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SLAC National Accelerator Laboratory

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Representative Papers

Unknown Unknowns: Model Misspecification in Machine Learning for Physics

Aug 13, 2026

This study addresses the risks of unknown unknowns arising from model misspecification in physical inverse problems by proposing an iterative diagnosis and mitigation framework. Treating misspecification as an opportunity for discovery, this work establishes a closed-loop detection-mitigation analytical paradigm that integrates complementary diagnostics, iterative updating, and robustness analysis strategies. Consequently, this research develops a systematic methodology for managing unknown unknowns, effectively enhancing model robustness against unforeseen biases and significantly improving the reliability of physical measurements. Ultimately, the proposed framework provides a novel safety assurance mechanism for solving complex inverse problems, ensuring greater confidence in computational reconstructions where model fidelity cannot be fully guaranteed a priori.

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Latest Papers

Unknown Unknowns: Model Misspecification in Machine Learning for Physics

Aug 13, 2026

This study addresses the risks of unknown unknowns arising from model misspecification in physical inverse problems by proposing an iterative diagnosis and mitigation framework. Treating misspecification as an opportunity for discovery, this work establishes a closed-loop detection-mitigation analytical paradigm that integrates complementary diagnostics, iterative updating, and robustness analysis strategies. Consequently, this research develops a systematic methodology for managing unknown unknowns, effectively enhancing model robustness against unforeseen biases and significantly improving the reliability of physical measurements. Ultimately, the proposed framework provides a novel safety assurance mechanism for solving complex inverse problems, ensuring greater confidence in computational reconstructions where model fidelity cannot be fully guaranteed a priori.

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