In order to improve the integrating of datasets, improved systems and methods for matching records from a first dataset and a second dataset are provided. Records from the first dataset and the second dataset that are associated with the same individuals are identified. The records are identified using a combination of Euclidean distance, Leviathan distance, and the application of one or more rules. Once the records that are associated with the same individuals are identified, the records can be combined in an integrated dataset.