If you are up for _BLEEDING EDGE_ stuff, have a look at the Payload
addition to the trunk. With this, you can set payloads on individual
terms (i.e. the title tokens) and then use the BoostingTermQuery when
searching to factor in the payload in the scoring. This is very much
"buyer beware" at this point as it is not even officially released
yet. While it isn't overly complicated to use or anything, I just
wouldn't recommend it for production yet.
-Grant
On May 31, 2007, at 2:34 PM, wojtek hury wrote:
Is there a way of boosting only fragment of the field? Let's say
that I have
a title and short description of something which I want to index into
"myfield" field - is there a way of boosting title as more
important for
scoring than description? I thought that maybe something like below
would
work
Field f = new Field("myfield", title, Field.Store.NO,
Field.Index.TOKENIZED
);
f.setBoost(TITLE_BOOST);
doc.add(f);
f = new Field("myfield", description, Field.Store.NO,
Field.Index.TOKENIZED
);
f.setBoost(DECRIPTION_BOOST);
doc.add(f);
But I realized that it has effects that field "myfield" (all field)
has
boost TITLE_BOOST * DESCRIPTION_BOOST. Is there any work-around for
this?
Thank you in advance for any help.
wojtek hury
--------------------------
Grant Ingersoll
Center for Natural Language Processing
http://www.cnlp.org/tech/lucene.asp
Read the Lucene Java FAQ at http://wiki.apache.org/jakarta-lucene/
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