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Bibliographic Details
Main Authors: Park, Junghoon Justin, Pak, Maria, Lee, Sebin, Chen, Samuel Yen-Chi, Yoo, Shinjae, Tseng, Huan-Hsin, Cha, Jiook
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.23578
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Table of Contents:
  • Quantum machine learning models for sequential data face scalability challenges with complex multivariate signals. We introduce the Hybrid Quantum Temporal Convolutional Network (HQTCN), which combines classical temporal windowing with a quantum convolutional neural network core. By applying a shared quantum circuit across temporal windows, HQTCN captures long-range dependencies while achieving significant parameter reduction. Evaluated on synthetic NARMA sequences and high-dimensional EEG time-series, HQTCN performs competitively with classical baselines on univariate data and outperforms all baselines on multivariate tasks. The model demonstrates particular strength under data-limited conditions, maintaining high performance with substantially fewer parameters than conventional approaches. These results establish HQTCN as a parameter-efficient approach for multivariate time-series analysis.