Abstract: Systems and methods for linking HCPs from an MDM system and publication authors from a second source data system. Distances between the HCPs and the publication authors may be determined, and an HCP and a publication author may be connected if their distance is below a threshold. The connected data points may be used to train a machine learning model to determine a probability that an HCP matches a publication author. An upper bound and a lower bound may be set. Data points with the probability over the upper bound may be sent out as matches, data points below the lower bound may be disregarded as not a match, and data points between the upper bound and lower bound may be labeled for manual verification.