Le Mardi 03 Octobre 2006 12:14, Renzo Scheffer a écrit : > I try to get back a list of all left or right neighbours of a searchterm. > Then I will count them to get back the Information, how often a specific > word is used as neighbour of the searchterm. I know that the results are > variable according to the used Analyzer/Filter. It's just an experiment and > first I'll try to find out if it is possible to do something like that with > Lucene.
So you are trying to do some analysis about the documents stored in your index. I would say that Lucene isn't designed to do it at all. Lucene is done for searching. BTW, as Doron show us, there is maybe a way to acheive this. See also the "similarity" contribution of Lucene. Nicolas > > Renzo > > -----Ursprüngliche Nachricht----- > Von: Nicolas Lalevée [mailto:[EMAIL PROTECTED] > Gesendet: Dienstag, 3. Oktober 2006 00:04 > An: java-user@lucene.apache.org > Betreff: Re: get terms by positions > > Le Lundi 02 Octobre 2006 23:06, Renzo Scheffer a écrit : > > Hi, > > > > > > > > can anybody be so kind to tell me if it is possible to search a Term by > > its > > > position? > > > > > > > > I search a term (for excample "soccer") and get back the DocId's and > > positions as follows: > > > > > > > > > > > > TermPositions termPos = reader.termPositions(new > > Term("contents","soccer")); > > > > while(termPos.next()){ > > > > int freq = termPos.freq(); > > > > for(int i=0; i<freq; i++){ > > > > > > > > int docNumber = termPos.doc(); > > > > int position = termPos.nextPosition(); > > > > System.out.println("DocId: "+docNumber+"; Pos:"+position); > > > > } > > > > > > > > > > > > > > > > Output: > > > > > > > > DocId: 0; Pos: 1 > > > > DocId: 0; Pos: 4 > > > > DocId: 0; Pos: 7 > > > > DocId: 1; Pos: 3 > > > > DocId: 1; Pos: 7 > > > > > > > > Now I try to get back terms, one position before/after "soccer". I > > considered to take the > > > > Position and increase or decrease it. But I can't find a way to get back > > a term, according to the given Position. > > > > Can anybody help me? > > I think this is a non-sense to try to find a term. In Lucene, you search > with > a term, you are not trying to get some. Basically, in Lucene, you have a > list > of term pointing on documents, not the reverse. > > Maybe if you explain why you are trying to do that, we can find a better > way > > to do it. > > Nicolas > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
