Probabilistic Models for Document Retrieval: A Comparison of Performance on Experimental and Synthetic Databases.

Robert M. Losee, Abraham Bookstein, Clement T. Yu: Probabilistic Models for Document Retrieval: A Comparison of Performance on Experimental and Synthetic Databases. SIGIR 1986: 258-264

@inproceedings{DBLP:conf/sigir/LoseeBY86,
  author    = {Robert M. Losee and
               Abraham Bookstein and
               Clement T. Yu},
  title     = {Probabilistic Models for Document Retrieval: A Comparison of
               Performance on Experimental and Synthetic Databases},
  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     = {258-264},
  ee        = {db/conf/sigir/LoseeBY86.html},
  crossref  = {DBLP:conf/sigir/86},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

BibTeX

Abstract

Probabilistic document retrieval systems consistent with the two Poisson independence model outperforms the binary independence model if the terms are distributed as described by the model's assumptions. The Two Poisson Effectiveness Hypothesis suggests that retrieval models based upon the two Poisson model will outperform binary independent models when used on a "real-world" database, where independence and two Poisson term occurrence distributions fail to hold, because the added information obtained from incorporating term frequency information will more than compensate for the non-Poisson distributions of terms. Searches of the MED1033 database suggest that if terms are not independent and frequencies of term occurrence are not distributed in a two Poisson manner, the binary independence sequential retrieval model outperforms the two Poisson independence retrieval model.

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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BibTeX

Printed Edition

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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Referenced by

Clement T. Yu, Weiyi Meng, S. Park: A Framework for Effective Retrieval. ACM Trans. Database Syst. 14(2): 147-167(1989)

BibTeX

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