engVolume 6, No. 2, 2011
- Pogosyan K.S., Ledenyova T.M.
«The task of forming the optimal linguistic scale for a group of experts»
Problem of forming optimal linguistic scale for experts group on the basis of their individual linguistic scale is considered in this article. The resulting linguistic scale provides a minimum degree of mismatch of individual expert estimates.Keywords: linguistic variable, linguistic scale, fuzzy numbers, consensus of experts' opinions, the coefficient mismatch of linguistic scale.
Resources: title page of the article, elibrary.ru.
- Shefova N.A., Yazenin A.V.
«Investigation of two-dimensional model of the securities portfolio under condition of hybrid uncertainty»
This paper investigates a two-dimensional possibilistic-probabilistic model of security portfolio and the impact of the relationship measure between probabilistic components of fuzzy random variables representing assets \linebreak profitability to investment opportunities.Keywords: security portfolio, fuzzy random variable, equivalent determinate analog, possibilistic-probabilistic environment, investment opportunities.
Resources: title page of the article, elibrary.ru.
- Filchenkov A.A., Tulupyev A.L., Sirotkin A.V.
«Algebraic bayesian network minimal join graphs: formalization of synthesis basis and automated learning»
Algebraic Bayesian network (ABN) is a probabilistic graphical model of databases of knowledge patterns with uncertainty. Its secondary structure is a graph which represents a network of relations between the knowledge patterns. Formulation and prove of the theorem of the ABN minimal join graph (MJG) set is given. Also its application to the MJG set synthesis is shown. The problem of ABN global learning is formulated and ABN secondary structure quality estimation criteria system is proposed.Keywords: algebraic Bayesian networks, secondary structure, join graphs, automated learning, machine learning, structure synthesis.
Resources: title page of the article, elibrary.ru.