Abstract
In recent years, various data are used with the development of IoT (Internet of Things). In similarity search, DTW (Dynamic Time Warping) distance is often used. However, the calculation of the DTW distance has a problem that the amount of calculation becomes enormous. In order to solve this problem, many approaches of algorithm improvement have been proposed. We consider that the DTW distance can be calculated more quickly by using dedicated circuits for various improved algorithms. In this paper, we propose a circuit to calculate the DTW distance. In addition, we perform HSPICE simulation of the proposed circuit.
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