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Associating place name mentions in unstructured text with their actual references in geographic space is vital to enable spatial queries and analysis. In this paper, we introduce GeoTxt, a web API plus human-usable web tool designed and implemented to tackle three components of place-reference processing from text, namely: extraction, disambiguation, and geolocation of place names mentioned in unstructured text. Current GeoTxt development is focused particularly on support for processing short microblog posts.doi:10.1145/2533888.2533942 dblp:conf/gir/KarimzadehHBWHPMM13 fatcat:sxi2kxkzynfjlj4d7gz7hvhi2u