State estimation for cox processes on general spaces

Alan F. Karr

Stochastic Processes and their Applications, 1983, vol. 14, issue 3, 209-232

Abstract: Let N be an observable Cox process on a locally compact space E directed by an unobservable random measure M. Techniques are presented for estimation of M, using the observations of N to calculate conditional expectations of the form E [M]A], where A is the [sigma]-algebra generated by the restriction of N to A. We introduce a random measure whose distribution depends on NA, from which we obtain both exact estimates and a recursive method for updating them as further observations become available. Application is made to the specific cases of estimation of an unknown, random scalar multiplier of a known measure, of a symmetrically distributed directing measure M and of a Markov-directed Cox process on . By means of a Poisson cluster representation, the results are extended to treat the situation where N is conditionally additive and infinitely divisible given M.

Date: 1983
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