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Sorting search results: Relevance

For the Relevance option, the system uses the following rules to rank the search results:

  • The four indexed fields Title, Author, Subject, and Note are ranked in order. Records that include a particular word or phrase from the search expression in the Title field will have a higher relevance than those in which the word or phrase appears in the Author field. Similarly, records that include the term(s) in the Author field will have a higher relevance than those in which the term(s) appear in the Subject field.
     
  • For searches on a single word, the system first applies the "field rule" described above. It then determines relevance based on one of the following three rules:
    • Most relevant -- The word is one of the first eight words indexed for the same record
    • Next most relevant -- The word is one of the first thirty-two words indexed for the same record
    • Last most relevant -- The word is indexed more than once in the same record
       
  • For searches including more than one word, the system first applies the "field rule" described above. It then determines relevance based on one of the following three rules:
    • Most relevant -- The first two words are very near one another in the index
    • Next most relevant -- The first two words are near one another in the index
    • Last most relevant -- The words are indexed more than once in the same record

(Source: Innovative Interfaces, Inc. Innopac User Manual. 2005. P. 101243.)

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