Evaluating Parameter-Based Training Performance of Neural Networks and Variational Quantum Circuits

• URL: http://arxiv.org/abs/2504.07273v1
• Date: Wed, 09 Apr 2025 21:00:41 GMT
• Title: Evaluating Parameter-Based Training Performance of Neural Networks and Variational Quantum Circuits
• Authors: Michael Kölle, Alexander Feist, Jonas Stein, Sebastian Wölckert, Claudia Linnhoff-Popien,
• Abstract summary: Variational quantum circuits (VQCs) offer a promising alternative to neural networks (NNs)<n>VQCs leverage quantum mechanics to capture intricate relationships and typically need fewer parameters.<n>We show that VQCs can match NNs in performance while using significantly fewer parameters, despite longer training durations.
• Score: 43.528848176938844
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In recent years, neural networks (NNs) have driven significant advances in machine learning. However, as tasks grow more complex, NNs often require large numbers of trainable parameters, which increases computational and energy demands. Variational quantum circuits (VQCs) offer a promising alternative: they leverage quantum mechanics to capture intricate relationships and typically need fewer parameters. In this work, we evaluate NNs and VQCs on simple supervised and reinforcement learning tasks, examining models with different parameter sizes. We simulate VQCs and execute selected parts of the training process on real quantum hardware to approximate actual training times. Our results show that VQCs can match NNs in performance while using significantly fewer parameters, despite longer training durations. As quantum technology and algorithms advance, and VQC architectures improve, we posit that VQCs could become advantageous for certain machine learning tasks.

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