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GIS
2005
ACM
15 years 11 months ago
2005
ACM
Recent research literature on sensor network databases has focused on finding ways to perform in-network aggregation of sensor readings to reduce the message cost. However, with t...
MSWIM
2006
ACM
15 years 4 months ago
2006
ACM
As mobile devices, such as laptops, PDAs or mobile phones, are getting more and more ubiquitous and are able to communicate with each other via wireless technologies, the paradigm...
HOTOS
2003
IEEE
15 years 3 months ago
2003
IEEE
Distributed writable storage systems typically provide NFS-like semantics and unbounded persistence for files. We claim that for planetary-scale distributed services such facilit...
IPMU
2010
Springer
15 years 2 months ago
2010
Springer
We introduce a general definition for the independence of a number of finite-valued variables, based on coherent lower previsions. Our definition has an epistemic flavour: it a...
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SIGMOD
1998
ACM
15 years 2 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...