I've done some testing with the example docs and it behaves similar when there is a zero doc boost. Luke, however, does not show me the index-time boosts. Bost document and field boosts are not visible in Luke's output. I've changed doc boost and field boosts for the mp500.xml document but all i ever see returned is boost=1.0. Is this correct?
Anyway, i'm looking at Nutch now for reasons why i sends a zero boost on a docuement. On Thursday 04 November 2010 14:16:22 Yonik Seeley wrote: > On Thu, Nov 4, 2010 at 8:04 AM, Markus Jelsma > > <markus.jel...@openindex.io> wrote: > > The question remains, why does the title field return a fieldNorm=0 for > > many queries? > > Because the index-time boost was set to 0 when the doc was indexed. I > can't say how that happened... look to your indexing code. > > > And a subquestion, does the luke request handler return boost values > > for documents? I know i get boost values for fields but i haven't seen > > boost values for documents. > > The doc boost is just multiplied into each field boost and doesn't > have a separate representation in the index. > > -Yonik > http://www.lucidimagination.com -- Markus Jelsma - CTO - Openindex http://www.linkedin.com/in/markus17 050-8536600 / 06-50258350
