Title
Unsupervised learning for human activity recognition using smartphone sensors.
Abstract
•We investigate activity recognition using unsupervised learning, with a smartphone.•The number of activities can be determined by the Caliński–Harabasz index.•The mixture of Gaussian outperforms when the number of activities is known.•The hierarchical clustering and DBSCAN attain above 90% accuracy for appropriate settings.•The study provides an idea for activity recognition methods without training datasets.
Year
DOI
Venue
2014
10.1016/j.eswa.2014.04.037
Expert Systems with Applications
Keywords
Field
DocType
Human activity recognition,Unsupervised learning,Healthcare services,Smartphone sensors,Sensor data analysis
Hierarchical clustering,Data mining,Activity recognition,Computer science,Supervised learning,Unsupervised learning,Gaussian,Artificial intelligence,Machine learning,DBSCAN
Journal
Volume
Issue
ISSN
41
14
0957-4174
Citations 
PageRank 
References 
37
1.02
25
Authors
3
Name
Order
Citations
PageRank
Yongjin Kwon1371.02
Kyuchang Kang212714.39
Changseok Bae316123.90