15–17 Jan 2020
Kimmel Center for University Life
America/New_York timezone

Metrics and Machine Learning Algorithms for Collider Space

16 Jan 2020, 10:39
20m
KC 802 (Kimmel Center for University Life)

KC 802

Kimmel Center for University Life

60 Washington Square S, New York, NY 10012

Speaker

Ms Tianji Cai (University of California, Santa Barbara)

Description

When the space of collider events is equipped with a metric, many simple-to-use machine learning algorithms can be applied to perform the task of jet tagging. Here we explore several different generalizations of the Energy Mover’s Distance. The computed distance matrices are fed into both supervised and unsupervised learning models, and their performances in distinguishing various types of jets are quantified and compared. This in turn offers an estimate on the suitability of the metrics themselves for the underlying event space at hand, aiding the selection of the most appropriate metric-model pair. The framework thus paves the way for future applications of metric-based machine learning for collider physics.

Authors

Ms Tianji Cai (University of California, Santa Barbara) Prof. Nathaniel Craig (University of California, Santa Barbara)

Presentation materials