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http://worldcat.org/entity/work/id/1426875

Information retrieval systems: characteristics, testing and

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  • "The basis activities of information retrieval; Subject indexing, index terms, and controlled vocabularies; Search files and searching mechanisms; The current awareness function; Performance criteria for information retrieval systems; Factors affecting the performance of an information retrival system; Index language, their components and characteristics; Toward completely mechanized information systems; Evaluating the operating efficiency of an information retreival system; Analysis of the test data."
  • "The functions of information retrieval systems; The matching subsystem; The application of computers to information retrieval: off-line batch processing systems; On-line information retrieval; The growth of machine-readable data bases; Microforms and microform retrieval systems; Information centers and information services; Criteria by which information services may be evaluated; Evaluating the effectiveness of information services; Latent needs and expressed needs; Selecting a data base and searching; Vocabulary control; The indexing subsystem; Improving the performance of an information service on the basis of evaluation results; The evaluation of machine-readable data bases and information services derived from them; Cost-effectiveness and cost-benefitevaluation; Evaluation of a national information system; Pertinence and relevance; A brief history of evaluation; Natural language in infomration retrieval; Automatic systems; The role of informal communication; Users and user needs; The design of infomration services; The future: paperless information systems."

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  • "Information retrieval systems"
  • "Information retrieval systems: characteristics, testing and"@en
  • "Information retrieval systems : characteristics, testing an evaluation"
  • "Information retrieval systems Characteristics, testing and evaluation"
  • "Information retrieval systems : Characteristics, testing and evaluation"
  • "Information retrieval systems : characteristics, testing, and evaluation"
  • "Information retrieval systems; characteristics, testing, and evaluation"
  • "Information retrieval systems : Characteristics, testing, and evaluation"
  • "Information retrieval systems : characteristics, testing and evaluation"@en
  • "Information retrieval systems : characteristics, testing and evaluation"
  • "Information retrieval systems: characteristics, testing and evaluation"
  • "Information retrieval systems : characteristics, testing and evaluation. F. Wilfrid [sic pour Wilfred] Lancaster"
  • "Information retrieval systems characteristics, testing and evaluation"
  • "Information retrieval systems characteristics, testing, and evaluation"@en

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