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 language | English |
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Title of host publication | IEEE SENSORS 2017 - Conference Proceedings |
Publisher | The Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1-3 |
Number of pages | 3 |
Volume | 2017-December |
ISBN (Electronic) | 9781509010127 |
DOIs | |
Publication status | Published - 21 Dec 2017 |
Externally published | Yes |
Event | 16th IEEE SENSORS Conference - Glasgow, United Kingdom Duration: 30 Oct 2017 → 1 Nov 2017 |
Conference
Conference | 16th IEEE SENSORS Conference |
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Abbreviated title | ICSENS 2017 |
Country/Territory | United Kingdom |
City | Glasgow |
Period | 30/10/17 → 1/11/17 |
Keywords
- Classification
- Feature Selection
- Human Activity Recognition (HAR)
- MATLAB
- Supervised Machine Learning