This article focuses on integrating computational and visual methods in a system that supports analysts to identify extract map and relate linguistic accounts of movement. We address two objectives: (1) build the conceptual theoretical and empirical framework needed to represent and interpret human-generated directions; and (2) design and implement a geovisual analytics workspace for direction document analysis. We have built a set of geo-enabled computational methods to identify documents containing movement statements and a visual analytics environment that uses natural language processing methods iteratively with geographic database support to extract interpret and map geographic movement references in context. Additionally analysts can provide feedback to improve computational results. To demonstrate the value of this integrative approach we have realized a proof-of-concept implementation focusing on identifying and processing documents that contain human-generated route directions. Using our visual analytic interface an analyst can explore the results provide feedback to improve those results pose queries against a database of route directions and interactively represent the route on a map.
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Jaiswal, Anuj; Pezanowski, Scott; Mitra, Prasenjit; Zhang, Xiao; Xu, Sen; Turton, Ian; Klippel, Alexander; and MacEachren, Alan M.
"GeoCAM: A geovisual analytics workspace to contextualize and interpret statements about movement,"
Journal of Spatial Information Science:
Available at: http://digitalcommons.library.umaine.edu/josis/vol2011/iss3/4