Search Results for author: Konstantinos G. Papakonstantinou

Found 3 papers, 2 papers with code

POMDP inference and robust solution via deep reinforcement learning: An application to railway optimal maintenance

1 code implementation16 Jul 2023 Giacomo Arcieri, Cyprien Hoelzl, Oliver Schwery, Daniel Straub, Konstantinos G. Papakonstantinou, Eleni Chatzi

The POMDP with uncertain parameters is then solved via deep RL techniques with the parameter distributions incorporated into the solution via domain randomization, in order to develop solutions that are robust to model uncertainty.

Decision Making Reinforcement Learning (RL)

Bridging POMDPs and Bayesian decision making for robust maintenance planning under model uncertainty: An application to railway systems

1 code implementation15 Dec 2022 Giacomo Arcieri, Cyprien Hoelzl, Oliver Schwery, Daniel Straub, Konstantinos G. Papakonstantinou, Eleni Chatzi

We present a framework to estimate POMDP transition and observation model parameters directly from available data, via Markov Chain Monte Carlo (MCMC) sampling of a Hidden Markov Model (HMM) conditioned on actions.

Decision Making

Inference and dynamic decision-making for deteriorating systems with probabilistic dependencies through Bayesian networks and deep reinforcement learning

no code implementations2 Sep 2022 Pablo G. Morato, Charalampos P. Andriotis, Konstantinos G. Papakonstantinou, Philippe Rigo

In terms of policy optimization, we adopt a deep decentralized multi-agent actor-critic (DDMAC) reinforcement learning approach, in which the policies are approximated by actor neural networks guided by a critic network.

Decision Making Decision Making Under Uncertainty +1

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