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RECOGNIZING REFERENCES TO PHYSICAL PLACES INSIDE SHORT TEXTS BY USING PATTERNS AS A SEQUENCE OF GRAMMATICAL CATEGORIES
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Collecting data by crowdsourcing is an explored trend to support database population and update. This kind of data is unstructured and comes from text, in particular text in social networks. Geographic database is a particular case of database that can be populated by crowdsourcing which can be done when people report some urban event in a social network by writing a short message. An event can describe an accident or a non-functioning device in the urban area. The authorities then need to readdoi:10.5194/isprs-archives-xlii-4-w3-83-2017 fatcat:e2n4kjl64bcczbldrhzaeeiwri