915 search results - page 34 / 183 » Maximally Abstract Retrenchments |
ADBIS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We consider the problem of query containment for conjunctive queries with the safe negation property. Some necessary conditions for this problem are given. A part of the ...
ERSHOV
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We consider the problem of query containment for conjunctive queries with safe negation property. A necessary and sufficient condition for two queries to be in containmen...
WEBI
2007
Springer
14 years 2 months ago
2007
Springer
We present a framework for media interpretation that leverages low-level information on to a higher level of abstraction in order to support semantics-based information retrieval ...
SIGMETRICS
2006
ACM
14 years 1 months ago
2006
ACM
Abstract— We consider a wireless system with multiple channels where each channel is either on or off, and probing the state of any channel incurs a cost. We present a polynomial...
ESA
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. The problem of maximizing the weighted throughput in various switching settings has been intensively studied recently through competitive analysis. To date, the most gene...