On 7/14/06, Marvin Humphrey <[EMAIL PROTECTED]> wrote:
Yonik, I disagree on one point.  I recommend against omitting norms
for title fields.

Well, yes, I should have said "sometimes", when you don't need or want
length normalization.  The scenarios where you don't want/need length
normalization in full-text fields is typically with fields that are
restricted to being short (like title or name).  It's definitely
corpus dependent though.

KinoSearch adopted a default tf() truncation scheme where all fields
were normalized as if they contained a minimum of 100 tokens.

The kind of "title" fields I was thinking of were definitely less than
100 tokens, so it amounts to the same thing (but my advice should have
been clearer).

-Yonik
http://incubator.apache.org/solr Solr, the open-source Lucene search server

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