Sorry that I didn't make myself clear. [10/5/2] means for terms found in the 1st paragraph, give it score*10, for terms in the 2nd, give it score*5, etc.
So I don't know how to do this scoring if the position (paragraph) information is in a separate field. Cedric On Fri, Feb 15, 2008 at 7:15 AM, Paul Elschot <[EMAIL PROTECTED]> wrote: > I have no idea what the [10/5/2] means, so I can't comment on that. > In case I have missed it previously I'm sorry. > > My point was that payloads need not be used for different position info. > It's possible to do that, and it may be good for performance in some cases, > but one can revert to using another field for different position info. > > Regards, > Paul Elschot > > > Op Thursday 14 February 2008 09:44:40 schreef Cedric Ho: > > > > Hi Paul, > > > > Sorry I am not sure I understand your solution. > > > > Because I would need to apply this scoring logic to all the different > > types of Queries. A search may consists of something like: > > > > +(term1 phrase2 wildcard*) +spanNear(term3 term4) [10/5/2] > > > > And this [10/5/2] ratio have to be applied to the whole search query > > before it. So I am not sure how would using just SpanFirstQuery with a > > separate field work in this situation. > > > > Anyway, I know my requirement is a bit strange, so it's ok if I can't > > do this in Lucene. I'll settle with using a ThreadLocal to store the > > [10/5/2] weighting and retrieve it in the Similarity.scorePayload(...) > > function. > > > > > > BTW, this problem I am facing now is different from the last one I > > asked here, which you have proposed with the Modified SpanFirstQuery > > solution =) > > > > But I am really grateful with all the helps I get here. Keep up the good > work! > > > > Cheers, > > Cedric > > > > > > On Thu, Feb 14, 2008 at 2:58 PM, Paul Elschot <[EMAIL PROTECTED]> wrote: > > > Op Thursday 14 February 2008 02:11:24 schreef Cedric Ho: > > > > > > > I am using Lucene's Built-in query classes: TernQuery, PhraseQuery, > > > > WildcardQuery, BooleanQuery and many of the SpanQueries. > > > > > > > > The info I am going to pass in is just some weightings for different > > > > part of the indexed contents. For example if the payload indicate that > > > > a term is in the 2nd paragraph, then I'll take the weighting for the > > > > 2nd paragraph and multiply it by the score. > > > > > > > > So it seems without writing my own query there's no way to do it ? > > > > > > In case it is only positional information that is stored in the payload > > > (i.e. some integer number that does not decrease when tokenizing the > > > document), it is also possible to use an extra field and make sure the > > > position increment for that field is only positive when the number > > > (currently your payload) increases. > > > A SpanFirstQuery on this extra field would almost do, and you will > > > probably need https://issues.apache.org/jira/browse/LUCENE-1093 . > > > This will be somewhat slower than using a payload, because the search > > > will be done in two separate fields, but it will work. > > > > > > Regards, > > > Paul Elschot > > > > > > > > > > > > --------------------------------------------------------------------- > > > 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] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
