Author

Tianyi Zhuang

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#machine learning Preprint Sep 2026

Architecture Alignment With Sparse Priors in Tabular Foundation Models

Tabular foundation models (TFMs) are increasingly popular because they deliver strong predictions on new datasets through in-context learning, without task-specific training or extensive tuning. Yet released TFMs differ simultaneously in their pretraining priors, architectures, and objectives, obscuring their respectiv...

Tian-Qi Zhao, Tian-Yi Zhuang, Shuo Duan et al. · 0 citations

Preprint Aug 2026

Beyond Outcome Rewards: Step-Level Self-Distilled Policy Optimization for Deep Search Agents

Evidence Anchors are constructed, which are concise, step-level evidence snippets extracted from the web, as privileged information that captures key reasoning steps without revealing the entire answer path, and SSPO, which converts teacher-student disagreement into step-level advantage weights within GRPO, applied exc...

Haoze Wu, Chu-Qiao Kuang, Tian-Yi Zhuang et al. · 1 citation