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Weizhi Ma

8 accepted papers

2026

Doctor-R1: Mastering Clinical Inquiry with Experiential Agentic Reinforcement Learning

ICLR 2026poster

The professionalism of a human doctor in outpatient service depends on two core abilities: the ability to make accurate medical decisions and the medical consultation skill to conduct strategic, empathetic patient inquiry. Existing Large Language Models (LLMs) have achieved remarkable accuracy on me…

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2025

Efficient Dynamic Clustering-Based Document Compression for Retrieval-Augmented-Generation

EMNLP 2025

Retrieval-Augmented Generation (RAG) has emerged as a widely adopted approach for knowledge injection during large language model (LLM) inference in recent years. However, due to their limited ability to exploit fine-grained inter-document relationships, current RAG implementations face challenges i

2025

How Far Can LLMs Improve from Experience? Measuring Test-Time Learning Ability in LLMs with Human Comparison

EMNLP 2025

As evaluation designs of large language models may shape our trajectory toward artificial general intelligence, comprehensive and forward-looking assessment is essential. Existing benchmarks primarily assess static knowledge, while intelligence also entails the ability to rapidly learn from experien

2024

A User-Centric Multi-Intent Benchmark for Evaluating Large Language Models

EMNLP 2024main

Large language models (LLMs) are essential tools that users employ across various scenarios, so evaluating their performance and guiding users in selecting the suitable service is important. Although many benchmarks exist, they mainly focus on specific predefined model abilities, such as world knowl…

2024

Jointly Modeling Spatio-Temporal Features of Tactile Signals for Action Classification

AAAI 2024technical

Tactile signals collected by wearable electronics are essential in modeling and understanding human behavior. One of the main applications of tactile signals is action classification, especially in healthcare and robotics. However, existing tactile classification methods fail to capture the spatial…

2021

Graph Heterogeneous Multi-Relational Recommendation

AAAI 2021technical

Traditional studies on recommender systems usually leverage only one type of user behaviors (the optimization target, such as purchase), despite the fact that users also generate a large number of various types of interaction data (e.g., view, click, add-to-cart, etc). Generally, these heterogeneous…

2020

BERT-PLI: Modeling Paragraph-Level Interactions for Legal Case Retrieval

IJCAI 2020poster

Legal case retrieval is a specialized IR task that involves retrieving supporting cases given a query case. Compared with traditional ad-hoc text retrieval, the legal case retrieval task is more challenging since the query case is much longer and more complex than common keyword queries. Besides tha…