Optimal junction Trees
نویسندگان
چکیده
Finn V. Jensen Frank Jensen Department of Mathematics and Computer Science Aalborg University Fredrik Bajers Vej 7E, DK-9220 Aalborg st, Denmark E-mail: [email protected], [email protected] Abstract The paper deals with optimality issues in connection with updating beliefs in networks. We address two processes: triangulation and construction of junction trees. In the rst part, we give a simple algorithm for constructing an optimal junction tree from a triangulated network. In the second part, we argue that any exact method based on local calculations must either be less e cient than the junction tree method, or it has an optimality problem equivalent to that of triangulation.
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