I've been tasked with figuring out the best way to implement record linkage between multiple data sources. My suspicion is that supervised approaches will increase accuracy over unsupervised approaches as long as we are willing to do a clerical review to create a training data set that is large enough to be representative. Admittedly this would be very time consuming but I think it might be worthwhile in the long run. After reviewing many papers/blogs etc I can't seem to find many comparisons of current supervised vs unsupervised algorithms. Has anyone seen any work on this? Any links or guidance is appreciated. Or just general record linkage insight is appreciated also. Thanks!