Thanks so much, that works. Jin
On Tue, Aug 19, 2014 at 4:13 PM, Uwe Schindler <u...@thetaphi.de> wrote: > Hi, > Look at his docs. He has only 2 docs, the second one 3 keywords. > > I would use a simple phrase query with a slop value < Analyzers > positionIncrementGap. This is the gap between fields with same name. Span > or phrase cannot cross the gap, if slop if small enough, but large enough > to find the terms next to each other. > > SpanQuery is not needed. Phrase does all thats needed. Slop is like edit > distance of whole terms, order does not matter. > > Uwe > > Am 19. August 2014 22:05:23 MESZ, schrieb Tri Cao <tm...@me.com>: > >OR operator does that, AND only returns docs with ALL terms present. > > > >Note that you have two options here > >1. Create a BooleanQuery object (see the Java doc I linked below) and > >programatically > >add the term queries with the following constraint: > > > http://lucene.apache.org/core/4_6_0/core/org/apache/lucene/search/BooleanClause.Occur.html#MUST_NOT > > > >2. Use Lucene classic QueryParser and pass in the query string "states > >AND america AND united" > > > >I would suggest 1) if you are going to learn more about Lucene, and 2) > >if you are just want to get some thing out. > > > >Hope this helps, > >Tri > > > >On Aug 19, 2014, at 12:17 PM, Jin Guang Zheng <zhen...@rpi.edu> wrote: > > > >Thanks for reply, but won't BooleanQuery return both doc1 and doc2 with > >query: > > > >label:States AND label:America AND label:United > > > >Best, > >Jin > > > > > >On Tue, Aug 19, 2014 at 2:07 PM, Tri Cao <tm...@me.com > wrote: > > > > > given that example, the easy way is a boolean AND query of all > >the terms: > > > > > > > > > > > > http://lucene.apache.org/core/4_6_0/core/org/apache/lucene/search/BooleanQuery.html > > > > > > However, if your corpus is more sophisticated you'll find that > >relevance > > > ranking is not always that trivial :) > > > > > > On Aug 19, 2014, at 11:00 AM, Jin Guang Zheng <zhen...@rpi.edu > > > wrote: > > > > > > Hi, > > > > > > I am wondering if someone can help me on this: > > > > > > I have index: > > > > > > doc 1 -- label: United States of America > > > > > > doc 2 -- label: United > > > doc 2 -- label: America > > > doc 2 -- label: States > > > > > > I am wondering how to generate a query with terms: states > >united america > > > > > > so only doc 1 returns. > > > > > > > > > I was thinking SpanNearQuery, but can't make it work. > > > > > > Thanks, > > > Jin > > > > > > > > -- > Uwe Schindler > H.-H.-Meier-Allee 63, 28213 Bremen > http://www.thetaphi.de
