262 search results - page 48 / 53 » Spatio-temporal join selectivity |
EDBT
2002
ACM
14 years 7 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
SAC
2010
ACM
14 years 2 months ago
2010
ACM
In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...
ATAL
2009
Springer
14 years 2 months ago
2009
Springer
This paper presents a framework for describing the spatial distribution and the global frequency of agents who play the spatial prisoner’s dilemma with coalition formation. The ...
DMSN
2009
ACM
14 years 2 months ago
2009
ACM
In long-term deployments of Wireless Sensor Networks, it is often more efficient to store sensor readings locally at each device and transmit those readings to the user only when ...
SIGCOMM
2009
ACM
14 years 2 months ago
2009
ACM
– The latency between machines on the Internet can dramatically affect users’ experience for many distributed applications. Particularly, in multiplayer online games, players s...