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20242026
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cs.CL2026

An Interactive Paradigm for Deep Research

Lin Ai, Victor S. Bursztyn, Xiang Chen +2

Recent advances in large language models (LLMs) have enabled deep research systems that synthesize comprehensive, report-style answers to open-ended queries by combining retrieval,…

cs.CL2025

Mitigating Forgetting Between Supervised and Reinforcement Learning Yields Stronger Reasoners

Xiangchi Yuan, Xiang Chen, Tong Yu +4

Large Language Models (LLMs) show strong reasoning abilities, often amplified by Chain-of-Thought (CoT) prompting and reinforcement learning (RL). Although RL algorithms can substa…

cs.CL2025

A Penalty Goes a Long Way: Measuring Lexical Diversity in Synthetic Texts Under Prompt-Influenced Length Variations

Vijeta Deshpande, Ishita Dasgupta, Uttaran Bhattacharya +3

Synthetic text generated by Large Language Models (LLMs) is increasingly used for further training and improvement of LLMs. Diversity is crucial for the effectiveness of synthetic…

cs.CL2025

CodeLutra: Boosting LLM Code Generation via Preference-Guided Refinement

Leitian Tao, Xiang Chen, Tong Yu +4

Large Language Models (LLMs) have revolutionized code generation but require significant resources and often over-generalize, limiting their task-specific efficiency. Fine-tuning s…

cs.CL2025

Detecting Ambiguities to Guide Query Rewrite for Robust Conversations in Enterprise AI Assistants

Md Mehrab Tanjim, Xiang Chen, Victor S. Bursztyn +8

Multi-turn conversations with an Enterprise AI Assistant can be challenging due to conversational dependencies in questions, leading to ambiguities and errors. To address this, we…