25111 search results - page 4691 / 5023 » Information Systems |
196
click to vote
EDBT
2006
ACM
16 years 7 months ago
2006
ACM
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
188
click to vote
EDBT
2008
ACM
16 years 7 months ago
2008
ACM
In the classical database world, information access has been based on a paradigm that involves structured, schema-aware, queries and tabular answers. In the current environment, h...
167
click to vote
ICSE
2007
IEEE-ACM
16 years 7 months ago
2007
IEEE-ACM
Critical infrastructures like the power grid are emerging as collection of existing separated systems of different nature which are interconnected together. Their criticality becom...
190
click to vote
MOBISYS
2008
ACM
16 years 6 months ago
2008
ACM
Increasingly, 802.11 devices are being used by mobile users. This results in very dynamic wireless channels that are difficult to use efficiently. Current rate selection algorithm...
161
click to vote
MOBIHOC
2008
ACM
16 years 6 months ago
2008
ACM
In this paper, we identify a new problem in wireless sensor networks, distance sensitive service discovery, where nearby or closest service selection guarantee is expected. We pro...