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» Querying spatial patterns
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GIS
2007
ACM
16 years 1 months ago
Cluster By: a new sql extension for spatial data aggregation
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
Chengyang Zhang, Yan Huang
GIS
1998
ACM
15 years 1 days ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
SSD
2005
Springer
93views Database» more  SSD 2005»
15 years 5 months ago
Semantic Caching for Multiresolution Spatial Query Processing in Mobile Environments
Spatial data are particularly useful in mobile environments. However, due to the low bandwidth of most wireless networks, developing large spatial database applications becomes a c...
Sai Sun, Xiaofang Zhou, Heng Tao Shen
78
Voted
SOFTWARE
1998
15 years 23 hour ago
A New Way to Query GISs on the Web
BMS organizes information in abstract name spaces and lets users refer to thedatathroughtheirvalues,whileaspatialDBMSorganizesinformationinconcrete 2D geometric spaces and lets use...
Serena Coetzee, Judith Bishop
82
Voted
WIAS
2010
98views more  WIAS 2010»
14 years 10 months ago
Spatial pattern growth and emergent animat segregation
Spatial agent models can be used to explore self-organising effects such as pattern growth and segregation. We employ our predator-prey model to study these emergent behaviours in...
Kenneth A. Hawick, C. J. Scogings