CHU Mao-xiang, WANG An-na, GONG Rong-fen. Improvement on Least Squares Twin Support Vector Machine for Pattern Classification[J]. Acta Electronica Sinica, 2014, 42(5): 998-1003.
CHU Mao-xiang, WANG An-na, GONG Rong-fen. Improvement on Least Squares Twin Support Vector Machine for Pattern Classification[J]. Acta Electronica Sinica, 2014, 42(5): 998-1003. DOI: 10.3969/j.issn.0372-2112.2014.05.026.
Widely weighted least squares twin support vector machine (WWLSTSVM) is proposed for pattern classification.In WWLSTSVM
weights are widely added on error variables of data samples both in one class and the other.This widely weighted method is especially effective on eliminating the interference of intercrossing noise samples.Moreover
a regularization term is added with the theory of maximizing margin
in which the structural risk is minimized and the possible ill-conditioning is avoided for matrix inversion.Also
an effective weight algorithm with exponential function is proposed to reduce the time complexity of computing weight values and enhance its robustness for cross plane dataset.Comparative experiments show that WWLSTSVM obtains better results on eliminating the interference of noise samples and higher classification accuracy with less computing time in both linear and nonlinear cases compared with the other classifiers.