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SIAMMAX
2010
156views more  SIAMMAX 2010»
14 years 10 months ago
Preconditioned Conjugate Gradient Method for Optimal Control Problems with Control and State Constraints
Optimality systems and their linearizations arising in optimal control of partial differential equations with pointwise control and (regularized) state constraints are considered. ...
Roland Herzog, Ekkehard W. Sachs
SODA
2010
ACM
173views Algorithms» more  SODA 2010»
16 years 1 months ago
Distributed Agreement with Optimal Communication Complexity
We consider the problem of fault-tolerant agreement in a crash-prone synchronous system. We present a new randomized consensus algorithm that achieves optimal communication effici...
Seth Gilbert, Dariusz Kowalski
CDC
2009
IEEE
122views Control Systems» more  CDC 2009»
15 years 8 months ago
Optimal mistuning for improved stability of vehicular platoons
— We consider a decentralized bidirectional control of a platoon of N identical vehicles moving in a straight line. Such problems are known to suffer from poor stability margin a...
Prabir Barooah, Prashant G. Mehta
BNCOD
1997
111views Database» more  BNCOD 1997»
15 years 5 months ago
Improved and Optimized Partitioning Techniques in Database Query Processing
Abstract. In this paper we present two improvements to the partitioning process: 1) A new dynamic bu er management strategy is employed to increase the average block size of I/O-tr...
Kjell Bratbergsengen, Kjetil Nørvåg
CORR
2010
Springer
146views Education» more  CORR 2010»
15 years 4 months ago
Adaptive Submodularity: A New Approach to Active Learning and Stochastic Optimization
Solving stochastic optimization problems under partial observability, where one needs to adaptively make decisions with uncertain outcomes, is a fundamental but notoriously diffic...
Daniel Golovin, Andreas Krause