DIALOG: An operational on-line reference retrieval system

  • Authors:
  • Roger K. Summit

  • Affiliations:
  • -

  • Venue:
  • ACM '67 Proceedings of the 1967 22nd national conference
  • Year:
  • 1967

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Abstract

Classification systems in the sciences usually provide an unambiguous structure of mutually exclusive, collectively exhaustive categories. The same formal structuralization, when strictly applied to the classification of technical literature for retrieval purposes, has proved inadequate. At another extreme, approaches to indexing which preclude any hierarchical association are similarly disappointing.