semi-Markov process
nounEtymology Named after Russian mathematician Andrey Markov (Андре́й Андре́евич Ма́рков) (1856—1922), who researched the processes.
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Mathematics, Probability theory, Sciences A generalization of the Markov chain in which the distribution of the amount of time that the process spends in a given state is permitted to be nonexponentially (generally) distributed.