search for: svmrfe

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2009 Apr 01
0
feature selection problem,urgent help need
...problem in feature selection I would be thankful if you can help me. I have a dataset with limited samples (for example 100) and a lot of features (for example 3000) and i have to do feature selection. if i use cross validation (for example *10 fold*) i rank the features based on 90 samples (using svmrfe method) i achieve ranked feature for example {f2,f4,f1,f3,...} (it means f2 is ranked first with svmrfe) now, I want to know how many features i should use? so i should compute the performance for n feature selected from first of the ranked list and compute the performance of it. for example trai...