Zilong Zheng
2 indexed papers
Recent (6 mo)
2With code
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0Publications per year
226
Top categories
NLP×1AI×1Info Retrieval×1
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Research Timeline
2026
Xetrieval: Mechanistically Explaining Dense Retrieval
Xetrieval introduces an embedding-level framework to mechanistically explain dense retrieval decisions by decomposing high-dimensional embeddings into sparse, human-interpretable features.
The Flip Side of RLHF: On-Policy Feedback for Reward Model Self-Supervised Improvement
The paper introduces SAVE, a framework that uses on-policy feedback and the value function to self-supervise and improve reward models, significantly enhancing RLHF performance across multiple benchmarks.
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Papers
cs.CLRecentMay 29, 2026
The Flip Side of RLHF: On-Policy Feedback for Reward Model Self-Supervised Improvement
Xiaobo Wang, Tong Wu, Min Tang, Jiaqi Li +2 more
The paper introduces SAVE, a framework that uses on-policy feedback and the value function to self-supervise and improve reward models, significantly enhancing RLHF performance across multiple benchma…
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cs.AIcs.IRRecentMay 28, 2026