On Wed, Apr 6, 2011 at 12:00 PM, Shawn Heisey <s...@elyograg.org> wrote: > We aren't yet using dismax in production, but I've had it in my config for a > while now. I've changed it to edismax in the 3.1 setup I'm putting together > now. It has the following in the bf parameter: > > recip(ms(NOW/DAY,pd),3.16e-11,1,1) > > Is there a way to do this without bf? I couldn't make heads or tails of > what you wrote above.
"bf" parsing is fragile because it is a space-delimited list of functions (meaning no functions may have whitespace in them). "bf" also adds the function to the query score, but for boosting one is normally better off multiplying. With edismax, you can get a multiplicative boost via boost=recip(ms(NOW/DAY,pd),3.16e-11,1,1) -Yonik http://www.lucenerevolution.org -- Lucene/Solr User Conference, May 25-26, San Francisco
