Exploring Optimal Transport for Event-Level Anomaly Detection at the Large Hadron Collider
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866916319635439616 |
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| author | Craig, Nathaniel Howard, Jessica N. Li, Hancheng |
| author_facet | Craig, Nathaniel Howard, Jessica N. Li, Hancheng |
| contents | Anomaly detection is a promising, model-agnostic strategy to find physics beyond the Standard Model. State-of-the-art machine learning methods offer impressive performance on anomaly detection tasks, but interpretability, resource, and memory concerns motivate considering a wide range of alternatives. We explore using the 2-Wasserstein distance from optimal transport theory, both as an anomaly score and as input to interpretable machine learning methods, for event-level anomaly detection at the Large Hadron Collider. The choice of ground space plays a key role in optimizing performance. We comment on the feasibility of implementing these methods in the L1 trigger system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_15542 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exploring Optimal Transport for Event-Level Anomaly Detection at the Large Hadron Collider Craig, Nathaniel Howard, Jessica N. Li, Hancheng High Energy Physics - Phenomenology Anomaly detection is a promising, model-agnostic strategy to find physics beyond the Standard Model. State-of-the-art machine learning methods offer impressive performance on anomaly detection tasks, but interpretability, resource, and memory concerns motivate considering a wide range of alternatives. We explore using the 2-Wasserstein distance from optimal transport theory, both as an anomaly score and as input to interpretable machine learning methods, for event-level anomaly detection at the Large Hadron Collider. The choice of ground space plays a key role in optimizing performance. We comment on the feasibility of implementing these methods in the L1 trigger system. |
| title | Exploring Optimal Transport for Event-Level Anomaly Detection at the Large Hadron Collider |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2401.15542 |