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A Novel Feature Extraction Method on Activity Recognition Using Smartphone

  • Dachuan Wang
  • Li Liu
  • Xianlong Wang
  • Yonggang LuEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9998)

Abstract

In the last few years, research on human activity recognition using the built-in sensors of smartphones instead of the body-worn sensors has received much attention. Accelerometer is the most commonly used sensor of smartphone for the application. An important step in activity recognition is feature extraction from the raw acceleration data. In this work, a novel feature extraction method which considers both the distribution and the rate of change of the raw acceleration data is proposed. The raw time series liner acceleration data was collected by a smartphone application developed by ourselves. The proposed feature extraction method is compared with a previously proposed statistics-based feature extraction method using two evaluation methods: (a) distance matrix before clustering, (b) ARI and FM-index after clustering using MCODE. Both results show that the newly proposed feature extraction method is more effective for daily activity recognition than the previously proposed method.

Keywords

Activity recognition Feature extraction Smartphone Unsupervised classification 

Notes

Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grants No. 61272213) and the Fundamental Research Funds for the Central Universities (Grants No. lzujbky-2016-k07). The authors want to thank the volunteers for their time and effort to help us collecting data.

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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  • Dachuan Wang
    • 1
  • Li Liu
    • 2
  • Xianlong Wang
    • 1
  • Yonggang Lu
    • 1
    Email author
  1. 1.School of Information Science and EngineeringLanzhou UniversityGansuChina
  2. 2.School of Software EngineeringChongqing UniversityChongqingChina

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