QuFeX: Quantum feature extraction module for hybrid quantum-classical deep neural networks

• URL: http://arxiv.org/abs/2501.13165v1
• Date: Wed, 22 Jan 2025 19:00:09 GMT
• Title: QuFeX: Quantum feature extraction module for hybrid quantum-classical deep neural networks
• Authors: Naman Jain, Amir Kalev,
• Abstract summary: We introduce Quantum Feature Extraction (QuFeX), a novel quantum machine learning module.<n>QuFeX enables feature extraction in a reduced-dimensional space, significantly decreasing the number of parallel evaluations required in typical quantum convolutional neural network architectures.<n>As an application of QuFeX, we propose Qu-Net -- a hybrid architecture which integrates QuFeX at the bottleneck of a U-Net architecture.
• Score: 1.139490906109446
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We introduce Quantum Feature Extraction (QuFeX), a novel quantum machine learning module. The proposed module enables feature extraction in a reduced-dimensional space, significantly decreasing the number of parallel evaluations required in typical quantum convolutional neural network architectures. Its design allows seamless integration into deep classical neural networks, making it particularly suitable for hybrid quantum-classical models. As an application of QuFeX, we propose Qu-Net -- a hybrid architecture which integrates QuFeX at the bottleneck of a U-Net architecture. The latter is widely used for image segmentation tasks such as medical imaging and autonomous driving. Our numerical analysis indicates that the Qu-Net can achieve superior segmentation performance compared to a U-Net baseline. These results highlight the potential of QuFeX to enhance deep neural networks by leveraging hybrid computational paradigms, providing a path towards a robust framework for real-world applications requiring precise feature extraction.

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