filter.xml

You can further configure the survivor calculator, blocking query, and match process by defining exclusion lists in filter.xml. Exclusion lists allow you to define values that should not be populated into the SBR, that should not be considered in the composite matching weight, and that should be ignored in the blocking query. Values you would want to filter out primarily include default values that are used when the actual value for a field is unknown. Default values can cause the blocking query to return records that are not a close match and can skew matching results.