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cs.CL2026

Hint-Guided Diversified Policy Optimization for LLM Reasoning

Zhiyu Cao, Kaixin Wu, Mingjie Zhong +4

Recent developments in Large Language Models (LLMs) have showcased impressive reasoning capabilities, with Reinforcement Learning with Verifiable Rewards (RLVR) being a promising e…

cs.CL2026

DraDDP: A Multimodal Multi-Party Dialogue Discourse Parsing Dataset

Shannan Liu, Peifeng Li, Yaxin Fan +1

Multi-party dialogue discourse parsing aims to identify dependency structures and relation types between utterances in conversations. Previous studies are mostly limited to textual…

cs.CL2026

Discourse Coherence and Response-Guided Context Rewriting for Multi-Party Dialogue Generation

Zhiyu Cao, Peifeng Li, Qiaoming Zhu

Previous research on multi-party dialogue generation has predominantly leveraged structural information inherent in dialogues to directly inform the generation process. However, th…

cs.CL2026

Multi-Faceted Self-Consistent Preference Alignment for Query Rewriting in Conversational Search

Zhiyu Cao, Peifeng Li, Qiaoming Zhu

Conversational Query Rewriting (CQR) aims to rewrite ambiguous queries to achieve more efficient conversational search. Early studies have predominantly focused on the rewriting in…

cs.CL2025

ICR: Iterative Clarification and Rewriting for Conversational Search

Zhiyu Cao, Peifeng Li, Qiaoming Zhu

Most previous work on Conversational Query Rewriting employs an end-to-end rewriting paradigm. However, this approach is hindered by the issue of multiple fuzzy expressions within…

cs.CL2025

Incomplete Utterance Rewriting with Editing Operation Guidance and Utterance Augmentation

Zhiyu Cao, Peifeng Li, Yaxin Fan +1

Although existing fashionable generation methods on Incomplete Utterance Rewriting (IUR) can generate coherent utterances, they often result in the inclusion of irrelevant and redu…