> On Tuesday 23 March 2004 16:05, Joachim Schreiber wrote: > > Hallo, > > > > I run in following problem. Perhaps somebody can help me. > > > > I have a index with different ids in the same field > > something like > > > > <s>00000000 > > <s>45678565 > > <s>87854546 > > > > Situation: I have different documents with the entry <s>00000000 in the > > same index. > > > > > > document 1) > > > > <s>324235678565 > > <s>324dssd5678565 > > <s>45678324565 > > <s>00000000 > > <s>8785454324326 > > > > > > document 2) > > > > <s>324235678565 > > <s>00000000 > > <s>45678324565 > > <s>8785454324326 > > > > > > > > when I search for " s:00000000 " I receive both docs, but document 1 has > > a better scoring than document 2. > > Since the s field of document 2 is shorter, I'd expect document 2 to score > higher. As mentioned, lengthNorm() is responsible for this. > Something does not add up here. Are the documents in the same index? > > > The position of <s>00000000 in doc 1 is Field[4] and in doc 2 it's > > Field[2], so this seems to effect scoring. > > Lucene's default scoring is independent of absolute term positions. >
hm... > > How can I disable this behaviour, so doc 1 has the same scoring as doc 2??? > > Simply ignore the score. The easiest way is to use the low level scoring API > with your own HitCollector. Just make sure not to retrieve document field > values until you collected all your hits. you think its possible to order by e.g. date field without retrieving all the values from the index?? > > > Which method do I have to overwrite in DefaultSimilarity. > > Has anybody any idea, any help. > > In which order to you want the resulting documents presented? > The low level api gives them in index order when the query consists > of single search term, afaik. in index order is ok but not very flexibel Regards, yo > > Regards, > Ype > > > --------------------------------------------------------------------- > 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]
