Author

Yu Zhang

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#machine learning Preprint Sep 2026

EmbodiedMind: Adaptive Data Curation and Prefix-Tree Reinforcement Learning for Efficient Embodied Intelligence

Trie-GRPO, a novel reinforcement learning algorithm based on action prefix trees, which enables step-level advantage estimation, is introduced, which resolves the credit assignment problem by isolating intermediate correct decisions from downstream errors, while effectively balancing exploration efficiency and depth co...

Fei-Fan Wang, Zong-Bing Zhang, Yu Zhang et al. · 0 citations

#artificial intelligence Mar 2026

OpenResearcher: A Fully Open Pipeline for Long-Horizon Deep Research Trajectory Synthesis

OpenResearcher is presented, a reproducible pipeline that decouples one-time corpus bootstrapping from multi-turn trajectory synthesis and executes the search-and-browse loop entirely offline using three explicit browser primitives: search, open, and find, over a 15M-document corpus.

Zhuofeng Li, Dongfu Jiang, Xueguang Ma et al. · arXiv.org · 29 citations · ⚡2

Preprint Sep 2026

CA-OPD: Confidence-Aware On-Policy Distillation for Structured Visual Prediction

Evaluated in a multi-teacher setting for GUI grounding and optical character recognition, CA-OPD substantially improves the Qwen3.5-0.8B baseline across all six target benchmarks, including gains of $9.50$ points on ScreenSpot-Pro and OCRBench-v2 English.

Meng-Hao Li, Lin-Jie Mu, Yin Wang et al. · 2 citations