2457 search results - page 277 / 492 » Evaluating Geographic Information Retrieval |
173
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PODS
1999
ACM
15 years 11 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
197
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SIGMOD
1999
ACM
15 years 11 months ago
1999
ACM
Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geogra...
185
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ISD
1999
Springer
15 years 11 months ago
1999
Springer
One of the primary methods of studying change in the natural and man-made environment is that of comparison of multi-date maps and images of the earth's surface. Such comparis...
168
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DEXA
2006
Springer
15 years 8 months ago
2006
Springer
Geographic information systems (GIS) must support large georeferenced data sets. Due to the size of these data sets finding exact answers to spatial queries can be very time consum...
168
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IPM
2008
15 years 6 months ago
2008
Categorized overviews of web search results are a promising way to support user exploration, understanding, and discovery. These search interfaces combine a metadata-based overvie...