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| | Geographic Information Retrieval and Spatial Browsing (Site not responding. Last check: ) |
 | | Geographic Information Retrieval, as we define it here, is an applied research area that combines aspects of DBMS research, User Interface Research, GIS research, and Information Retrieval research, and is concerned with indexing, searching, retrieving and browsing of geo-referenced information sources, and the design of systems to accomplish these tasks effectively and efficiently. |
 | | Each geographic phrase, the probabilistic weight, and the coordinates derived in the preceding step can be represented as a three dimensional "extruded" polygon with its base in the plane of the x,z axes and which extends upward on the y axis a distance proportional to its weight (Figure 8a). |
 | | The geographic coordinates to assign to the text segment being indexed are determined by choosing a threshold of "elevation" z in the skyline, taking the x,z plane at z, and using the polygons at that "elevation". |
| sherlock.berkeley.edu /geo_ir/PART1.html (5601 words) |
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