@conference {16859,
	title = {STEWARD: architecture of a spatio-textual search engine},
	booktitle = {Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems},
	series = {GIS {\textquoteright}07},
	year = {2007},
	month = {2007///},
	pages = {25:1{\textendash}25:8 - 25:1{\textendash}25:8},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {STEWARD ("Spatio-Textual Extraction on the Web Aiding Retrieval of Documents"), a system for extracting, querying, and visualizing textual references to geographic locations in unstructured text documents, is presented. Methods for retrieving and processing web documents, extracting and disambiguating georeferences, and identifying geographic focus are described. A brief overview of STEWARD{\textquoteright}s querying capabilities, as well as the design of an intuitive user interface, are provided. Finally, several application scenarios and future extensions to STEWARD are discussed.},
	keywords = {geocoding, spatio-textual search engine, STEWARD},
	isbn = {978-1-59593-914-2},
	doi = {10.1145/1341012.1341045},
	url = {http://doi.acm.org/10.1145/1341012.1341045},
	author = {Lieberman,Michael D. and Samet, Hanan and Sankaranarayanan,Jagan and Sperling,Jon}
}
@conference {16855,
	title = {STEWARD: demo of spatio-textual extraction on the web aiding the retrieval of documents},
	booktitle = {Proceedings of the 8th annual international conference on Digital government research: bridging disciplines \& domains},
	series = {dg.o {\textquoteright}07},
	year = {2007},
	month = {2007///},
	pages = {300 - 301},
	publisher = {Digital Government Society of North America},
	organization = {Digital Government Society of North America},
	abstract = {A spatio-textual search engine, termed "STEWARD" is demonstrated where document similarity is based on both the textual similarity as well as the spatial proximity of the locations in the document to the spatial search input. STEWARD{\textquoteright}s performance is enhanced by the presence of a document tagger that is able to identify textual references to geographical entities. The user-interface of STEWARD provides the ability to browse results, thereby making it a valuable "knowledge discovery" tool.},
	keywords = {geocoding, spatio-textual search engine, STEWARD},
	isbn = {1-59593-599-1},
	url = {http://dl.acm.org/citation.cfm?id=1248460.1248529},
	author = {Samet, Hanan and Lieberman,Michael D. and Sankaranarayanan,Jagan and Sperling,Jon}
}
