score_d = sum_t(tf_q * idf_t / norm_q * tf_d * idf_t / norm_d_t * boost_t) * coord_q_d
One last thing I wondered about: Is idf_t really going into that equation twice? >From what I see, idf_t/norm_q is completely left out, isn't it? tf_q is applied although it is never calculated - if a term occurs more twice in the query (very unlikely, though) the whole sum is calculated twice. And for each term, the equation tf_d * idf_t / norm_d_t * boost_d * boost_f * boost_t is calculated. Doug? --Clemens -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
