887 search results - page 78 / 178 » A Time for Choosing |
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
DIALM
2003
ACM
14 years 2 months ago
2003
ACM
We study topology control problems in ad hoc networks, where network nodes get to choose their power levels in order to ensure desired connectivity properties. Unlike most other w...
SENSYS
2003
ACM
14 years 2 months ago
2003
ACM
Sensor networks often involve the monitoring of mobile phenomena. We believe this task can be facilitated by a spatiotemporal multicast protocol which we call “mobicast”. Mobi...
PROFES
2001
Springer
14 years 1 months ago
2001
Springer
New information is obtained by research and disseminated by papers in conferences and journals. The synthesis of knowledge depends upon social discourse among the experts in a give...
ECP
1997
Springer
14 years 1 months ago
1997
Springer
During the planning process, a planner may have many options for refinements to perform on the plan being developed. The planner’s efficiency depends on how it chooses which ref...