</term>
between
<term>
terms
</term>
for separating
#30413This paper explores the issue of using different co-occurrence similarities between terms for separating query terms that are useful for retrieval from those that are harmful.
other,14-1-E99-1034,ak
between
<term>
terms
</term>
for separating
<term>
query terms
</term>
that are useful for
<term>
retrieval
#30419This paper explores the issue of using different co-occurrence similarities between terms for separating query terms that are useful for retrieval from those that are harmful.
other,19-2-E99-1034,ak
similar to each other than to other
<term>
query terms
</term>
. Preliminary experiments with
<term>
#30451The hypothesis under examination is that useful terms tend to be more similar to each other than to other query terms .
measure(ment),0-4-E99-1034,ak
</term>
seem to confirm the hypothesis .
<term>
Term similarities
</term>
could then be used for determining
#30470Preliminary experiments with similarities computed using first-order and second-order co-occurrence seem to confirm the hypothesis. Term similarities could then be used for determining which query terms are useful and best reflect the user's information need.
other,17-5-E99-1034,ak
tuning the
<term>
weights
</term>
of the
<term>
query terms
</term>
. We present an operable definition
#30509A possible application would be to use this source of evidence for tuning the weights of the query terms .