1,281 research outputs found
Supermodular aggregation evaluators
No full textWe analyze a particular complete vector lattice in order to study aggregation operators, their compositions and relationships with evaluators and the particular case of supermodular aggregation evaluators
Bivariate copula-based aggregation operators
No full textThis paper presents the role of copulafunc-
tions in the theory of aggregation operators.
In this context we are focusing our attention
abouts everal properties of aggregation
functions,like supermodularity andSchur-
concavity, studying also a decompositionof
supermodular binary aggregation operators
and copulae
A copula -based approach to aggregation functions
No full textworking paper DMA (IDEAS) n.139
ISSN: 1828-688
ON VISCOSITY AND GEOMETRICAL SOLUTIONS OF HAMILTON JACOBI EQUATIONS
No full textIn this paper the author relates a geometric solution for the Cauchy problem to a convex Hamilton-Jacobi equation with its unique viscosity solution. The viscosity solution is shown to correspond to the inf sup of the Morse family generating the geometric solution given previously by the author [Nuovo Cimento B (11) 104 (1989), no. 5, 525--544].
Reviewed by George Kossiori
Aggregations functions: a multivariate approach using copulae
No full textIn this paper we present the extension of the copula approach to aggregation functions.
In fact we want to focus on a class of aggregation functions and
present them in the multi linear form with marginal copulae.
Moreover we will define also the joint aggregation density function
Multivariate dependence modeling using copulas
No full textThere exist necessary and sufficient conditions on the generating functions of the FGM family, in order to obtain various dependence properties.
We present multivariate generalizations of this class studying symmetry and dependence concepts, measuring the dependence among the components of each class and providing several examples
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