On Oct 30, 2008, at 7:28 PM, Anshul jain wrote:
I want to give more weight to some terms in the document. Like title
of the
book should be given more weight than the contents. And we are
testing over
a wide varieties of lucene queries, with quotes, w/o quotes, phrase,
span
etc.
If the whole title is important, just boost the Title field.
As our system will be expecting more number of queries that contain
nouns
and documents in which that term in heading or title or in bold
should be
given higher score.
But this payload thing is not supporting us fully. As it is only
working for
single term queries or boolean term queries. It would also be good
if it
supports phrase queries also, as using closeness of terms for
scoring is
quite important for us.
Do you've any suggestions?
Could you get by using just field boosts?
As for phrase payload queries, I agree they would be nice to have.
Only way they are getting in is if someone donates a patch. I can
review it if you can produce it, but don't have time at the moment to
produce it.
-Grant
On Thu, Oct 30, 2008 at 7:08 PM, Grant Ingersoll
<[EMAIL PROTECTED]>wrote:
Not directly, I don't think. Mark Miller contributed some
highlighting
code that converts phrase queries to SpanNearQueries, I believe,
but this
isn't general purpose. We probably need a QueryParser that
produces
SpanQueries instead of regular Queries, I suppose, but they aren't
always
1-1. Ideally, there would be no perf. penalty for SpanQueries and
everything would be a span query, but until someone figures out
that magic,
I don't know.
What is it that you are trying to do?
-Grant
On Oct 30, 2008, at 12:42 PM, Anshul jain wrote:
Thanks Grant the presentation, it was very useful.
Can payload work for queries other than Term queries and Span
queries? Or
is
there any function to convert Query into span query?
Thanks
On Thu, Oct 23, 2008 at 4:08 PM, Grant Ingersoll
<[EMAIL PROTECTED]
wrote:
You can search the archives for some background info. Also, Michael
Busch
has a nice presentation from ApacheCon at
http://people.apache.org/~buschmi/apachecon/AdvancedIndexingLuceneAtlanta07.ppt
<http://people.apache.org/%7Ebuschmi/apachecon/AdvancedIndexingLuceneAtlanta07.ppt
>
<
http://people.apache.org/%7Ebuschmi/apachecon/AdvancedIndexingLuceneAtlanta07.ppt
Basically, the payload allows you to associate an arbitrary byte
array
with
1 or more terms.
On Oct 23, 2008, at 9:07 AM, Anshul jain wrote:
Hi all,
Has anyone used the payload functionality in Lucene? I would
really
appreciate if someone can provide an explain using a code or
something.
Thanks,
Anshul
--------------------------
Grant Ingersoll
Lucene Boot Camp Training Nov. 3-4, 2008, ApacheCon US New Orleans.
http://www.lucenebootcamp.com
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
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Anshul Jain
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Grant Ingersoll
Lucene Boot Camp Training Nov. 3-4, 2008, ApacheCon US New Orleans.
http://www.lucenebootcamp.com
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
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Anshul Jain
--------------------------
Grant Ingersoll
Lucene Boot Camp Training Nov. 3-4, 2008, ApacheCon US New Orleans.
http://www.lucenebootcamp.com
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
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