Title
Hidden Fatigue Detection for a Desk Worker Using Clustering of Successive Tasks.
Abstract
To detect fatigue of a desk worker, this paper focuses on fatigue hidden in smiling and neutral faces and employs a periodic short time monitoring setting. In contrast to continual monitoring, the setting assumes that each short-time monitoring (in this paper, it is called a task) is conducted only during a break time. However, there are two problems: the small number of data in each task and the increasing number of tasks. To detect fatigue, the authors propose a method which is a combination of multi-task learning, clustering and anomaly detection. For the first problem, the authors employ multi-task learning which builds a specific classifier to each task efficiently by using information shared among tasks. Since clustering gathers similar tasks into a cluster, it mitigates the influence of the second problem. Experiments show that the proposed method exhibits a high performance in a long-term monitoring.
Year
DOI
Venue
2015
10.1007/978-3-319-26005-1_18
AMBIENT INTELLIGENCE, AMI 2015
Keywords
Field
DocType
Face monitoring,Anomaly detection,Incremental clustering,Multi-task learning
Small number,Anomaly detection,Multi-task learning,Simulation,Computer science,Cluster analysis,Classifier (linguistics),Periodic graph (geometry),Desk
Conference
Volume
ISSN
Citations 
9425
0302-9743
0
PageRank 
References 
Authors
0.34
9
2
Name
Order
Citations
PageRank
Yutaka Deguchi1223.66
Einoshin Suzuki285393.41