This paper proposes a new feature extraction scheme, combining global and local features. The proposed method uses principal component analysis (PCA) and linear discriminant analysis (LDA) for global property and locality preserving projections (LPP) for local property of the pattern. PCA and LDA are known for extracting the most descriptive ones after projection while LPP is known for preserving the neighborhood structure of the data set. The proposed combing method integrates global and local descriptive information and finds an efficient set of alternatives beyond PCA, LDA and LPP in the parametric space. Further, In order to find optimal parameters, the genetic algorithm (GA) is employed. Experiments are performed with four data sets selected in UCI machine learning repository to show the performance of the proposed algorithm.

Keywords: PCA, LDA, LPP, GA, Feature space, UCI machine learning repository

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