Peer reviewed
ERIC Number: EJ541428
Record Type: Journal
Publication Date: 1996
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: ISSN-0022-0418
EISSN: N/A
An Upperbound to the Performance of Ranked-Output Searching: Optimal Weighting of Query Terms Using A Genetic Algorithm.
Robertson, Alexander M.; Willett, Peter
Journal of Documentation, v52 n4 p405-20 Dec 1996
Describes a genetic algorithm (GA) that assigns weights to query terms in a ranked-output document retrieval system. Experiments showed the GA often found weights slightly superior to those produced by deterministic weighting (F4). Many times, however, the two methods gave the same results and sometimes the F4 results were superior, indicating that F4 weights are an excellent alternative. (PEN)
Descriptors: Algorithms, Comparative Analysis, Information Retrieval, Online Searching, Online Systems
Publication Type: Reports - Research; Journal Articles
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A