Coefficients for Combining Concept Classes in a Collection.

Edward A. Fox, Gary L. Nunn, Whay C. Lee: Coefficients for Combining Concept Classes in a Collection. SIGIR 1988: 291-307

@inproceedings{DBLP:conf/sigir/FoxNL88,
  author    = {Edward A. Fox and
               Gary L. Nunn and
               Whay C. Lee},
  editor    = {Yves Chiaramella},
  title     = {Coefficients for Combining Concept Classes in a Collection},
  booktitle = {SIGIR'88, Proceedings of the 11th Annual International ACM SIGIR
               Conference on Research and Development in Information Retrieval,
               Grenoble, France, June 13-15, 1988},
  publisher = {ACM},
  year      = {1988},
  pages     = {291-307},
  ee        = {db/conf/sigir/FoxNL88.html},
  crossref  = {DBLP:conf/sigir/88},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

This report considers combining information to improve retrieval. The vector space model has been extended so different classes of data are associated with distinct concept types and their respective subvectors. Two collections with multiple concept types are described, ISI-1460 and CACM-3204. Experiments indicate that regression methods can help predict relevance, given query-document similarity values for each concept type. After sampling and transformation of data, the coefficient of determination for the best model was .48 (.66) for ISI (CACM). Average precision for the two collections was 11% (31%) better for probabilistic feedback with all types versus with terms only. These findings may be of particular interest to designers of document retrieval or hypertext systems since the role of links is shown to be especially beneficial.

Copyright © 1988 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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Yves Chiaramella (Ed.): SIGIR'88, Proceedings of the 11th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Grenoble, France, June 13-15, 1988. ACM 1988
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