Institution profile

SLAC National Accelerator Laboratory

Academic institutionnorthamerica · us
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Research library16linked papers
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Selected work

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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Contrastive Learning for Interpretable Anomaly Detection at Collider Experiments

Aug 13, 2026

This study addresses the challenges of score interpretability and strong energy dependence in collider anomaly detection by proposing the ORCA framework. Integrating supervised contrastive learning with autoencoders, this method constructs a geometric embedding space to generate anomaly scores while enabling template-fitting attribution and uncertainty quantification. Experimental results demonstrate that ORCA significantly enhances sensitivity to new physics searches, accurately recovers signal yields, and effectively characterizes unknown signal features. Consequently, this work establishes a novel paradigm for high-energy physics anomaly detection that successfully combines high performance with robust interpretability, overcoming limitations inherent in previous approaches.

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Recent publications

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.

0 citationsRead paper

Contrastive Learning for Interpretable Anomaly Detection at Collider Experiments

Aug 13, 2026

This study addresses the challenges of score interpretability and strong energy dependence in collider anomaly detection by proposing the ORCA framework. Integrating supervised contrastive learning with autoencoders, this method constructs a geometric embedding space to generate anomaly scores while enabling template-fitting attribution and uncertainty quantification. Experimental results demonstrate that ORCA significantly enhances sensitivity to new physics searches, accurately recovers signal yields, and effectively characterizes unknown signal features. Consequently, this work establishes a novel paradigm for high-energy physics anomaly detection that successfully combines high performance with robust interpretability, overcoming limitations inherent in previous approaches.

0 citationsRead paper