ACM SIGMOD Anthology SIGIR dblp.uni-trier.de

Two Models of Retrieval with Probabilistic Indexing.

Norbert Fuhr: Two Models of Retrieval with Probabilistic Indexing. SIGIR 1986: 249-257
@inproceedings{DBLP:conf/sigir/Fuhr86,
  author    = {Norbert Fuhr},
  title     = {Two Models of Retrieval with Probabilistic Indexing},
  booktitle = {SIGIR'86, Proceedings of the 9th Annual International ACM SIGIR
               Conference on Research and Development in Information Retrieval,
                Pisa, Italy, September 8-10, 1986},
  publisher = {ACM},
  year      = {1986},
  pages     = {249-257},
  ee        = {db/conf/sigir/Fuhr86.html},
  crossref  = {DBLP:conf/sigir/86},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

We describe two retrieval models for probabilistic indexing. The binary independence indexing (BII) model is a generalized version of the Maron Kuhns indexing model. In this model, the indexing weight of a descriptor in a document is an estimate of the probability of relevance of this document with respect to queries using this descriptor. The retrieval-with-probabilistic-indexing (RPI) model is suited to different kinds of probabilistic indexing. Therefore we assume that each indexing model has its own concept of 'correctness' to which the probabilities relate. The concept of correctness is not necessarily identical with the concept of relevance, it is only required to depend on relevance. In addition to the probabilistic indexing weights, the RPI model provides the possibility of relevance weighting of search terms. Both retrieval models are compared in experiments, showing equally good results.

Copyright © 1986 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.


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SIGIR'86, Proceedings of the 9th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Pisa, Italy, September 8-10, 1986. ACM 1986
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