We spend a lot of time fixing duplicate business listings due of the variety of issues they cause. Why is it then that they are always coming back? It is explained by big local search publishers aggregating business listings data from a large variety of sources, the process of Conflation and The View, and lots of guessing that goes into data sources. Understand the process of duplicate records attacking by reading Andrew Shotland’s article at http://searchengineland.com/duplicate-business-listings-like-walking-dead-183687
