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Author

Zhizhang Fu

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#artificial intelligence Preprint Sep 2026

Semifactual Credit-Augmented Policy Optimization

Reinforcement learning with verifiable rewards (RLVR) has improved the reasoning capabilities of large language models (LLMs), yet their predictions remain sensitive to task-irrelevant prompt features. We investigate this sensitivity through semifactual prompt interventions that preserve the underlying problem and its...

Jun-Shu Pan, Zhi-Zhang Fu, Shu-Lin Huang et al. · 0 citations
Review Aug 2026

Can Retrievers Find the Same Paper from Different Aspects? A Multi-Aspect Full-Paper Scientific Retrieval Benchmark

An expert-validated benchmark for multi-aspect, full-paper retrieval that evaluates whether retrievers can consistently recover the same paper from queries targeting its motivation, method, and experimental findings, and proposes MAPLE-Synth, a retrieval-based in-context learning pipeline that leverages OpenReview disc...

Yiyang Wei, Fang Guo, Qiji Zhou et al. · 0 citations

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