Evaluation of supervised classification algorithms for human activity recognition with inertial sensors

Tahmina Zebin, Patricia J. Scully, Krikor B. Ozanyan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)
15 Downloads (Pure)

Abstract

The main aim of this work is to compare the performance of different algorithms for human activity recognition by extracting various statistical time domain and frequency domain features from the inertial sensor data. Our results show that Support Vector Machines with quadratic kernel classifier (accuracy: 93.5%) and Ensemble classifier with bagging and boosting (accuracy: 94.6%) outperforms other known activity classification algorithms. A parallel coordinate plot based on visualization of features is used to identify useful features or predictors for separating classes. This enabled exclusion of features that contribute least to classification accuracy in a multi-sensor system (five in our case), made the classifier lightweight in terms of number of useful features, training time and computational load and lends itself to real-time implementation.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-3
Number of pages3
Volume2017-December
ISBN (Electronic)9781509010127
DOIs
Publication statusPublished - 21 Dec 2017
Externally publishedYes
Event16th IEEE SENSORS Conference - Glasgow, United Kingdom
Duration: 30 Oct 20171 Nov 2017

Conference

Conference16th IEEE SENSORS Conference
Abbreviated titleICSENS 2017
Country/TerritoryUnited Kingdom
CityGlasgow
Period30/10/171/11/17

Keywords

  • Classification
  • Feature Selection
  • Human Activity Recognition (HAR)
  • MATLAB
  • Supervised Machine Learning

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