IRC-safe Graph Autoencoder for unsupervised anomaly detection

Atkinson, O., Bhardwaj, A., Englert, C. , Konar, P., Ngairangbam, V. S. and Spannowsky, M. (2022) IRC-safe Graph Autoencoder for unsupervised anomaly detection. Frontiers in Artificial Intelligence, 5, 943135. (doi: 10.3389/frai.2022.943135) (PMID:35937137) (PMCID:PMC9352857)

Abstract

Anomaly detection through employing machine learning techniques has emerged as a novel powerful tool in the search for new physics beyond the Standard Model. Historically similar to the development of jet observables, theoretical consistency has not always assumed a central role in the fast development of algorithms and neural network architectures. In this work, we construct an infrared and collinear safe autoencoder based on graph neural networks by employing energy-weighted message passing. We demonstrate that whilst this approach has theoretically favorable properties, it also exhibits formidable sensitivity to non-QCD structures.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Atkinson, Mr Oliver and Bhardwaj, Dr Akanksha and Englert, Professor Christoph
• Authors: Atkinson, O., Bhardwaj, A., Englert, C., Konar, P., Ngairangbam, V. S., and Spannowsky, M.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Frontiers in Artificial Intelligence
• Publisher: Frontiers Media
• ISSN: 2624-8212
• ISSN (Online): 2624-8212
• Copyright Holders: Copyright © 2022 Atkinson, Bhardwaj, Englert, Konar, Ngairangbam and Spannowsky
• First Published: First published in Frontiers in Artificial Intelligence 5: 943135
• Publisher Policy: Reproduced under a Creative Commons License
• Data DOI: 10.5281/zenodo.2603256

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
313214		STFC Glasgow Physics 2020 DTP	David Ireland	Science and Technology Facilities Council (STFC)	ST/V506692/1	P&S - Physics & Astronomy
306883		Research in Particle Physics Theory - Phenomenology from lattice QCD and collider physics	Christine Davies	Science and Technology Facilities Council (STFC)	ST/T000945/1	P&S - Physics & Astronomy
311961		BSM interference effects in Higgs and Top-associated final states.	Christoph Englert	Leverhulme Trust (LEVERHUL)	RPG-2021-031	P&S - Physics & Astronomy