Table of contents
FOUNDATION OF EVALUATION
C.J. VAN RIJSBERGENThe mathematical theory of measurement is used to construct a framework for the evaluation of information retrieval strategies. The model arrived at is based on precision and…
THE ANOMALOUS BEHAVIOUR OF PRECISION IN THE SWETS MODEL, AND ITS RESOLUTION
ABRAHAM BOOKSTEINM. H. Heine has shown that if one follows the retrieval procedure associated with Swets' model of an information retrieval system it is possible that the inverse relationship…
THE DISTRIBUTION OF INDEXING DEPTH IN DOCUMENTATION SYSTEMS
P.R. BIRDMost documentation systems allocate a variable number of descriptors to their documents. From a consideration of indexing as a stochastic process it is suggested that the…
HOW MUCH ‘EXPLICIT RELATIONS’ DO RETRIEVAL SYSTEMS USE?
Cranfield II's findings on the unexpectedly low retrieval performance of thesauri (rank order 19 among 33 index languages) led Cleverdon to conclude that ‘there are situations…
AUTOMATIC INDEXING
KAREN SPARCK JONESThis article reviews the state of the art in automatic indexing, that is, automatic techniques for analysing and characterising documents, for manipulating their descriptions in…
ISSN:
0022-0418Online date, start – end:
1945Copyright Holder:
Emerald Publishing LimitedOpen Access:
hybridEditor:
- Prof David Bawden