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ICDE
2000
IEEE
168views Database» more  ICDE 2000»
14 years 10 months ago
PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
Paolo Ciaccia, Marco Patella
ANOR
2002
128views more  ANOR 2002»
13 years 8 months ago
Crew Assignment via Constraint Programming: Integrating Column Generation and Heuristic Tree Search
The Airline Crew Assignment Problem (ACA) consists of assigning lines of work to a set of crew members such that a set of activities is partitioned and the costs for that assignmen...
Meinolf Sellmann, Kyriakos Zervoudakis, Panagiotis...
TVLSI
1998
83views more  TVLSI 1998»
13 years 8 months ago
Low overhead fault-tolerant FPGA systems
— Fault-tolerance is an important system metric for many operating environments, from automotive to space exploration. The conventional technique for improving system reliability...
John Lach, William H. Mangione-Smith, Miodrag Potk...
EDBT
2009
ACM
131views Database» more  EDBT 2009»
13 years 12 months ago
Sample synopses for approximate answering of group-by queries
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
Philipp Rösch, Wolfgang Lehner
HPDC
2009
IEEE
14 years 3 months ago
Maintaining reference graphs of globally accessible objects in fully decentralized distributed systems
Since the advent of electronic computing, the processors’ clock speed has risen tremendously. Now that energy efficiency requirements have stopped that trend, the number of proc...
Björn Saballus, Thomas Fuhrmann