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Optimal sensor scheduling via classification reduction of policy search

By Doron Blatt and Alfred O. Hero


The problem of sensor scheduling in multimodal sensing systems is formulated as the sequential choice of experiments problem and solved via reinforcement learning methods. The sequential choice of experiments problem is a partially observed Markov decision problem (POMDP) in which the underlying state of nature is the system’s state and the sensors’ data are noisy state observations. The goal is to find a policy that sequentially determines the best sensor to deploy based on past data, which maximizes a given utility function while minimizing the deployment cost. Several examples are considered in which the exact model of the measurements given the state of nature is unknown but a generative model (a simulation or an experiment) is available. The problem is formulated as a reinforcement learning problem and solved via a reduction to a sequence of supervised classification subproblems. Finally, a simulation and an experiment with real data demonstrate the promise of our approach. I

Year: 2006
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