: > I've started trying edismax, and have noticed that my relevancy ranking is : > messed up with edismax because, according to the debug output, it's using : > bigrams instead of phrases and inexplicably ignoring a couple of the pf
I noticed that aw well while testing edismax on the train the other day (notes attached to SOLR-1553 earlier today) : It's a feature in general - the problem with putting all the terms in : a single phrase query is that you get no boosting at all if all of the : terms don't appear. But sometimes that's what you want -- pf was intended to support hte usecase where people remember an exact phrase from the text (ie: they cut/paste the title, or the first line from an abstract, etc...) and want that right at the top. removing that and replacing it with a shingles based approach allows other docs that match lots of "bits" of the iput string to overshadow exact matches. -Hoss
