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Author Topic: Probabilistic Feature Selection  (Read 1356 times)
misaghb
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Posts: 7


« on: August 28, 2008, 01:56:46 PM »


Hi all,

Assume I have an example set with m samples and n features.
I have weighted these n features with a statistical weighting method (like Gini, Chi-squared, InfoGain, etc.).
Now I have n normalized weighted features.
How can I probabilistically choose p features from these n features? (p << n)  // p is very smaller than n
I want each feature have a probability to be chosen amongst these p features and this probability should be its normalized weight.

Can anybody help me?
Please help me find the operator tree to solve this problem.

Thanks in advance.
-- Misagh.
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