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Risk-sensitive filtering and smoothing for continuous-time Markov Processes

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3 Author(s)
Malcolm, W.P. ; Nat. ICT Australia (NICTA), Canberra, ACT, Australia ; Elliott, R.J. ; James, M.R.

We consider risk sensitive filtering and smoothing for a dynamical system whose output is a vector process in R2. The components of the observation process are a Markov process observed through a Brownian motion and a Markov process observed through a Poisson process. Risk-sensitive filters for the robust estimation of an indirectly observed Markov state processes are given. These filters are stochastic partial differential equations for which robust discretizations are obtained. Computer simulations are given which demonstrate the benefits of risk sensitive filtering.

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Information Theory, IEEE Transactions on  (Volume:51 ,  Issue: 5 )