Geographic Information Retrieval against Immediate Surroundings


2. OVERVIEW OF GIR SYSTEM 2.1 Pre-process The GIR system requires a text index and a geographic index. As the text index, those created for existing full-text search can be used. The geographic index is made by using NE recognizer, which locates place name expressions in texts as geo-references and geo-coder, which assigns coordinates to each geo-reference. The geographic index of our method also includes the extent of each geo-reference, which is extracted from a location name dictionary.

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@inproceedings{Toda2008GeographicIR, title={Geographic Information Retrieval against Immediate Surroundings}, author={Hiroyuki Toda and Norihito Yasuda and Yumiko Matsuura and Ryoji Kataoka}, year={2008} }