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AUSAI
2004
Springer
14 years 1 months ago
A Logic Based Approach for Dynamic Access Control
The PolicyUpdater1 system is a fully-implemented access control system that provides policy evaluations as well as dynamic policy updates. These functions are achieved by the use o...
Vino Fernando Crescini, Yan Zhang
NIPS
1993
13 years 9 months ago
Using Local Trajectory Optimizers to Speed Up Global Optimization in Dynamic Programming
Dynamic programming provides a methodology to develop planners and controllers for nonlinear systems. However, general dynamic programming is computationally intractable. We have ...
Christopher G. Atkeson
CDC
2010
IEEE
139views Control Systems» more  CDC 2010»
13 years 2 months ago
Q-learning and enhanced policy iteration in discounted dynamic programming
We consider the classical finite-state discounted Markovian decision problem, and we introduce a new policy iteration-like algorithm for finding the optimal state costs or Q-facto...
Dimitri P. Bertsekas, Huizhen Yu
CORR
2010
Springer
119views Education» more  CORR 2010»
13 years 7 months ago
Dynamic Policy Programming
In this paper, we consider the problem of planning and learning in the infinite-horizon discounted-reward Markov decision problems. We propose a novel iterative direct policysearc...
Mohammad Gheshlaghi Azar, Hilbert J. Kappen
POPL
2010
ACM
14 years 5 months ago
Dynamically Checking Ownership Policies in Concurrent C/C++ Programs
Concurrent programming errors arise when threads share data incorrectly. Programmers often avoid these errors by using synchronization to enforce a simple ownership policy: data i...
Jean-Phillipe Martin, Michael Hicks, Manuel Costa,...