Hi Henning, Yeah, I got reviewers who want me to use BM25F since I cannot beat BM25 with the other models that PF/Tijah offers. I have an xquery that does some relevance boosting after the results are returned, so I guess BM25F can be used by post-processing the runs. I was also wondering whether anyone tried pseudo-relevance feedback with PF/Tijah? junte On Wed, Jun 2, 2010 at 12:26 PM, <Henning.Rode@cwi.nl> wrote:
hej Junte,
you mean you would like to use/test the BM25F retrieval model? If you set the option <TijahOptions ir-model="OKAPI"/> PF/Tijah uses the BM25 retrieval model. I cannot say at the moment if it is an implementation of BM25F. You need to ask Djoerd in that case, since he implemented the OKAPI retrieval model.
best -henning
I was wondering whether it would be possible to use BM25F? http://trec.nist.gov/pubs/trec13/papers/microsoft-cambridge.web.hard.pdf
Anyone else tried this before with an XQuery?
junte
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