Duality in information retrieval and the hypergeometric distribution
Leo Egghe
(LUC, Universitaire Campus, B‐3590 Diepenbeek, Belgium and UIA, Universiteitsplein, 1, 2610, Wilrijk, Belgium)
Ronald Rousseau
(KHBO, Zeedijk 101, B‐8400 Oostende, Belgium and UIA, Universiteitsplein, 1, 2610, Wilrijk, Belgium)
403
Abstract
Duality is an important topic in informetrics, especially in connection with the classical informetric laws. Yet this concept is less studied in information retrieval. It deals with the unification or symmetry between queries and documents, search formulation versus indexing, and relevant versus retrieved documents. These ideas are elaborated in this note and the connection with the hypergeometric distribution is highlighted.
Keywords
Citation
Egghe, L. and Rousseau, R. (1997), "Duality in information retrieval and the hypergeometric distribution", Journal of Documentation, Vol. 53 No. 5, pp. 488-496. https://doi.org/10.1108/EUM0000000007208
Publisher
:MCB UP Ltd
Copyright © 1997, MCB UP Limited