http://www.lucidimagination.com/blog/2009/08/05/getting-started-with-payloads/ sounds a good place to start.
A much simpler alternative, although without exact control, would be to use query boosting. There is also CustomScoreQuery - complex but powerful. -- Ian. On Fri, Oct 15, 2010 at 2:19 PM, Zaharije Pasalic <pasalic.zahar...@gmail.com> wrote: > Can anybody explain or point me to couple of links where i can find > more info about payloads? > > Thx > > On Fri, Oct 15, 2010 at 11:09 AM, Danil ŢORIN <torin...@gmail.com> wrote: >> You could encode term score as payload while indexing, and use those >> payloads on search time. >> >> On Fri, Oct 15, 2010 at 11:30, Zaharije Pasalic >> <pasalic.zahar...@gmail.com> wrote: >>> Hi >>> >>> my original problem is to index large number of documents which >>> contains 360 integers in rage from 0-90K. Searching it's a little bit >>> complicated - I need to find most similar documents where query data >>> is also 360 numbers in range 0-90K. But (there is always 'but') i need >>> to create score with some predefined weight table. Here is example: >>> >>> Index contains: >>> >>> DOC1 : 1, 3, 5 >>> DOC2 : 1, 100 >>> DOC3 : 1, 5 >>> >>> I need to find all documents which are 'like' this: >>> >>> SEARCH: 1,5,100 >>> >>> And suppose that i'm having table which says: "if value is larger than >>> 10 wight hit as 0.5, else as 1" (in real application this is more >>> complicated weight table). >>> >>> So for Query 1,5,100 i will have: >>> >>> DOC1: SCORE=2 [1,5] >>> DOC3: SCORE=2 [1,5] >>> DOC2: SCORE=1.5 [1,100 (100>10- wight 0.5] >>> >>> Searching is just: if hits occurs on field, increments score by >>> 1*weight(value) >>> >>> My first step was to create index with one field which contains all >>> 360 values and to remove normals from it. >>> >>> Now when i'm doing search like: >>> >>> "F:1 F:5 F:100" >>> >>> I'm getting results ok but score is not correct. Of course it gives me >>> score sorted by 'number of hits' (am I right?) but score value is not >>> calculated by increments of 1 nor i'm using wights at all. >>> >>> So, my question is - is this even possible with lucene and if can, can >>> you point me into some directions (i already looked a little bit at >>> DefaultSimilarity overriding). >>> >>> Thanks >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
