Geoparsing

Geoparsing is the process of converting free-text descriptions of places (such as "twenty miles northeast of Jalalabad") into unambiguous geographic identifiers, such as geographic coordinates expressed as latitude-longitude. One can also geoparse location references from other forms of media, for example audio content in which a speaker mentions a place. With geographic coordinates the features can be mapped and entered into Geographic Information Systems. Two primary uses of the geographic coordinates derived from unstructured content are to plot portions of the content on maps and to search the content using a map as a filter.