856 search results - page 26 / 172 » Location-based Spatial Queries |
P2P
2003
IEEE
14 years 4 months ago
2003
IEEE
Sensor networks, that consist of potentially several thousands of nodes each with sensing (heat, sound, light, magnetism, etc.) and wireless communication capabilities, provide gr...
GIS
2006
ACM
14 years 12 months ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
ADBIS
2003
Springer
14 years 4 months ago
2003
Springer
Let a tuple of n objects obeying a query graph (QG) be called the n-tuple. The “Ddistance-value” of this n-tuple is the value of a linear function of distances of the n objects...
SIGMOD
2011
ACM
13 years 1 months ago
2011
ACM
With the proliferation of geo-positioning and geo-tagging, spatial web objects that possess both a geographical location and a textual description are gaining in prevalence, and s...
GEOINFO
2004
14 years 10 days ago
2004
: Nowadays, the database characteristics, such as the huge volume of data, the complexity of the queries, and even the data availability, can demand minutes or hours to process a q...