Bayesian Quantum Orthogonal Neural Networks for Anomaly Detection

Fuente: arXiv
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Bibliographic Details
Main Authors: Mathur, Natansh, Coyle, Brian, Jain, Nishant, Raj, Snehal, Tandon, Akshat, Krauser, Jasper Simon, Stoessel, Rainer
Format: Preprint
Published: 2025
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author Mathur, Natansh
Coyle, Brian
Jain, Nishant
Raj, Snehal
Tandon, Akshat
Krauser, Jasper Simon
Stoessel, Rainer
author_facet Mathur, Natansh
Coyle, Brian
Jain, Nishant
Raj, Snehal
Tandon, Akshat
Krauser, Jasper Simon
Stoessel, Rainer
contents Identification of defects or anomalies in 3D objects is a crucial task to ensure correct functionality. In this work, we combine Bayesian learning with recent developments in quantum and quantum-inspired machine learning, specifically orthogonal neural networks, to tackle this anomaly detection problem for an industrially relevant use case. Bayesian learning enables uncertainty quantification of predictions, while orthogonality in weight matrices enables smooth training. We develop orthogonal (quantum) versions of 3D convolutional neural networks and show that these models can successfully detect anomalies in 3D objects. To test the feasibility of incorporating quantum computers into a quantum-enhanced anomaly detection pipeline, we perform hardware experiments with our models on IBM's 127-qubit Brisbane device, testing the effect of noise and limited measurement shots.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18103
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bayesian Quantum Orthogonal Neural Networks for Anomaly Detection
Mathur, Natansh
Coyle, Brian
Jain, Nishant
Raj, Snehal
Tandon, Akshat
Krauser, Jasper Simon
Stoessel, Rainer
Quantum Physics
Machine Learning
Identification of defects or anomalies in 3D objects is a crucial task to ensure correct functionality. In this work, we combine Bayesian learning with recent developments in quantum and quantum-inspired machine learning, specifically orthogonal neural networks, to tackle this anomaly detection problem for an industrially relevant use case. Bayesian learning enables uncertainty quantification of predictions, while orthogonality in weight matrices enables smooth training. We develop orthogonal (quantum) versions of 3D convolutional neural networks and show that these models can successfully detect anomalies in 3D objects. To test the feasibility of incorporating quantum computers into a quantum-enhanced anomaly detection pipeline, we perform hardware experiments with our models on IBM's 127-qubit Brisbane device, testing the effect of noise and limited measurement shots.
title Bayesian Quantum Orthogonal Neural Networks for Anomaly Detection
topic Quantum Physics
Machine Learning
url https://arxiv.org/abs/2504.18103