AT&T at TREC-7

  title={AT&T at TREC-7},
  author={Amit Singhal and John Choi and Donald Hindle and David D. Lewis and Fernando Pereira},
This year AT&T participated in the ad-hoc task and the Filtering, SDR, and VLC tracks. Most of our e ort for TREC-7 was concentrated on SDR and VLC tracks. On the ltering track, we tested a preliminary version of a text classi cation toolkit that we have been developing over the last year. In the ad-hoc task, we introduce a new tf-factor in our term weighting scheme and use a simpli ed retrieval algorithm. The same weighting scheme and algorithm are used in the SDR and the VLC tracks. The… CONTINUE READING
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