Bayesian Quantum Orthogonal Neural Networks for Anomaly Detection
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913807475933184 |
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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 |