Quantum Long Short-Term Memory
October 13, 2020
Long short-term memory (LSTM) is a kind of recurrent neural networks (RNN) for sequence and temporal dependency data modeling and its effectiveness has been extensively established. In this talk, I would introduce a hybrid quantum-classical model of LSTM, which we dub QLSTM. The proposed model successfully learns several kinds of temporal data. In addition, this quantum version of LSTM converges faster, or equivalently, reaches a better accuracy, than its classical counterpart. Due to the variational nature of our approach, the requirements on qubit counts and circuit depth are eased, and this work thus paves the way toward implementing machine learning algorithms for sequence modeling on noisy intermediate-scale quantum (NISQ) devices.
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