Abstract
In this paper the optimal control of a continuous-time hidden Markov model is discussed. The risk-sensitive problem involves a cost function which has an exponential form and a risk parameter, and is solved by defining an appropriate information state and dynamic programming. As the risk parameter tends to zero, the classical risk-neutral optimal control problem is recovered. The limits are proved using viscosity solution methods.
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The first author wishes to acknowledge the funding of the activities of the Cooperative Research Centre for Robust and Adaptive Systems by the Australian Commonwealth Government under the Cooperative Research Centers Program. The support of NSERC Grant A7964 is acknowledged by the second author, as is the hospitality of the Department of Systems Engineering and the Cooperative Research Centre for Robust and Adaptive Systems, Australian National University, in July 1993.
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James, M.R., Elliott, R.J. Risk-sensitive and risk-neutral control for continuous-time hidden Markov models. Appl Math Optim 34, 37–50 (1996). https://doi.org/10.1007/BF01182472
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DOI: https://doi.org/10.1007/BF01182472
Key words
- Risk-sensitive stochastic optimal control
- Finite-dimensional filters
- Hidden Markov models
- Viscosity solutions