3. The method of claim 1 , further comprising classifying input pairs of data records as duplicate pairs based on attribute values of the input pairs and the final split-rules.
3. The method of claim 1 , further comprising classifying input pairs of data records as duplicate pairs based on attribute values of the input pairs and the final split-rules. 4. The method of claim 3 , wherein classifying a pair of data records as duplicate pairs comprises classifying two user accounts as duplicate user accounts based on the attribute values of the two user accounts and the final split-rules.