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Seoul National University
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VLA policies can now reliably select action prefixes by predicting task completion compatibility, not just generation stability.
Current PXRD-to-structure models achieve a 44.2% Top-1 match rate on experimental data, but still struggle significantly with generalization to unseen structural prototypes and recovery from two-phase mixtures.
A simple sampling trick unlocks task completion in world action models, slashing incomplete imaginations by over 50%.
Domain-specific agent evaluation no longer requires manual ground-truth curation: autonomous research and verification loops constrained by reusable expert rules yield grading rubrics that professional analysts prefer over expert baselines.