Papers by Xinke Jiang

9 papers
TC–RAG: Turing–Complete RAG’s Case study on Medical LLM Systems (2025.acl-long)

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Challenge: Existing approaches to RAG neglect system state variables, resulting in poor performance and erroneous knowledge accumulation.
Approach: They propose a framework that incorporates a Turing Complete System to manage state variables and manage retrieval halting.
Outcome: The proposed framework improves on seven real-world healthcare datasets and shows that it is more accurate than existing methods.
3DS: Medical Domain Adaptation of LLMs via Decomposed Difficulty-based Data Selection (2025.emnlp-main)

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Challenge: Effective domain adaptation typically involves supervised fine-tuning on carefully selected instruction-tuned data.
Approach: They propose a model-centric data selection framework that aligns data selection with the model’s knowledge distribution to improve model performance.
Outcome: The proposed framework outperforms existing methods by up to 2.97% accuracy in the healthcare domain.
GRAIT: Gradient-Driven Refusal-Aware Instruction Tuning for Effective Hallucination Mitigation (2025.findings-naacl)

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Challenge: Experimental evaluations on open-ended and multiple-choice questions demonstrate GRAIT significantly outperforms existing RAIT methods in the overall performance.
Approach: They propose a framework to reduce the risk of over-refusal and reduce hallucinations by rejecting unknown questions to minimize hallucinism and ensuring correct answers are not rejected.
Outcome: The proposed framework outperforms existing methods on open-ended and multiple-choice questions.
HyKGE: A Hypothesis Knowledge Graph Enhanced RAG Framework for Accurate and Reliable Medical LLMs Responses (2025.acl-long)

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Challenge: Recent approaches suffer from insufficient and repetitive knowledge retrieval, tedious and time-consuming query parsing, and monotonous knowledge utilization.
Approach: They propose a retrieval-augmented generation framework which leverages LLMs’ powerful reasoning capacity to compensate for the incompleteness of user queries.
Outcome: The proposed framework improves the accuracy and reliability of Large Language Models (LLMs) by combining the rich knowledge of LLMs with Hypothesis Outputs.
FaiMA: Feature-aware In-context Learning for Multi-domain Aspect-based Sentiment Analysis (2024.lrec-main)

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Challenge: Existing methods for aspect-based sentiment analysis are limited and integrating with existing techniques is difficult.
Approach: They propose a framework that utilizes in-context learning as a feature-aware mechanism that facilitates adaptive learning in multi-domain ABSA tasks.
Outcome: The proposed framework achieves significant performance improvements in multiple domains compared to baselines, increasing F1 by 2.07% on average.
Parenting: Optimizing Knowledge Selection of Retrieval-Augmented Language Models with Parameter Decoupling and Tailored Tuning (2025.acl-long)

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Challenge: Existing methods for integrating internal and external knowledge lack effective control mechanisms for generating hallucinations and dealing with outdated knowledge.
Approach: They propose a framework that decouples, identifies, and purposefully optimizes parameter subspaces related to adherence and robustness.
Outcome: The proposed framework decouples, identifies, and purposefully optimizes parameter subspaces related to adherence and robustness.
DFAMS: Dynamic-flow guided Federated Alignment based Multi-prototype Search (2026.acl-long)

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Challenge: Existing methods for ambiguous queries struggle to retrieve high-quality documents . DFAMS outperforms advanced FR methods by 14.37% in knowledge classification accuracy .
Approach: They propose a framework that leverages dynamic information flow to identify latent query intents and construct semantically aligned knowledge partitions for accurate retrieval across heterogeneous sources.
Outcome: The proposed framework outperforms existing methods in classification accuracy and retrieval recall tests.
Trust Within? Seek Beyond? Knowledge Boundary Aware Policy Optimization for Agentic Search (2026.acl-long)

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Challenge: Existing approaches to augment large language models with external knowledge suffer from a lack of calibration regarding the model’s knowledge boundary.
Approach: They propose a reinforcement learning framework that explicitly aligns retrieval decisions with quantified knowledge states.
Outcome: The proposed framework outperforms strong baselines while exhibiting reduced hallucination rates.
ProMed: Shapley Information Gain Guided Reinforcement Learning for Proactive Medical LLMs (2026.acl-long)

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Challenge: Existing medical Large Language Models (LLMs) follow a reactive paradigm, risking diagnostic errors by answering before seeking sufficient details.
Approach: They propose a reinforcement learning framework that transitions LLMs toward a proactive paradigm, enabling them to ask clinically valuable questions before decision-making.
Outcome: Experiments on partial-information medical benchmarks show that ProMed outperforms state-of-the-art methods by 6.29% on average and delivers a 54.45% gain over the reactive paradigm.

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