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    Configuring the Ranking of Search Results in Primo VE

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    The Ranking Configuration page enables you to configure various aspects of the ranking algorithm to affect the order of local records in the search results:

    • Fields Boosting – These settings enable you to provide more or less weight to records for which search terms are found in specific fields. Out-of-the-box, the system provides boosting factors for the following fields: title, creator, subject, TOC, ISBN, language, and additional title. For information on how these fields are mapped for searching, see Mapping to the Display, Facets, and Search Sections in the Primo VE Record.

    • Date Boosting – These settings enable you to provide more or less weight to titles that were created in a specific year or a range of years. This is useful if you want to give more current titles a boost.

    • Resource Type Boosting – These settings enable you to provide more or less weight to records of a specific type of resource (such as book).

    • Institution Boosting (consortia only) – These settings enable you to provide more or less weight to records from your institution.

    In comparison to Field boosts, all the other boosts have more influence and can significantly alter search results.

     

    • Too many ranking changes may adversely affect the out-of-the-box ranking mechanism. It is recommended that you make changes only for specific local needs.

    • Since no indexing is required after making a change, the changes are available immediately.

    To modify the ranking of search results:
    1. Open the Ranking Configuration page (Configuration Menu > Discovery > Search Configuration > Ranking Configuration).

      PVE_RankingConfiguration.png

      Ranking Configuration Page (Non-Consortia Environment)
    2. In the Fields Boosting section, either edit an existing field and change its boosting factor or select Add New Field to add a new field and its boosting factor.

      To specify a positive boost, enter a value from 1.0 to 1000000 (such as 2.3). To specify a negative boost, enter a value between 0.0 and 1.0 (such as 0.01).

      PVE_AddNewFieldsBoost.png

      Add New Field Boost Dialog Box
    3. In the Date Boosting section, either edit an existing field and change its boosting factor or select Add Date to add a new date (such as 1900) or date range (such as 1900-1925) and its boosting factor.

      To specify a positive boost, enter a value from 1.0 to 1000000 (such as 2.3). To specify a negative boost, enter a value between 0.0 and 1.0 (such as 0.01).

      PVE_AddNewDateBoost.png

      Add Date Boost Dialog Box

      You can add a maximum of five date/date range rows.

    4. In the Resource Type Boosting section, either edit an existing field and change its boosting factor or select Add Resource Type to add a new resource type and its boosting factor.

      To specify a positive boost, enter a value from 1.0 to 1000000 (such as 2.3). To specify a negative boost, enter a value between 0.0 and 1.0 (such as 0.01).

      PVE_AddNewResTypeBoost.png

      Add Resource Type Boost Dialog Box
    5. In the Institution Boosting section (consortia only), provide a boost to your institution's records in the search results.

      1. Activate and edit the Boost My Institution option to open the Edit Boosting Factor dialog box.

        PVE_InstBoost1.png

        Institution Boosting Section - Consortia Only
      2. In the Boosting Factor field, enter a value from 1.0 to 1000000 (such as 2.3) to provide a positive boost. To specify a negative boost, enter a decimal value between 0 and 1 (such as 0.01).

        PVE_EditBoostingFactor.png

        Edit Boosting Factor Dialog Box
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