@techreport{weko_146439_1, author = "Y-H.,Taguchi and Mitsuo,Iwadate and Hideaki,Umeyama", title = "Heuristic principal component analysis-based unsupervised feature extraction applied to gene expression analysis of amyotrophic lateral sclerosis data sets", year = "2015", institution = "Department of Physics, Chuo University, Department of Biological Science, Chuo University, Department of Biological Science, Chuo University", number = "6", month = "sep" }