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Mingxu Chai

5 accepted papers

2026

Does Reinforcement Fine-Tuning Improve Generalization of LLM Agents? An Empirical Study

ICML 2026poster

Reinforcement fine-tuning (RFT) has shown promise for training LLM agents to perform multi-turn decision-making based on environment feedback. However, most existing evaluations remain largely in-domain—training and testing are conducted in the same environment or even on the same tasks. In real-wor…

Cited by 0SourceScholar
2025

DocFusion: A Unified Framework for Document Parsing Tasks

ACL 2025finding

Document parsing involves layout element detection and recognition, essential for extracting information. However, existing methods often employ multiple models for these tasks, leading to increased system complexity and maintenance overhead. While some models attempt to unify detection and recognit…

2025

Governance in Motion: Co-evolution of Constitutions and AI models for Scalable Safety

EMNLP 2025

Aligning large language models (LLMs) with human preferences is a central challenge for building reliable AI systems. Most existing alignment approaches rely on static signals, such as predefined principles or offline human annotations to guide model behavior toward a fixed approximation of human pr

Cited by 0SourcePDFScholar
2025

LLMEval-Med: A Real-world Clinical Benchmark for Medical LLMs with Physician Validation

EMNLP 2025

Evaluating large language models (LLMs) in medicine is crucial because medical applications require high accuracy with little room for error. Current medical benchmarks have three main types: medical exam-based, comprehensive medical, and specialized assessments. However, these benchmarks have limit

2024

Modeling Layout Reading Order as Ordering Relations for Visually-rich Document Understanding

EMNLP 2024main

Modeling and leveraging layout reading order in visually-rich documents (VrDs) is critical in document intelligence as it captures the rich structure semantics within documents.Previous works typically formulated layout reading order as a permutation of layout elements, i.e. a sequence containing al…