Entity Resolution, or wiki/Record linkage is the process of (joining|matching) records from one data source with another that describe the same Entity.
Also known as :
Entity Resolution (ER) refers to the task of finding records in a data set that refer to the same entity across different data sources. (identifier)
A data set that has undergone ER may be referred to as being cross-linked.
Entity resolution is a data cleaning and integration problem..