Literaturnachweis - Detailanzeige
Autor/inn/en | Robertson, Alexander M.; Willett, Peter |
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Titel | An Upperbound to the Performance of Ranked-Output Searching: Optimal Weighting of Query Terms Using A Genetic Algorithm. |
Quelle | In: Journal of Documentation, 52 (1996) 4, S.405-20 |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 0022-0418 |
Schlagwörter | Algorithms; Comparative Analysis; Information Retrieval; Online Searching; Online Systems |
Abstract | 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) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |