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Zheng-Zong Chen

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#natural language process... Preprint Sep 2026

Think Thrice Before Reranking: Multi-perspective Evidence and Reasoning Integration for Text Reranking

MERIT-Rank is proposed, a framework that models complementary reasoning trajectories to improve reranking robustness and develops Progressive Rank Policy Optimization (PRPO), a progressive training framework that stabilizes reasoning trajectories while continually improving ranking quality through staged optimization o...

Li-Jun Liu, Zheng-Zong Chen, Wen-Yan Li et al. · 0 citations

#artificial intelligence Preprint Sep 2026

MATCH: Model-Aware Tool Learning with Curriculum Scheduling and Hierarchically Gated Rewards

This work proposes MATCH, a closed-loop framework for model-aware tool learning with curriculum scheduling and hierarchically gated rewards, and shows consistent improvements across four backbones from two model families.

Shihao Liu, Hao Yin, Li-Jun Liu et al. · 0 citations

#natural language process... Preprint Sep 2026

Explore Before Committing: Hypothesis-Guided Search for Deep Research Agents

HypoSearch is proposed, which generates lightweight hypotheses as soft search hints, explores them through bounded independent branches, and compares branch-level evidence before commitment, and consistently outperforms single-trajectory search and standard parallel baselines.

Ruo-Chen Zhou, Zheng-Zong Chen, Luan Zhang et al. · 1 citation