Edit search boost factors

You can edit search boost factors to increase or decrease its importance of resource types, fields and asset types, in the search ranking.

By default, all resources and attribute types have a boost factor of 1. Values greater than 1 increase the importance, whereas values less than 1 decrease the importance. All values must be greater than 0.

Note Search performance can be affected by the number of edited boost factors and the range of the values. For example, assigning a boost factor of 2 will likely result in better search performance than assigning a boost factor of 200. We recommend values no greater than 10. Remember that you can also use decimals, for example, 0.5 and 6.3.

Prerequisites

You have the ADMIN or SUPER role in Collibra Console.
You have a global role that has the Product Rights > System administration global permission.
The Services Configuration tab is available in the Collibra settings.

Steps

1. Open the Services Configuration tab:

   1. On the main toolbar, click → Settings.
      The Settings page opens.
   2. Click Services Configuration.
   3. Click Edit configuration.

   Open the DGC service settings for editing:

   1. Open Collibra Console.
      Collibra Console opens with the Infrastructure page.
   2. In the tab pane, expand an environment to show its services.
   3. In the tab pane, click the Collibra Platform service of that environment.
   4. Click Configuration.
   5. Click Edit configuration.
2. In the Search index configuration section, edit the search boost factors of the following resource types and fields.
   

   Setting	Description
   Asset	The search boost factor of assets.
   Class Match	The search boost factor of data classes that were accepted during Automatic Data Classification. Note This is applicable only to users that have the Catalog global permission.
   Community	The search boost factor of communities. Note This only affects the community asset itself, not the subcommunities, domains or assets in the community.
   Domain	The search boost factor of domains. Note This only affects the domain asset itself, not the assets in the domain.
   User	The search boost factor of users.
   User group	The search boost factor of user groups.
   Name	The search boost factor of the Name field.
   Comment	The search boost factor of the Comment field.
   Tag	The search boost factor of the Tag field.

3. Optionally, edit the boost factors of the existing additional attribute types in the list.
4. Optionally, add a boost factor of additional attribute types.
   1. Under Attribute boost map, click Add.
      The Add map option dialog box appears.
   2. Enter the required information.
      

      Setting	Description
      Field key	The resource ID of the attribute type. Tip You can find the resource ID of an attribute type in the Collibra settings.
      Field value	The search boost factor of the attribute type.

   3. Click Add map option.
5. Optionally, edit the boost factors of asset types.
   1. Under Asset boost map, click Add.
   2. Enter the required information.
      

      Setting	Description
      Field key	The resource ID of the asset type.
      Field value	The search boost factor of the asset type.

   3. Click Add map option.

   Note Asset type hierarchy is not considered when boosting. This means that editing the boost factor of a parent asset type does not change the boost factor of any child asset types. You have to individually edit the boost factor of each relevant asset type.

6. Optionally, enable or disable exact matching:

   True (default): If the name of an asset is exactly the same as the search text, it is placed at the top of the search results, regardless of boost factors.

   False: The regular search order is used, considering boost factors.

7. Optionally, enable or disable partial exact matching:

True (default): For multi-word search texts, the exact match percentage with the resource name is considered when ordering the results.


Example If a user enters the search text scheduled maintenance, the following assets are returned in the order listed:
1. An asset named daily scheduled maintenance, as two of the three words (66%) match exactly.
2. An asset named daily scheduled maintenance revised, as two of the four words (50%) match exactly.

False: The exact match percentage is ignored in the score calculation.

8. Click Save all.
9. Reindex Collibra Platform.