Andrew Smith wrote on 4/3/09 6:42 PM:
> I just tried it out and it seems to work fine. I didn't try the Perl
> stuff, just swish-e executable itself. The ordering of results is the
> same (for both -R 0 and -R 1) for raw scores and normalized scores.
> Although interestingly the raw scores have max value around 100 for
> the default ranking scheme (-R 0) but max value around 18000 for IDF
> (-R 1) --- does that sound right? In any case, looks fine to me.
thanks for checking, Andrew.
Yes, those numbers sound right. I would expect the -R 1 numbers to vary widely
depending on the size of the document collection. -R 0 numbers won't. Also the
ordering of the two schemes will vary based on the query of course. Try
searching for 'the' for example.
Peter Karman . http://peknet.com/ . peter(at)not-real.peknet.com
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Received on Sat Apr 4 23:50:00 2009