Quantum Split Neural Network Learning using Cross-Channel Pooling
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In recent years, quantum has been attracted by various fields such as quantum machine learning, quantum communication, and quantum computers. Among them, quantum federated learning (QFL) has recently received increasing attention, where quantum neural networks (QNNs) are integrated into federated learning (FL). In contrast to the existing QFL methods, we propose quantum split learning (QSL), which is the extension version of split learning. In classical computing, split learning has shown many advantages in faster convergence, communication cost, and even privacy. To fully utilize QSL, we propose crosschannel pooling which leverages the unique nature of quantum state tomography that is made by QNN. In numerical results, we corroborate that QSL achieves not only 1.64 privacy-preserving in the MNIST classification task.
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