Journal of Northeastern University(Natural Science) ›› 2022, Vol. 43 ›› Issue (6): 776-782.DOI: 10.12068/j.issn.1005-3026.2022.06.003

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A Transfer Learning Algorithm Applied to Human Activity Recognition

ZHAO Hai, CHEN Jia-wei, SHI Han, WANG Xiang   

  1. School of Computer Science & Engineering, Northeastern University, Shenyang 110169, China.
  • Revised:2021-07-29 Accepted:2021-07-29 Published:2022-07-01
  • Contact: CHEN Jia-wei
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Abstract: Collecting wearable motion sensor signals and using transfer learning to overcome the inconsistency of data distribution to identify the daily behavior of the human body are very popular technologies. Using wearable sensors to collect signals will result in generating noise samples that affect the transfer effect. Traditional algorithms lack the processing of these samples. To solve this problem, the traditional algorithm was improved by introducing a sample screening algorithm based on Mahalanobis distance, and a transfer learning algorithm T-WMD was proposed that can be used for human activity recognition. And compared with other five algorithms on two public human activity recognition data sets, the results show that the algorithm proposed in this paper can effectively improve the effect of transfer learning.

Key words: physiological signal; human activity recognition; transfer learning; body area network; machine learning

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