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Zhenfei Yin

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Preprint Oct 2026

Arm-wise Compositional Generalization in Dual-Arm Vision-Language-Action Models

Generalization in multi-arm collaboration can be studied as composing familiar atomic skills in new ways across arms. However, existing evaluations offer limited insight into which training and architectural choices support this ability under different coordination requirements. We introduce \textbf{ACG-Bench}, a bench...

Zai-Bin Zhang, Bing-Hao Ran, Yu-Han Wu et al. · 0 citations
Preprint Aug 2026

LatticeMind: A Conflict-Aware Memory Primitive for Multi-Agent Systems

LatticeMind is presented, a conflict-aware structured memory that handles contradiction at write time, which maintains explicit item status, applies cheap symbolic conflict checks, and invokes LLM reconciliation only for unresolved semantic cases.

Heng Zhou, Lian Zhang, Yutao Fan et al. · 0 citations
Preprint Aug 2026

SKT: Skill-Use Training at Scale via Verified Synthetic Data Generation

Experiments across diverse models, benchmarks, and agent harnesses show that supervised fine-tuning on SKT-generated trajectories consistently improves skill-use performance, establishing verified data synthesis as an effective and scalable approach for skill-use training.

Zelin Tan, Yi-Qun Zhang, Hao Li et al. · 2 citations
Preprint Aug 2026

MA-VLA: Multi-Arm Vision-Language-Action Model for Collaboration and Compositional Generalization

MA-VLA decomposes cooperative behavior into mid-level atomic prompts and allocates them to individual arms, enabling explicit subgoal specification and compositional reuse across tasks and indicates that structured, per-arm atomic action assignment offers a practical route to scalable generalization in multi-arm embodi...

Zai-Bin Zhang, Jun-Lan Xiao, Zhong-Bo Zhang et al. · 4 citations

SciOrch: Learning to Orchestrate Expert LLMs for Solving Frontier Multimodal Scientific Reasoning Tasks

SciOrch is presented, a framework that trains a lightweight 8B model to orchestrate frontier LLMs for scientific reasoning, and attains the best accuracy on both SGI and SFE with less than half the API cost of typical multi-agent methods.

Jingru Guo, Xiangyuan Xue, Lian Zhang et al. · 0 citations

Stabilizing Rubric Integration Training via Decoupled Advantage Normalization

We propose Process-Aware Policy Optimization (PAPO), a method that integrates process-level evaluation into Group Relative Policy Optimization (GRPO) through decoupled advantage normalization, to address two limitations of existing reward designs. Outcome reward models (ORM) evaluate only final-answer correctness, trea...

Zelin Tan, Zhouliang Yu, Bo-Cheng Lin et al. · 4 citations

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