1. One or more processor-readable program media having processor-executable instructions that, when executed by a processor, perform acts comprising: obtaining a dataset comprising multiple tuples from a database; for each of the multiple tuples of the dataset, computing one or more nearest neighbor tuples in the dataset; defining multiple disjoint partitions of multiple tuples, wherein tuples in each partition comprise fuzzy duplicates of one another, such that each fuzzy duplicate tuple in a partition represents a common real world entity or phenomenon.