Culls concepts, such as names, geographic entities and relationships, from unstructured data (mostly text).
In computer science, information extraction (IE) is a type of information retrieval whose goal is to automatically extract structured information from unstructured machine-readable documents. An example of information extraction is the extraction of instances of corporate mergers, more formally MergerBetween(company_1, company_2, date), from an online news sentence such as: "Yesterday, New-York based Foo Inc. announced their acquisition of Bar Corp."