Author

Pheng-Ann Heng

3 papers indexed here

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#natural language process... Preprint Oct 2026

RSIPO: Recursive Self-Improving Policy Optimization for Agentic Reinforcement Learning via Skill-Policy Co-Evolution

Recent focus in agentic reinforcement learning (RL) seeks to improve credit assignment in long-horizon tasks. One promising direction combines reinforcement learning with verifiable rewards (RLVR) and on-policy self-distillation (OPSD), integrating trajectory-level advantages with dense token-level supervision. This li...

Fan Zhang, Hao Wu, Jin-Yang Wu et al. · 0 citations

#artificial intelligence Preprint Oct 2026

MedZERO: Self-Evolving Agents for Open-Ended Medical Reasoning Through Controlled Knowledge Accumulation

This work presents MedZERO, a self-evolving framework for open-ended medical reasoning that couples an Examiner that generates frontier medical question-option pairs with a Reasoner that solves them through evidence-grounded multi-turn reasoning with external knowledge tools.

Xi-Lin Dang, Wei-Lin Ruan, Xue-Xia Yang et al. · 1 citation

Preprint Sep 2026

Towards Scalable Context-Aware Single-Cell Spatial Transcriptomics Prediction from Histology Images

Predicting gene expression from H&E-stained histology images offers a scalable alternative to costly spatial transcriptomics, yet most existing methods operate at the spot level, where signals from multiple cells are aggregated and critical cellular heterogeneity is obscured. Extending this paradigm to single-cell reso...

Zi-Jun Gao, Chun-Bin Gu, Jin-Xi Xiang et al. · 0 citations