Papers by Jing Jin

15 papers
Two Pathways to Truthfulness: On the Intrinsic Encoding of LLM Hallucinations (2026.acl-long)

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Challenge: Previous work shows that large language models generate hallucinations, yet the origins and mechanisms of these signals remain unclear.
Approach: They propose to validate and disentangle two different pathways for truthfulness cues . they also propose to use the same mechanism to derive self-contained evidence from the generated answer .
Outcome: The proposed applications improve hallucination detection performance by integrating two different inputs.
Locate, Steer, and Improve: A Practical Survey of Actionable Mechanistic Interpretability in Large Language Models (2026.findings-acl)

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Challenge: Existing literature on mechanistic interpretation (MI) treats it as an observational science, leaving practical applications underexplored.
Approach: They propose a survey structured around the pipeline to identify and improve MI models.
Outcome: The proposed framework enables tangible improvements in Alignment, Capability, and Efficiency.
LLMs are Biased Evaluators But Not Biased for Fact-Centric Retrieval Augmented Generation (2025.findings-acl)

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Challenge: Recent studies have shown that large language models (LLMs) exhibit significant biases in evaluation tasks, especially in preferentially rating and favoring self-generated content.
Approach: They propose to simulate two critical phases of retrieval-augmented generation (RAG) frameworks where keyword extraction and factual accuracy take precedence over stylistic elements.
Outcome: The proposed model emulates two critical phases of the retrieval-augmented generation framework.
Musical Score Understanding Benchmark: Evaluating Large Language Models’ Comprehension of Complete Musical Scores (2026.acl-long)

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Challenge: Existing benchmarks for musical score understanding are narrow in scope, focusing on isolated fragments, short excerpts, or multiple-choice formulations, rather than supporting holistic reasoning over entire scores.
Approach: They propose a benchmark for score-level musical understanding across textual and visual modalities.
Outcome: The musical score understanding benchmark contains 1,800 question-answer pairs from works by Bach, Beethoven, Chopin, Debussy, and others.
Trajectory2Task: Training Robust Tool-Calling Agents with Synthesized Yet Verifiable Data for Complex User Intents (2026.acl-long)

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Challenge: Tool-calling agents are increasingly deployed in real-world customer-facing workflows . but most studies on tool-callers focus on idealized settings with general, fixed, and well-specified tasks.
Approach: They propose a tool-calling agent-based data pipeline that converts trajectories into user-facing tasks with controlled intent adaptations.
Outcome: The proposed pipeline can be used to study tool use under three scenarios.
Select High-quality Synthetic QA Pairs to Augment Training Data in MRC under the Reward Guidance of Generative Language Models (2024.lrec-main)

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Challenge: Existing approaches focus on downstream metrics to select QA pairs, which lack generalization across different datasets.
Approach: They propose a general selection method that uses a large pre-trained language model as a reward model in a Reinforcement Learning framework for the training of the selection agent.
Outcome: The proposed method improves performance on generative and extractive datasets.
Efficient Cross-modal Prompt Learning with Semantic Enhancement for Domain-robust Fake News Detection (2025.coling-main)

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Challenge: Existing MFND methods conduct cross-modal information interaction at later stage, resulting in weak generalization ability.
Approach: They propose an automatic multi-modal fake news detection method that exploits cross-modal information interaction at later stage.
Outcome: The proposed method outperforms state-of-the-art methods on three MFND benchmarks.
Attention Weights as an Indicator: Analyzing and Improving Document Utilization in Retrieval-Augmented Generation (2026.acl-long)

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Challenge: In traditional RAG models, documents are grouped into categories based on their quality and order, and the quality of inputs is variable due to ineffective retrievers or misalignment between the retriever and generator.
Approach: They propose to use attention weights to enhance document utilization from three perspectives: document ranking, placement, and filtering.
Outcome: The proposed method outperforms baselines and improves document utilization effectiveness in a training-free manner.
MIND Your Reasoning: A Meta-Cognitive Intuitive-Reflective Network for Dual-Reasoning in Multimodal Stance Detection (2026.acl-long)

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Challenge: Existing methods operate by learning to fuse modalities, leading to frequent misjudgments.
Approach: They propose a paradigm shift from *learning to fuse* to *learning the reason's process' inspired by the dual-process theory of human cognition, MIND operationalizes a self-improving loop.
Outcome: The proposed model significantly outperforms baseline models and exhibits strong generalization.
MLeVLM: Improve Multi-level Progressive Capabilities based on Multimodal Large Language Model for Medical Visual Question Answering (2024.findings-acl)

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Challenge: Existing MVQA models ignore multi-level progressive capabilities due to unspecific data and plain architecture.
Approach: They propose a multi-level visual language model for medical visual question answering (MVQA) which covers multi- level questions and answers as well as reasoning processes from visual clues to semantic cognition.
Outcome: The proposed model outperforms existing medical multimodal large language models on a multi-level instruction dataset and a feature alignment module.
S2-MAD: Breaking the Token Barrier to Enhance Multi-Agent Debate Efficiency (2025.naacl-long)

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Challenge: Large language models exhibit limitations when handling complex mathematical reasoning and logical inference tasks.
Approach: They propose a sparsification strategy to reduce token costs within Multi-agent Debate (MAD) this strategy minimizes ineffective exchanges of information and unproductive discussions among agents .
Outcome: The proposed approach reduces token costs by up to 94.5% while maintaining performance degradation below 2.0%.
DVD: Dynamic Contrastive Decoding for Knowledge Amplification in Multi-Document Question Answering (2024.emnlp-main)

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Challenge: Large language models (LLMs) generate information with hallucinations due to uneven retrieval quality and irrelevant contents.
Approach: They propose a decoding strategy which dynamically amplifies knowledge from selected documents during the generation phase.
Outcome: The proposed method outperforms other decoding strategies on ALCE-ASQA, NQ, TQA and PopQA benchmarks.
Can Graph Neural Networks Learn Language with Extremely Weak Text Supervision? (2025.acl-long)

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Challenge: Graph Neural Networks (GNNs) with CLIP pipeline are difficult because of the scarcity of labeled data and text supervision, different levels of downstream tasks, and conceptual gaps between domains.
Approach: They propose a multi-modal prompt learning paradigm to adapt pre-trained GNNs to downstream tasks with weak text supervision.
Outcome: The proposed model can generalize graphs to unseen classes with weak text supervision.
CodeDPO: Aligning Code Models with Self Generated and Verified Source Code (2025.acl-long)

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Challenge: Existing training methods for code generation do not improve code correctness and efficiency.
Approach: They propose a framework that integrates preference learning into code generation to improve code correctness and efficiency.
Outcome: The proposed framework improves code correctness and efficiency by integrating preference learning into code generation.
Safety Alignment via Constrained Knowledge Unlearning (2025.acl-long)

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Challenge: Existing defense mechanisms have not fully deleted harmful knowledge in large language models (LLMs) Existing methods to address safety alignment have not completely deleted harmful information in LLMs.
Approach: They propose a safety alignment strategy that uses scoring neurons to identify useful knowledge in LLMs and pruning the gradients of neurons in U to preserve beneficial information.
Outcome: The proposed method significantly improves model safety while maintaining utility compared to existing methods.

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