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    Repository Search - How are Results Sorted (Ranked)?

    • Article Type: Q&A
    • Product: Alma

    Question

    When doing any repository search the results are seemingly randomly ordered. For example, an author search doesn't display the results alphabetically. The same is true for a title search, Call Number, etc.

    Answer

    The Alma repository search is based on the Apache Lucene(TM) search mechanism (http://lucene.apache.org/core/)

    Looking at a title search as example:

    * A Repository search checks first the 245 (title) field before any other
    * It prefers an exact match
    * The search calculates the weight, or percentage, of the searched words within the title

    For example a search on “history” will retrieve these records, and order them thus:

    * The study of history
    * History and the study of chemistry

    Category: Repository search


    • Article last edited: 10/8/2013