الباحثون

Siyuan Ma

المنشورات 5

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Linear Fitness Subspace in Protein Language Models Enables Sample-Efficient Directed Evolution

Siyuan Ma, Canran Xiao, Zikai Xiao وآخرون · 2026

Model-guided directed evolution seeks to identify high-fitness protein variants under limited oracle budgets. Protein language models (PLMs) provide rich representations for this task, but task-agnostic zero-shot scores can be misaligned with a target assay, while supervised search in high-dimensional embedding spaces …

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Learning to Outgrow a Theory: Experimental Discovery Beyond the Initial Hypothesis Space

Siyuan Ma, Albert Gao, Chunzheng Zhu وآخرون · 2026

Scientific discovery systems typically optimize experiments within a fixed hypothesis space. This creates a failure mode when all available candidates omit the same missing mechanism: candidate disagreement can collapse even while the model class is systematically wrong. We formulate experimental model-class revision, …

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VOMMI: Collecting and Leveraging Portable Demonstrations for Mobile Manipulation

Yutian Zhang, Xingrui Xiong, Siyuan Ma وآخرون · 2026

Portable mobile-manipulation demonstrations can help alleviate data scarcity for embodied intelligence, but obtaining reliable, low-cost, and robot-free motion supervision from RGB observations remains challenging. Existing approaches often rely on teleoperation or specialized devices equipped with additional sensing h …

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Recursive Harness Self-Improvement for Frontier Reasoning Data Synthesis

Wenlong Zhang, Zhengbo Jiao, Chenxu Zhang وآخرون · 2026

Generating progressively harder reasoning problems requires synthesis procedures that adapt as the task distribution evolves. Existing task-level recursion reuses generated problems as seeds but leaves the construction harness unchanged. We present task-harness co-evolution, a framework for recursive harness self-impro …

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Atomic Motion Coordinate for Language-Steerable and Force-Responsive Manipulation

Jiaqi Zhai, Jingkai Zhao, Chen Yang وآخرون · 2026

Can changing only the language instruction redirect a VLA policy's end effector, or does the visually driven motion prior dominate? We present Atomic Motion Coordinate, a geometry-grounded coordinate for steerable and force-responsive manipulation. Each arm owns thirteen signed translation, rotation, and hold atoms gro …

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