Reexamining tf.idf based information retrieval with genetic programming

Authors:
Nir Oren
Affiliations:
University of the Witwatersrand
Venue:
SAICSIT '02 Proceedings of the 2002 annual research conference of the South African institute of computer scientists and information technologists on Enablement through technology
Year:
2002

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Abstract

The tf.idf family of vector based information retrieval schemes is very popular due to its simplicity and robustness, as well as its tractability to enhancements. This paper proposes a method to automatically perform a search for new tf.idf like schemes using genetic programming. The results of this automated search are then evaluated in a simple usage scenario. Also evaluated are the effects of using different fitness functions in the genetic programming phase.