Typical Machine Learning Datasets as Low-Depth Quantum Circuits

Fuente: arXiv
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Auteurs principaux: Kiwit, Florian J., Jobst, Bernhard, Luckow, Andre, Pollmann, Frank, Riofrío, Carlos A.
Format: Preprint
Publié: 2025
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author Kiwit, Florian J.
Jobst, Bernhard
Luckow, Andre
Pollmann, Frank
Riofrío, Carlos A.
author_facet Kiwit, Florian J.
Jobst, Bernhard
Luckow, Andre
Pollmann, Frank
Riofrío, Carlos A.
contents Quantum machine learning (QML) is an emerging field that investigates the capabilities of quantum computers for learning tasks. While QML models can theoretically offer advantages such as exponential speed-ups, challenges in data loading and the ability to scale to relevant problem sizes have prevented demonstrations of such advantages on practical problems. In particular, the encoding of arbitrary classical data into quantum states usually comes at a high computational cost, either in terms of qubits or gate count. However, real-world data typically exhibits some inherent structure (such as image data) which can be leveraged to load them with a much smaller cost on a quantum computer. This work further develops an efficient algorithm for finding low-depth quantum circuits to load classical image data as quantum states. To evaluate its effectiveness, we conduct systematic studies on the MNIST, Fashion-MNIST, CIFAR-10, and Imagenette datasets. The corresponding circuits for loading the full large-scale datasets are available publicly as PennyLane datasets and can be used by the community for their own benchmarks. We further analyze the performance of various quantum classifiers, such as quantum kernel methods, parameterized quantum circuits, and tensor-network classifiers, and we compare them to convolutional neural networks. In particular, we focus on the performance of the quantum classifiers as we introduce nonlinear functions of the input state, e.g., by letting the circuit parameters depend on the input state.
format Preprint
id arxiv_https___arxiv_org_abs_2505_03399
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Typical Machine Learning Datasets as Low-Depth Quantum Circuits
Kiwit, Florian J.
Jobst, Bernhard
Luckow, Andre
Pollmann, Frank
Riofrío, Carlos A.
Quantum Physics
Quantum machine learning (QML) is an emerging field that investigates the capabilities of quantum computers for learning tasks. While QML models can theoretically offer advantages such as exponential speed-ups, challenges in data loading and the ability to scale to relevant problem sizes have prevented demonstrations of such advantages on practical problems. In particular, the encoding of arbitrary classical data into quantum states usually comes at a high computational cost, either in terms of qubits or gate count. However, real-world data typically exhibits some inherent structure (such as image data) which can be leveraged to load them with a much smaller cost on a quantum computer. This work further develops an efficient algorithm for finding low-depth quantum circuits to load classical image data as quantum states. To evaluate its effectiveness, we conduct systematic studies on the MNIST, Fashion-MNIST, CIFAR-10, and Imagenette datasets. The corresponding circuits for loading the full large-scale datasets are available publicly as PennyLane datasets and can be used by the community for their own benchmarks. We further analyze the performance of various quantum classifiers, such as quantum kernel methods, parameterized quantum circuits, and tensor-network classifiers, and we compare them to convolutional neural networks. In particular, we focus on the performance of the quantum classifiers as we introduce nonlinear functions of the input state, e.g., by letting the circuit parameters depend on the input state.
title Typical Machine Learning Datasets as Low-Depth Quantum Circuits
topic Quantum Physics
url https://arxiv.org/abs/2505.03399