الباحثون

Albert Gao

المنشورات 3

نسخة أولية وصول مفتوح

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 …

نسخة أولية وصول مفتوح

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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