Title
Ant colony optimization-based feature selection method for surface electromyography signals classification.
Abstract
This paper presented a new ant colony optimization (ACO) feature selection method to classify hand motion surface electromyography (sEMG) signals. The multiple channels of sEMG recordings make the dimensionality of sEMG feature grow dramatically. It is known that the informative feature subset with small size is a precondition for the accurate and computationally efficient classification strategy. Therefore, this study proposed an ACO based feature selection scheme using the heuristic information measured by the minimum redundancy maximum relevance criterion (ACO-mRMR). The experiments were conducted on ten subjects with eight upper limb motions. Two feature sets, i.e., time domain features combined with autoregressive model coefficients (TDAR) and wavelet transform (WT) features, were extracted from the recorded sEMG signals. The average classification accuracies of using ACO reduced TDAR and WT features were 95.45±2.2% and 96.08±3.3%, respectively. The principal component analysis (PCA) was also conducted on the same data sets for comparison. The average classification accuracies of using PCA reduced TDAR and WT features were 91.51±4.9% and 89.87±4.4%, respectively. The results demonstrated that the proposed ACO-mRMR based feature selection method can achieve considerably high classification rates in sEMG motion classification task and be applicable to other biomedical signals pattern analysis.
Year
DOI
Venue
2012
10.1016/j.compbiomed.2011.10.004
Comp. in Bio. and Med.
Keywords
DocType
Volume
surface electromyography,feature selection scheme,feature selection method,ant colony,wt feature,computationally efficient classification strategy,semg feature,recorded semg signal,feature set,average classification accuracy,high classification rate,optimization-based feature selection method,informative feature subset
Journal
42
Issue
ISSN
Citations 
1
1879-0534
16
PageRank 
References 
Authors
0.88
30
4
Name
Order
Citations
PageRank
Hu Huang1254.28
Hongbo M Xie213712.22
Jingyi Guo329111.92
Huijuan Chen4171.57