection within a Unified Judgment Framework (2026.acl-long)

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Challenge: Existing methods for generating reward models focus on outcome-level supervision, neglecting analytical process quality, which constrains their potential.
Approach: They propose a novel reward model that leverages self-reflection to assess analytical quality and enhance preference modeling.
Outcome: The proposed model improves performance on four benchmarks and significantly mitigates positional bias.
EgoMemory: Memory-Augmented Personalized Retrieval for Long-Context Egocentric Video (2026.findings-acl)

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Challenge: Existing egocentric video datasets do not support the personalization and long-context reasoning required for episodic memory retrieval.
Approach: They propose a benchmark framework that uses MLLMs and reflective Chain-of-Thought to ground user queries in personal memory explicitly.
Outcome: The proposed framework outperforms state-of-the-art benchmarks on three benchmarks . it can be used to generate detailed target video descriptions in long-context contexts based on user-specific object annotations enriched with user-specified object annotation data .
MCP-Guard: A Multi-Stage Defense-in-Depth Framework for Securing Model Context Protocol in Agentic AI (2026.findings-acl)

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Challenge: Large Language Models (LLMs) are vulnerable to jailbreak, authors say . authors propose a robust, layered defense architecture designed for LLM–tool interactions .
Approach: They propose a robust, layered defense architecture designed for LLM–tool interactions . they propose XCP-Guard, which employs a three-stage detection pipeline .
Outcome: The proposed model achieves 96.01% accuracy in identifying adversarial prompts . the model is based on a three-stage detection pipeline that balances efficiency with accuracy .
WebAnchor: Anchoring Agent Planning to Stabilize Long-Horizon Web Reasoning (2026.findings-acl)

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Challenge: Existing methods for reinforcement learning (RL)-based agents struggle with long-horizon planning and strategy coherence.
Approach: They propose a reinforcement learning framework that decouples planning and execution.
Outcome: The proposed framework outperforms baseline and first-step RL frameworks on four benchmarks.
UNO Arena for Evaluating Sequential Decision-Making Capability of Large Language Models (2024.emnlp-main)

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Challenge: Existing LLMs demonstrate powerful capabilities between tasks, but can they make sequential decisions?
Approach: They propose to evaluate sequential decision-making capability of large language models (LLMs) using novel metrics based Monte Carlo methods.
Outcome: The proposed benchmark improves sequential decision-making performance compared to the vanilla LLM player.
TimeBench: A Comprehensive Evaluation of Temporal Reasoning Abilities in Large Language Models (2024.acl-long)

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Challenge: Grasping the concept of time is a fundamental facet of human cognition.
Approach: They propose a hierarchical temporal reasoning benchmark that covers a broad spectrum of temporal phenomena.
Outcome: The proposed benchmark shows that state-of-the-art LLMs are still far behind humans in temporal reasoning .
Navigate through Enigmatic Labyrinth A Survey of Chain of Thought Reasoning: Advances, Frontiers and Future (2024.acl-long)

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Challenge: Recent studies have revealed that chain-of-thought prompting significantly enhances LLM’s reasoning capabilities, which attracts widespread attention from both academics and industry.
Approach: They propose to summarize advanced methods through a taxonomy that offers novel perspectives.
Outcome: The proposed method delineates the challenges and future directions, thereby shedding light on future research.
Similarity = Value? Consultation Value-Assessment and Alignment for Personalized Search (2025.emnlp-main)

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Challenge: Existing methods rely on semantic similarity to align historical consultations with current queries due to the absence of ‘value’ labels, but this lacks exploration of needs in user consultations.
Approach: They propose a consultation value assessment framework that evaluates historical consultations from three novel perspectives: (1) Scenario Scope Value, (2) Posterior Action Value, and (3) Time Decay Value.
Outcome: The proposed model outperforms baselines on public and commercial datasets on both retrieval and ranking tasks.
Explanation-aware Soft Ensemble Empowers Large Language Model In-context Learning (2024.acl-long)

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Challenge: Recent advances in natural language processing (NLP) have witnessed the remarkable capabilities of Large Language Models (LLMs).
Approach: They propose an Explanation-Aware Soft Ensemble framework to empower in-context learning with Large language models.
Outcome: The proposed framework can be used to enhance in-context learning on seven natural language understanding tasks and four varying-size LLMs.
BeamAggR: Beam Aggregation Reasoning over Multi-source Knowledge for Multi-hop Question Answering (2024.acl-long)

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Challenge: Large language models (LLMs) have demonstrated strong reasoning capabilities, but they still suffer from factual errors when tackling knowledge-intensive tasks.
Approach: They propose a reasoning framework for knowledge-intensive multi-hop QA that prioritizes promising answers at each hop of question.
Outcome: The proposed framework outperforms SOTA methods on four open-domain multi-hop reasoning datasets by 8.5%.
Learning Fine-Grained Grounded Citations for Attributed Large Language Models (2024.findings-acl)

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Challenge: despite impressive performance, large language models still struggle with hallucinations . current approaches suffer from suboptimal citation quality due to reliance on in-context learning .
Approach: They propose a framework that teaches large language models to generate fine-grained citations.
Outcome: The proposed framework outperforms all baselines on the ALCE benchmark and achieves an average improvement of 14.21% in citation quality.
LMOD: A Large Multimodal Ophthalmology Dataset and Benchmark for Large Vision-Language Models (2025.findings-naacl)

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Challenge: Existing benchmarks for large vision-language models (LVLMs) are limited to ophthalmology-specific applications.
Approach: They introduce a large-scale multimodal ophthalmology benchmark consisting of 21,993 instances across five ocular imaging modalities and 13 state-of-the-art LVLM representatives from closed-source, open-source and medical domains.
Outcome: The proposed model shows significant performance drop in ophthalmology compared to other domains.
Enhancing Open-Domain Task-Solving Capability of LLMs via Autonomous Tool Integration from GitHub (2025.acl-long)

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Challenge: Existing approaches lack flexibility to address diverse and ever-evolving user queries in open domains.
Approach: They propose to evaluate LLMs on open-domain knowledge that requires tools to solve diverse and ever-evolving user queries.
Outcome: The proposed system outperforms baselines in the open domain task-solving benchmark.
NeuroLogic A*esque Decoding: Constrained Text Generation with Lookahead Heuristics (2022.naacl-main)

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Challenge: Existing paradigms for text generation are left-to-right decoding from autoregressive language models.
Approach: They propose a decoding algorithm that incorporates heuristic estimates of future cost that are efficient for large-scale language models.
Outcome: The proposed method outperforms baselines on five generation tasks and achieves new state-of-the-art performance on table-to-text generation, constrained machine translation, and keyword-constrained generation.

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