LSI in WEKA

[GUNJIT MISHRA]

I am new to weka. Can anyone plz tell me how to reduce dimension of tf-idf matrix using LSI in weka.

Gunjit Mishra
B-Tech Part III
Computer Science Department,
IT-BHU, Varanasi


_______________________________________________
Wekalist mailing list
Send posts to: Wekalist@...
List info and subscription status: https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist
List etiquette: http://www.cs.waikato.ac.nz/~ml/weka/mailinglist_etiquette.html

[Peter Reutemann-3]

> I am new to weka. Can anyone plz tell me how to reduce dimension of tf-idf
> matrix using LSI in weka.

You can use the LatentSemanticAnalysis attribute evaluator in
conjunction with the Ranker as parameters to the AttributeSelection
filter (package weka.filters.supervised.attribute).

Cheers, Peter
--
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
http://www.cs.waikato.ac.nz/~fracpete/           Ph. [phone]

_______________________________________________
Wekalist mailing list
Send posts to: Wekalist@...
List info and subscription status: https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist
List etiquette: http://www.cs.waikato.ac.nz/~ml/weka/mailinglist_etiquette.html