Transfer learning in hybrid classical-quantum neural networks

We extend the concept of transfer learning, widely applied in modern machine learning algorithms, to the emerging context of hybrid neural networks composed of classical and quantum elements. We propose different implementations of hybrid transfer learning, but we focus mainly on the paradigm in whi...

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Main Authors: Andrea Mari, Thomas R. Bromley, Josh Izaac, Maria Schuld, Nathan Killoran
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2020-10-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2020-10-09-340/pdf/
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author Andrea Mari
Thomas R. Bromley
Josh Izaac
Maria Schuld
Nathan Killoran
author_facet Andrea Mari
Thomas R. Bromley
Josh Izaac
Maria Schuld
Nathan Killoran
author_sort Andrea Mari
collection DOAJ
description We extend the concept of transfer learning, widely applied in modern machine learning algorithms, to the emerging context of hybrid neural networks composed of classical and quantum elements. We propose different implementations of hybrid transfer learning, but we focus mainly on the paradigm in which a pre-trained classical network is modified and augmented by a final variational quantum circuit. This approach is particularly attractive in the current era of intermediate-scale quantum technology since it allows to optimally pre-process high dimensional data (e.g., images) with any state-of-the-art classical network and to embed a select set of highly informative features into a quantum processor. We present several proof-of-concept examples of the convenient application of quantum transfer learning for image recognition and quantum state classification. We use the cross-platform software library PennyLane to experimentally test a high-resolution image classifier with two different quantum computers, respectively provided by IBM and Rigetti.
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spelling doaj.art-0583ea2281974f6297d7a90366f0db432022-12-22T00:49:59ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2020-10-01434010.22331/q-2020-10-09-34010.22331/q-2020-10-09-340Transfer learning in hybrid classical-quantum neural networksAndrea MariThomas R. BromleyJosh IzaacMaria SchuldNathan KilloranWe extend the concept of transfer learning, widely applied in modern machine learning algorithms, to the emerging context of hybrid neural networks composed of classical and quantum elements. We propose different implementations of hybrid transfer learning, but we focus mainly on the paradigm in which a pre-trained classical network is modified and augmented by a final variational quantum circuit. This approach is particularly attractive in the current era of intermediate-scale quantum technology since it allows to optimally pre-process high dimensional data (e.g., images) with any state-of-the-art classical network and to embed a select set of highly informative features into a quantum processor. We present several proof-of-concept examples of the convenient application of quantum transfer learning for image recognition and quantum state classification. We use the cross-platform software library PennyLane to experimentally test a high-resolution image classifier with two different quantum computers, respectively provided by IBM and Rigetti.https://quantum-journal.org/papers/q-2020-10-09-340/pdf/
spellingShingle Andrea Mari
Thomas R. Bromley
Josh Izaac
Maria Schuld
Nathan Killoran
Transfer learning in hybrid classical-quantum neural networks
Quantum
title Transfer learning in hybrid classical-quantum neural networks
title_full Transfer learning in hybrid classical-quantum neural networks
title_fullStr Transfer learning in hybrid classical-quantum neural networks
title_full_unstemmed Transfer learning in hybrid classical-quantum neural networks
title_short Transfer learning in hybrid classical-quantum neural networks
title_sort transfer learning in hybrid classical quantum neural networks
url https://quantum-journal.org/papers/q-2020-10-09-340/pdf/
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AT nathankilloran transferlearninginhybridclassicalquantumneuralnetworks