2013/6/17 Olivier Grisel <[email protected]>: >> (also, what is query_id?) > > A integer index for each sample to group the samples into query result > sets when doing learning to rank. This can then be used to generate > pairs of samples on the fly when doing the pairwise learning to rank > reduction.
In pairwise L2R, loss functions are defined on pairs of samples, but only for those pairs that pertain to the same query (since ranking is done per query). So, you need the query information with the samples. However, we don't do L2R at the moment, and it would require new conventions and examples anyway. -- Lars Buitinck Scientific programmer, ILPS University of Amsterdam ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
