An information-theoretic approach to automatic query expansion

@article{Carpineto2001AnIA,
  title={An information-theoretic approach to automatic query expansion},
  author={Claudio Carpineto and Renato De Mori and Giovanni Romano and Brigitte Bigi},
  journal={ACM Trans. Inf. Syst.},
  year={2001},
  volume={19},
  pages={1-27}
}
Techniques for automatic query expansion from top retrieved documents have shown promise for improving retrieval effectiveness on large collections; however, they often rely on an empirical ground, and there is a shortage of cross-system comparisons. Using ideas from Information Theory, we present a computationally simple and theoretically justified method for assigning scores to candidate expansion terms. Such scores are used to select and weight expansion terms within Rocchio's framework for… CONTINUE READING
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ANU / ACSys TREC - 6 Experiments

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  • Proceedings of the 6 th Conference on Text…
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