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Tensorized LSTM with adaptive shared memory for learning trends in multivariate time series

Grant US12579436B2 Kind: B2 Mar 17, 2026

Assignee

NEC Corporation

Inventors

Wei Cheng, Haifeng Chen, Jingchao Ni, Dongkuan Xu, Wenchao Yu

Abstract

A method for executing a multi-task deep learning model for learning trends in multivariate time series is presented. The method includes collecting multi-variate time series data from a plurality of sensors, jointly learning both local and global contextual features for predicting a trend of the multivariate time series by employing a tensorized long short-term memory (LSTM) with adaptive shared memory (TLASM) to learn historical dependency of historical trends, and employing a multi-task one-dimensional convolutional neural network (1dCNN) to extract salient features from local raw time series data to model a short-term dependency between local time series data and subsequent trends.

CPC Classifications

G06N 3/08 G06N 3/045 G06N 3/044 G06N 5/04 G06F 18/214 G06F 17/18

Filing Date

2023-08-18

Application No.

18451880

Claims

20