Journal
SCANDINAVIAN JOURNAL OF STATISTICS
Volume 34, Issue 1, Pages 169-185Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1467-9469.2006.00528.x
Keywords
conditional independence; counting processes; Granger causality; local independence; multistate models
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Composable Markov processes were introduced by Schweder (1970) in order to capture the idea that a process can be composed of different components where some of these only depend on a subset of the other components. Here we propose a graphical representation of this kind of dependence which has been called 'local dependence'. It is shown that the graph allows to read off further independencies characterizing the underlying Markov process. Also, some standard methods for inference are adapted to exploit the graphical representation, e.g. for testing local independence.
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