“…(1997). This subspace method (Hasanuzzaman, M., Zhang, T., Ampornaramveth, V., Bhuiyan, M.A., Shirai, Y. & Ueno, H., 2004a) offers an economical representation and very fast classification for vectors with a high number of components as only the statistically most relevant features of a class are retained in the subspace representation.…”