Class imbalance techniques for high energy physics
A common problem in a high energy physics experiment is extracting a signal from a much larger background. Posed as a classification task, there is said to be an imbalance in the number of samples belonging to the signal class versus the number of samples from the background class. In this work we...
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| Format: | Article |
| Language: | English |
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SciPost
2019-12-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.7.6.076 |
| _version_ | 1819052103192018944 |
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| author | Christopher W. Murphy |
| author_facet | Christopher W. Murphy |
| author_sort | Christopher W. Murphy |
| collection | DOAJ |
| description | A common problem in a high energy physics experiment is extracting a signal from a much larger background.
Posed as a classification task, there is said to be an imbalance in the number of samples belonging to the signal class versus the number of samples from the background class.
In this work we provide a brief overview of class imbalance techniques in a high energy physics setting.
Two case studies are presented: (1) the measurement of the longitudinal polarization fraction in same-sign $WW$ scattering, and (2) the decay of the Higgs boson to charm-quark pairs. |
| first_indexed | 2024-12-21T12:14:30Z |
| format | Article |
| id | doaj.art-a28b5b841ac644b4970c3c4ad02b3fce |
| institution | Directory Open Access Journal |
| issn | 2542-4653 |
| language | English |
| last_indexed | 2024-12-21T12:14:30Z |
| publishDate | 2019-12-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics |
| spelling | doaj.art-a28b5b841ac644b4970c3c4ad02b3fce2022-12-21T19:04:29ZengSciPostSciPost Physics2542-46532019-12-017607610.21468/SciPostPhys.7.6.076Class imbalance techniques for high energy physicsChristopher W. MurphyA common problem in a high energy physics experiment is extracting a signal from a much larger background. Posed as a classification task, there is said to be an imbalance in the number of samples belonging to the signal class versus the number of samples from the background class. In this work we provide a brief overview of class imbalance techniques in a high energy physics setting. Two case studies are presented: (1) the measurement of the longitudinal polarization fraction in same-sign $WW$ scattering, and (2) the decay of the Higgs boson to charm-quark pairs.https://scipost.org/SciPostPhys.7.6.076 |
| spellingShingle | Christopher W. Murphy Class imbalance techniques for high energy physics SciPost Physics |
| title | Class imbalance techniques for high energy physics |
| title_full | Class imbalance techniques for high energy physics |
| title_fullStr | Class imbalance techniques for high energy physics |
| title_full_unstemmed | Class imbalance techniques for high energy physics |
| title_short | Class imbalance techniques for high energy physics |
| title_sort | class imbalance techniques for high energy physics |
| url | https://scipost.org/SciPostPhys.7.6.076 |
| work_keys_str_mv | AT christopherwmurphy classimbalancetechniquesforhighenergyphysics |