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  • × author_ss:"Robertson, M."
  • × author_ss:"Willett, P."
  • × year_i:[1990 TO 2000}
  1. Robertson, M.; Willett, P.: ¬An upperbound to the performance of ranked output searching : optimal weighting of query terms using a genetic algorithms (1996) 0.00 
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    Abstract
    Describes the development of a genetic algorithm (GA) for the assignment of weights to query terms in a ranked output document retrieval system. The GA involves a fitness function that is based on full relevance information, and the rankings resulting from the use of these weights are compared with the Robertson-Sparck Jones F4 retrospective relevance weight
    Source
    Journal of documentation. 52(1996) no.4, S.405-420