Class Imbalance Techniques for High Energy Physics
High Energy Physics - Phenomenology
2019-12-17 v2 High Energy Physics - Experiment
Machine Learning
Abstract
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 scattering, and (2) the decay of the Higgs boson to charm-quark pairs.
Cite
@article{arxiv.1905.00339,
title = {Class Imbalance Techniques for High Energy Physics},
author = {Christopher W. Murphy},
journal= {arXiv preprint arXiv:1905.00339},
year = {2019}
}
Comments
v2: 22 pages, 4 figures, 3 tables, matches journal version