We deal with the problem of combining sets of independence statements coming from different experts. It is known that the independence model induced by a strictly positive probability distribution has a graphoid structure, but the explicit computation and storage of the closure (w.r.t. graphoid properties) of a set of independence statements is a computational hard problem. For this, we rely on a compact symbolic representation of the closure called fast closure and study three different combination strategies of two sets of independence statements, working on fast closures. We investigate when the complete DAG representability of the given models is preserved in the combined one.

Qualitative combination of independence models / Marco, Baioletti; Petturiti, Davide; Vantaggi, Barbara. - STAMPA. - LNAI 7958(2013), pp. 37-48. - LECTURE NOTES. [10.1007/978-3-642-39091-3_4].

Qualitative combination of independence models

PETTURITI, DAVIDE;VANTAGGI, Barbara
2013

Abstract

We deal with the problem of combining sets of independence statements coming from different experts. It is known that the independence model induced by a strictly positive probability distribution has a graphoid structure, but the explicit computation and storage of the closure (w.r.t. graphoid properties) of a set of independence statements is a computational hard problem. For this, we rely on a compact symbolic representation of the closure called fast closure and study three different combination strategies of two sets of independence statements, working on fast closures. We investigate when the complete DAG representability of the given models is preserved in the combined one.
Symbolic and Quantitative Approaches to Reasoning with Uncertainty
9783642390906
9783642390913
perfect maps; independence models; dag
02 Pubblicazione su volume::02a Capitolo o Articolo
Qualitative combination of independence models / Marco, Baioletti; Petturiti, Davide; Vantaggi, Barbara. - STAMPA. - LNAI 7958(2013), pp. 37-48. - LECTURE NOTES. [10.1007/978-3-642-39091-3_4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/528012
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