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    STUDIA INFORMATICA - Issue no. Sp.Issue 1 / 2009  
         
  Article:   SEMI-SUPERVISED FEATURE SELECTION WITH SVMS.

Authors:  ZALÁN BODÓ, ZSOLT MINIER. 		 
       
         
  Abstract:   Feature selection plays and important role in machine learning: eliminates irrelevant dimensions thus turning the learner into a better, more efficient system. In this paper we use non-linear semi-supervised SVMs for feature selection and through experiments we demonstrate the efficiency of the methods, showing how unlabeled data can lead to a better reduction. Semi-supervised feature selection is achieved by using semi-supervised/cluster kernels, that is embedding the information provided by the unlabeled data into the kernel, andapplying dimensionality reduction methods developed for non-linear SVMs.

Key words and phrases. semi-supervised learning, feature selection, kernel methods. 		 
         
     
         
         
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