Now showing items 1-8 of 8

    • Automatic Indexing Using Term Discrimination and Term Precision Measurements 

      Salton, Gerard; Wong, A.; Yu, C. T. (Cornell University, 1975-07)
      A variety of abstract automatic indexing models have been developed in recent times in an effort to produce indexing methods that are both effective and usable in practice. Among these are thee term discrimination model ...
    • Contribution to the Theory of Indexing 

      Salton, Gerard; Yang, C. S.; Yu, C. T. (Cornell University, 1973-11)
      An attempt is made to characterize the usefulness of terms occurring in stored documents and user queries as a function of their frequency characteristics across the documents of a collection. It is found that the best ...
    • Effective Automatic Indexing Using Single Terms, Term Phrases and Thesaurus Class Assignments 

      Yu, C. T.; Salton, Gerard; Siu, M. K. (Cornell University, 1976-10)
      In a retrieval environment, indexing is the task which consists in the assignment to stored records and incoming information requests of content identifiers capable of representing record or query content. It is known ...
    • Effective Information Retrieval Using Term Accuracy 

      Salton, Gerard; Yu, C. T. (Cornell University, 1975-07)
      The performance of information retrieval systems can be evaluated in a number of different ways. Much of the published evaluation work is based on measuring the retrieval performance of an average user query. Unfortunately, ...
    • A Generalized Term Dependence Model in Information Retrieval 

      Yu, C. T.; Buckley, Chris; Lam, K.; Salton, Gerard (Cornell University, 1983-02)
      The tree dependence model has been used successfully to incorporate dependencies between certain term pairs on the information retrieval process, while the Bahadur Lazarsfeld Expansion (BLE) which specifies dependencies ...
    • Precision Weighting - An Effective Automatic Indexing Method 

      Yu, C. T.; Salton, Gerard (Cornell University, 1975-03)
      A great many automatic indexing methods have been implemented and evaluated over the last few years, and automatic procedures comparable in effectiveness to conventional manual ones are now easy to generate. Two drawbacks ...
    • Theory of Indexing and Classification 

      Yu, C. T. (Cornell University, 1973-08)
      Given a written text in natural language, it is convenient to represent the information content of the text by one or more entities, variously known as concepts, keywords, or terms. It is desired to choose "good" terms ...
    • A Theory of Term Importance in Automatic Text Analysis 

      Salton, Gerard; Yang, C. S.; Yu, C. T. (Cornell University, 1974-07)
      Most existing automatic content analysis and indexing techniques are based on word frequency characteristics applied largely in an ad hoc manner. Contradictory requirements arise in this connection, in that terms exhibiting ...