Introduction de dates échues dans l'analyse PERT-coût
Investing in lead-time variability reduction in a quality-adjusted inventory model with finite-range stochastic lead-time.
Knowledge sharing in flexible supply networks: a context-based approach
L'aide multicritère à la décision : un cas d'intégration de critères techniques, économiques et environnementaux à Hydro-Québec
Les problématiques de l'aide à la décision : vers l'enrichissement de la trilogie choix-tri-rangement
Lexicographic α-robustness: an application to the 1-median problem
In the last decade, several robustness approaches have been developed to deal with uncertainty. In decision problems, and particularly in location problems, the most used robustness approach rely either on maximal cost or on maximal regret criteria. However, it is well known that these criteria are too conservative. In this paper, we present a new robustness approach, called lexicographic α-robustness, which compensates for the drawbacks of criteria based on the worst case. We apply this approach...
Managing Uncertainty in the Construction Industry Through the Rough Set Theory
Mathematical analysis of the optimizing acquisition and retention over time problem
While making informed decisions regarding investments in customer retention and acquisition becomes a pressing managerial issue, formal models and analysis, which may provide insight into this topic, are still scarce. In this study we examine two dynamic models for optimal acquisition and retention models of a monopoly, the total cost and the cost per customer models. These models are analytically analyzed using classical, direct, methods and asymptotic expansions (for the total cost model). In...
Mathematical analysis of the optimizing acquisition and retention over time problem
While making informed decisions regarding investments in customer retention and acquisition becomes a pressing managerial issue, formal models and analysis, which may provide insight into this topic, are still scarce. In this study we examine two dynamic models for optimal acquisition and retention models of a monopoly, the total cost and the cost per customer models. These models are analytically analyzed using classical, direct, methods and asymptotic expansions (for the total cost model). In...
Mathematical formulation of relationship between applied marketing effort and potential ability of determining market share.
Mathematical Optimization in Air Traffic Management.
Measuring consistency and inconsistency of pair comparison systems
In this paper we deal with mathematical modeling of real processes that are based on preference relations in the sense that, for every pair of distinct alternatives, the processes are linked to a value of preference degree of one alternative over the other one. The use of preference relations is usual in decision making, psychology, economics, knowledge acquisition techniques for knowledge-based systems, social choice and many other social sciences. For designing useful mathematical models of such...
Méthode d'estimation d'utilités additives concaves en programmation linéaire multiobjectifs
Minimal paths on ordered graphs
Minimizing maximum lateness in two-stage projects by tropical optimization
We are considering a two-stage optimal scheduling problem, which involves two similar projects with the same starting times for workers and the same deadlines for tasks. It is required that the starting times for workers and deadlines for tasks should be optimal for the first-stage project and, under this condition, also for the second-stage project. Optimality is measured with respect to the maximal lateness (or maximal delay) of tasks, which has to be minimized. We represent this problem as a...
Modal Split Modelling Using Multicriteria Analysis and Discrete Fuzzy Sets
Modélisation du jugement humain dans l'analyse multicritère au moyen de comparaisons par paires
Modelización de un DSS para la gestión de productos perecederos.
La gestión de inventarios de productos perecederos ha atraído desde hace tiempo la atención de los investigadores de Dirección de Operaciones. En este artículo se presenta la modelización e implementación de un sistema de apoyo a la toma de decisiones (DSS) para la gestión de productos perecederos, aplicado a la distribución interhospitalaria de hemoderivados. En estos casos se trata de satisfacer en lo posible las demandas, tratando de evitar a la vez la caducidad de los productos en manos de los...
Modification of Topsis Method for Solving of Multicriteria Tasks
Multiattribute Prediction of Terrain Stability Above Underground Mining Operations