Hi Marc, Can you clarify what the semantics of a DisjunctionMinQuery would be? Would you keep the score for the *lowest* scoring disjunct (plus some tiebreaker applied to the other matching disjuncts)?
I'm trying to imagine how that would work compared to the classic DisMax use-case. Say I'm searching for "dalmatian" using a DisMax query over term queries against title and body. A match on title is probably going to score higher than a match against the body, just because the title has a shorter length (and the doc frequency of individual terms in the title is likely to be lower, since there are fewer terms overall). With DisMax, a match on title alone will score higher than a match on body, and the tie-break will tend to score a match on title and body higher than a match on title alone. With a DisMin (assuming you keep the lowest score), then a match on title and body would probably score lower than a match on title alone. That feels weird to me, but I might be missing the use-case. How would you use a DisMinQuery? Thanks, Froh On Wed, Nov 8, 2023 at 10:50 AM Marc D'Mello <marcd2...@gmail.com> wrote: > Hi all, > > I noticed we have a DisjunctionMaxQuery > < > https://github.com/apache/lucene/blob/branch_9_7/lucene/core/src/java/org/apache/lucene/search/DisjunctionMaxQuery.java > > > but > not a corresponding DisjunctionMinQuery. I was just wondering if there was > a specific reason for that? Or is it just that it is not a common query to > use? > > Thanks! > Marc >
