980 search results - page 84 / 196 » GIS |
128
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GIS
1992
ACM
15 years 9 months ago
1992
ACM
Theoretical and empirical work on the geometry of environmental knowledge is discussed. Certain patterns of distanc.e and directional estimates collected from humans have been inte...
153
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COSIT
2007
Springer
15 years 9 months ago
2007
Springer
Abstract. Landmarks are crucial for human wayfinding. Their integration in wayfinding assistance systems is essential for generating cognitively ergonomic route directions. I prese...
176
Voted
COSIT
2007
Springer
15 years 9 months ago
2007
Springer
Consistent and flawless communication between humans and machines is the precondition for a computer to process instructions correctly. While machines use well-defined languages an...
139
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COSIT
2009
Springer
15 years 9 months ago
2009
Springer
Abstract. This paper addresses the problem of merging qualitative constraint networks (QCNs) defined on different qualitative formalisms. Our model is restricted to formalisms wher...
141
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GIS
1997
ACM
15 years 9 months ago
1997
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involve...