Title
Dealing with Imbalanced Data Sets for Human Activity Recognition Using Mobile Phone Sensors.
Abstract
In the recent years, the wide spreading of smart-phones that are daily carried by humans and fit with tens of sensors triggered an intense research activity in human activity recognition (HAR). HAR in smartphones is seen as essential not only to better understand human behavior in daily life but also for context provision to other applications in the smartphone. Many statistical and logical based models for on-line or off-line HAR have been designed, however, the current trend is to use deep-learning with neural network. These models need a high amount of data and, as most discriminative models, they are very sensitive to the imbalanced class problem. In this paper, we study different ways to deal with imbalanced data sets to improve accuracy of HAR with neural networks and introduce a new over-sampling method, called Border Limited Link SMOTE (BLL SMOTE) that improves the classification accuracy of Multi-Layer Perceptron (MLP) performances.
Year
DOI
Venue
2018
10.3233/978-1-61499-874-7-129
INTELLIGENT ENVIRONMENTS 2018
Keywords
DocType
Volume
human activity recognition,smartphone,over-sampling,class imbalance problem,context-aware computing,Ambient Intelligence
Conference
23
ISSN
Citations 
PageRank 
1875-4163
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Ky Trung Nguyen100.34
F Portet250746.23
Catherine Garbay310.69