Feature selection trouble with ranking

Posted on 2007-07-11 08:21:59-07 by hgoebber

Hello! I try to apply Feature selection to my training set prior to training the learner but it seems to me like the FeatureSelector sizes the feature vector down to a set portion of the total it does so randomly instead of ranking the features and only cutting of those features with the lowest scores. Several trys left Features with value 1 in the system despite higher ranked features being present who got cut off. Any ideas?

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Posted on 2007-07-11 09:50:06-07 by hgoebber in response to 5680

Re: Feature selection trouble with ranking

Never mind. THis seems to be working correctly. I'm still confused by the supposed workflow of the Framework though. That is when the feature selection is taking place, when it influences the documents in the knowledgeset and similar. I'm currently working around that which is not quite the purpose of a framework.

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