IM InfoSphere Identity Insight, Version 8.0

Resolution scores

The resolution score is the value that is assigned during entity resolution as a result of the confirmation and denial processing and that defines the likelihood that the compared identities represent the same entity. This score is user-defined and is used to resolve a new identity to an existing entity.

As the pipeline processes incoming identities for entity resolution, it compares the shared attribute values for the attributes of the incoming identity and of each entity on the candidate list. Part of the comparison includes computing scores that represent how closely the attribute values match. These scores are then compared against the configured thresholds and resolution score for each resolution rule. After the entity resolution process uses a confirmation and denial process to prevent false positives, the system creates a baseline resolution score for both the incoming identity and the entity on the candidate list.

If one or more attributes is configured to be used for further confirmation denial, the process then evaluates those attributes. The results affect the baseline resolution scores of the incoming identity and the candidate entity. If the attribute values match, the resolution score can be positively affected by adding the configured number of points. If the attribute values do not match, the relationship score can be negatively affected by subtracting the configured number of points. When you configure an attribute to be used for confirmation or denial, you specify the number of points up or down to adjust the baseline resolution score.

The system then compares the resulting resolution score of the incoming identity and the candidate entity to each resolution rule. If the resolution score meets or exceeds the configured resolution confidence score for the resolution rule, the system resolves the incoming identity into the candidate entity, creating one composite entity in the entity database.



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Last updated: 2011