When Should an AI Scientist Stop? Verifiable Experiment Steering and Refusal for Autonomous Discovery
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Computer Science > Machine Learning
arXiv:2606.07576 (cs)
[Submitted on 26 May 2026]
Title:When Should an AI Scientist Stop? Verifiable Experiment Steering and Refusal for Autonomous Discovery
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Abstract:We present CARTOGRAPH, a verification layer for AI scientists that couples unresolved-subspace experiment steering (select), explicit ambiguity closure (resolve), and residual-based library inadequacy detection (refuse). Under a local linear-Gaussian bridge, raw unresolved projection is the isotropic unresolved Fisher-information trace, while CARTOGRAPH-A is the exact unresolved A-optimal rule; closed-form EIG and Box-Hill arise as local comparators rather than global equivalents. Across five testbeds, CARTOGRAPH-A beats raw projection 129W/0T/15L at d = 8 (p < 10^-21) in a replicated structured cascade. More distinctively, the framework tentatively identifies three out-of-library pharmacokinetic mechanisms and then revokes those identifications as residuals expose structural misfit, while one perturbed in-library control stays identified throughout. In low-dimensional pharmacokinetic and filtered EPA settings, near-ties against disagreement are predicted by theory and observed. Finally, in a retrospective audit of 40 positive claims from the published A-Lab autonomous materials system, the refuse guard flags all 4 claims later marked inconclusive under manual reanalysis while passing 32/36 confirmed claims. Code is available at this https URL
| Comments: | Accepted at AI for Science Workshop at ICML 2026 |
| Subjects: | Machine Learning (cs.LG); Emerging Technologies (cs.ET); Multiagent Systems (cs.MA) |
| Cite as: | arXiv:2606.07576 [cs.LG] |
| (or arXiv:2606.07576v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2606.07576
arXiv-issued DOI via DataCite (pending registration)
|
Submission history
From: Neel Tushar Shah [view email][v1] Tue, 26 May 2026 18:19:16 UTC (2,066 KB)
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