609 search results - page 11 / 122 » Collective spatial keyword querying |
GIS
2010
ACM
13 years 4 months ago
2010
ACM
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of app...
MIR
2004
ACM
14 years 27 days ago
2004
ACM
In this paper, we present an index structure-based method to fast and robustly search short video clips in large video collections. First we temporally segment a given long video ...
DEXA
2003
Springer
14 years 21 days ago
2003
Springer
Emerging applications using miniature electronic devices (e.g., tracking mobile objects using sensors) generate very large amounts of highly dynamic data that poses very high overh...
EDBT
2004
ACM
14 years 26 days ago
2004
ACM
Abstract. We present a cost-based adaptive clustering method to improve average performance of spatial queries (intersection, containment, enclosure queries) over large collections...
GIS
2007
ACM
13 years 11 months ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...