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    Multiclass Classifiers Based on Dimension Reduction with Generalized LDA

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    GT-CSE-06-15.pdf (160.0Kb)
    Date
    2006-01-27
    Author
    Kim, Hyunsoo
    Drake, Barry L.
    Park, Haesun
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    Abstract
    Linear discriminant analysis (LDA) has been widely used for dimension reduction of data sets with multiple classes. The LDA has been recently extended to various generalized LDA methods which are applicable regardless of the relative sizes between the data dimension and the number of data items. In this paper, we propose several multiclass classifiers based on generalized LDA algorithms, taking advantage of the dimension reducing transformation matrix without requiring additional training or any parameter optimization. A marginal linear discriminant classifier, a Bayesian linear discriminant classifier, and a one-dimensional Bayesian linear discriminant classifier are introduced for multiclass classification. Our experimental results illustrate that these classifiers produce higher ten-fold cross validation accuracy than kNN and centroid based classification in the reduced dimensional space providing efficient general multiclass classifiers.
    URI
    http://hdl.handle.net/1853/14430
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    • College of Computing Technical Reports [506]
    • School of Computational Science and Engineering Technical Reports [37]

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