public float getCompleteness() {
        float fieldCompletenessImportance = source.getParameters().getFieldCompletenessImportance();
        return getQueryCompleteness() * ( 1 - fieldCompletenessImportance) + fieldCompletenessImportance*getFieldCompleteness();
    }
Total completeness, where field completeness is more important:
<code>queryCompleteness * ( 1 - fieldCompletenessImportance) + fieldCompletenessImportance * fieldCompleteness</code>
searchlib/src/main/java/com/yahoo/searchlib/ranking/features/fieldmatch/FieldMatchMetrics.java