To read the full version of this content please select one of the options below:

DOCUMENT RETRIEVAL EXPERIMENTS USING INDEXING VOCABULARIES OF VARYING SIZE. I. VARIETY GENERATION SYMBOLS ASSIGNED TO THE FRONTS OF INDEX TERMS

JOHN E. BURNETT (Postgraduate School of Librarianship and Information Science, University of Sheffield)
DAVID COOPER (Postgraduate School of Librarianship and Information Science, University of Sheffield)
MICHAEL F. LYNCH (Postgraduate School of Librarianship and Information Science, University of Sheffield)
PETER WILLETT (Postgraduate School of Librarianship and Information Science, University of Sheffield)
MAUREEN WYCHERLEY (Postgraduate School of Librarianship and Information Science, University of Sheffield)

Journal of Documentation

ISSN: 0022-0418

Article publication date: 1 March 1979

42

Abstract

A study has been made of the effect of controlled variations in indexing vocabulary size on retrieval performance using the Cranfield 200 and 1400 test collections. The vocabularies considered are sets of variable‐length character strings chosen from the fronts of document and query terms so as to occur with approximate equifrequency. Sets containing between 120 and 720 members were tested both using an application of the Cluster Hypothesis and in a series of linear associative retrieval experiments. The effectiveness of the smaller sets is low but the larger ones exhibit retrieval characteristics comparable to those of words.

Citation

BURNETT, J.E., COOPER, D., LYNCH, M.F., WILLETT, P. and WYCHERLEY, M. (1979), "DOCUMENT RETRIEVAL EXPERIMENTS USING INDEXING VOCABULARIES OF VARYING SIZE. I. VARIETY GENERATION SYMBOLS ASSIGNED TO THE FRONTS OF INDEX TERMS", Journal of Documentation, Vol. 35 No. 3, pp. 197-206. https://doi.org/10.1108/eb026680

Publisher

:

MCB UP Ltd

Copyright © 1979, MCB UP Limited

Related articles