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Un indice de concordance pour l'étude comparative d'opinions sur la conjoncture

Farid Beninel, Michel Grun-Rehomme (1998)

Mathématiques et Sciences Humaines

Un modèle stochastique d'indices d'association sur données binaires d'un panel d'enquêtes conjoncturelles est proposé dans ce travail. Ce Modèle permet de quan tifier la concordance d'opinions entre deux individus et de comparer cette concordance d'une paire d'individus à l'autre. Des propriétés des indices découlant de ce modèle sont également mises en évidence.

Una aplicación de la teoría de la utilidad de Von Neumann a la probabilidad subjetiva.

Enrique Caro (1985)

Trabajos de Estadística e Investigación Operativa

En este artículo se da una condición necesaria y suficiente para la existencia y unicidad de una probabilidad subjetiva, finitamente aditiva, que concuerda con una probabilidad comparativa definida en una cierta clase de sucesos asociada al espacio paramétrico objeto de la inferencia.Nuestra constribución no evita tener que postular la relación de probabilidad comparativa en una clase mayor que la que es objeto de nuestro estudio pues exige la introducción de un espacio auxiliar que es el intervalo...

Una visión unificada de los operadores en la teoría de la evidencia.

Luis Miguel de Campos Ibáñez, María Teresa Lamata Jiménez, Serafín Moral Callejón (1988)

Stochastica

The aim of this paper is to review the different operators defined in the Theory of Evidence. All of them are presented from the same point of view. Special attention is given to the logical operators: conjunction (Dempster's Rule), disjunction and negation (defined by Dubois and Prade), and the operators changing the level of granularity on the set of possible states (partitions, fuzzy partitions, etc.).

Uncertainty orders on the sublinear expectation space

Dejian Tian, Long Jiang (2016)

Open Mathematics

In this paper, we introduce some definitions of uncertainty orders for random vectors in a sublinear expectation space. We all know that, under some continuity conditions, each sublinear expectation 𝔼 has a robust representation as the supremum of a family of probability measures. We describe uncertainty orders from two different viewpoints. One is from sublinear operator viewpoint. After giving definitions such as monotonic orders, convex orders and increasing convex orders, we use these uncertainty...

Usefulness of Biocontrol of Pests in Tea: A Mathematical Model

A. Maiti, A. K. Pal, G. P. Samanta (2008)

Mathematical Modelling of Natural Phenomena

Nowadays there has been a growing consciousness among the tea industry to reduce the use of the chemical pesticides for pest control. Predators are beneficial insects that feed on harmful insects and mites, which incur considerable loss of production of tea. In this paper we have considered a tritrophic model consisting of tea plant, pest and predator to analyze different field observations. The effect of discrete time-delay on the tritrophic model is studied critically. The dynamical behaviours...

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