کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
389749 661173 2014 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
DAG representation of asymmetric independence models arising in coherent conditional possibility theory
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
DAG representation of asymmetric independence models arising in coherent conditional possibility theory
چکیده انگلیسی

In this paper we study the representation by means of an acyclic directed graph (DAG) of the independence model induced by a coherent T-conditional possibility (where T stands for the minimum or a strict t-norm). Such models are in general not closed under symmetric property, so we must rely on a proper asymmetric notion of vertex separation which produces structures closed under all graphoid properties and their reverses except for symmetry (namely, asymmetric graphoids). Focusing on this kind of models we present an efficient procedure to generate and represent them symbolically. We then introduce asymmetric Markov properties and prove their equivalence, providing in this way a method to extract the model encoded in a DAG. Finally, an algorithm to build a minimal I-map, given an ordering of the random variables, is drawn.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuzzy Sets and Systems - Volume 250, 1 September 2014, Pages 1–24
نویسندگان
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