{ "id": "2003.08544", "version": "v1", "published": "2020-03-19T02:32:26.000Z", "updated": "2020-03-19T02:32:26.000Z", "title": "EM algorithm for stochastic hybrid systems", "authors": [ "Masaaki Fukasawa" ], "categories": [ "math.PR", "math.ST", "stat.TH" ], "abstract": "A stochastic hybrid system, also known as a switching diffusion, is a continuous-time Markov process with state space consisting of discrete and continuous parts. We consider parametric estimations of the Q matrix for the discrete state transitions and of the drift coefficient for the diffusion part based on a partial observation where the continuous state is monitored continuously in time, while the discrete state is unobserved. Extending results for hidden Markov models developed by Elliot et al. [1], we derive a finite-dimensional filter and the EM algorithm for stochastic hybrid systems.", "revisions": [ { "version": "v1", "updated": "2020-03-19T02:32:26.000Z" } ], "analyses": { "keywords": [ "stochastic hybrid system", "em algorithm", "hidden markov models", "discrete state transitions", "continuous-time markov process" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }