Re: [UAI] Feature selection for clustering

2005-05-27 Thread Monika Ray
Hello, The previous email, mentioned PCA and ICA and their kernel counter parts. Like it sauid, its a good place to start from. But their effectiveness highly depends on how noisy your dataset is and how large is the number of features. SVM-RFE by Isabelle Guyon is known to be very good. Another

RE: [UAI] Feature selection for clustering

2005-05-26 Thread George Paliouras
, May 25, 2005 5:21 PM To: uai@engr.orst.edu Subject: [UAI] Feature selection for clustering Dear all, I'm performing a clustering task and need to reduce the amount of my dataset features (attributes). Looking for a feature selection tool, I've only faced packages for classificatio

Re: [UAI] Feature selection for clustering

2005-05-26 Thread Felix Goldberg
Well, you can use PCA which is a standard tool. (Of course, depending on your problem and the nature and quality of the features the results may range from great to catastrophic). In any case, that's what I'd try first. Another option would be ICA but you need to satisfy some additional statisti

[UAI] Feature selection for clustering

2005-05-25 Thread Estevam Rafael Hruschka Junior
Dear all, I'm performing a clustering task and need to reduce the amount of my dataset features (attributes). Looking for a feature selection tool, I've only faced packages for classification. As I do not have the class information (in my dataset) I am not able to use them. Do you know about