Abstract
This paper presents an human sensing (HS) system based on Hidden Markov Models (HMMs) for classifying physical activities: walking, walking-upstairs, walking-downstairs, sitting, standing and lying down. The system includes a feature extractor (developed by the authors and presented in a previous work), an HMMs training module and an HAR module. All experiments have been done using a publicly available dataset named UCI Human Activity Recognition Using Smartphones. The final results using HMMs obtain comparable results to other recognition methods. Some improvements have been obtained when considering a discriminative HMM training procedure. The best result obtains an activity recognition error rate (ARER) of 2.5%. This work is focused on independent activity recognition and extends other works from the same authors focused on activity segmentation and feature extraction.
Translated title of the contribution | Monitoreo de actividad humana basado en modelos ocultos de Markov utilizando un teléfono inteligente |
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Original language | English (US) |
Pages (from-to) | 1-5 |
Journal | Instrumentation & Measurement |
Volume | 19 |
Issue number | 19 |
DOIs | |
State | Published - 12 Dec 2016 |
Keywords
- Hidden markov models
- Training
- Feature extraction
- Error analysis
- Computational modeling
- Human factors
CACES Knowledge Areas
- 116A Computer Science