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Personalizing Smartwatch Based Activity Recognition Using Transfer Learning

2019-09-03 14:13:49
Karanpreet Singh, Rajen Bhatt
arXiv_AI
         
Abstract

Smartwatches are increasingly being used to recognize human daily life activities. These devices may employ different kind of machine learning (ML) solutions. One of such ML models is Gradient Boosting Machine (GBM) which has shown an excellent performance in the literature. The GBM can be trained on available data set before it is deployed on any device. However, this data set may not represent every kind of human behavior in real life. For example, a ML model to detect elder and young persons running activity may give different results because of differences in their activity patterns. This may result in decrease in the accuracy of activity recognition. Therefore, a transfer learning based method is proposed in which user-specific performance can be improved significantly by doing on-device calibration of GBM by just tuning its parameters without retraining its estimators. Results show that this method can significantly improve the user-based accuracy for activity recognition.

Abstract (translated)

URL

https://arxiv.org/abs/1909.01202

PDF

https://arxiv.org/pdf/1909.01202.pdf

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