Although research on the economic value of IT has predominantly focused on firm-level impacts, recent studies have begun incorporating industry-level variables to examine their impact on the value a firm obtains from its IT investments. This trend originated in the aim to offer better contextualized explanations for the differences in value firms obtained from their IT investments across differ...

 In many practical distribution networks, managers face significant uncertainties in demand, local price of building facilities, transportation cost, and macro and microeconomic parameters. This paper addresses design of distribution networks in a supply chain system which optimizes the performance of distribution networks subject to required service level. This service level, which is consider...

In medical law education, discussion of real-world cases is frequently used to complement conventional lecture-based learning. However, it is currently unclear how to evaluate whether a discussion does promote the desired understanding of medical law concepts. We report an analysis of conceptual change in dialogues between medical students as they attempted to explain the verdicts in several ne...

In this paper we present i•com, a tool for intelligent conceptual modelling. i•com allows for the specification of multiple EER diagrams and interand intra-schema constraints. Complete logical reasoning is employed by the tool to verify the specification, infer implicit facts, and manifest any inconsistencies.

We present an optimal mass transport framework on the space of Gaussian mixture models, which are widely used in statistical inference. Our method leads to a natural way to compare, interpolate and average Gaussian mixture models. Basically, we study such models on a certain submanifold of probability densities with certain structure. Different aspects of this framework are discussed and severa...

Coupled human and natural systems (CHANS) manifest various complexities such as heterogeneity, non-

Coupled human and natural systems (CHANS) manifest various complexities such as heterogeneity, non-

This paper investigates the impacts inventory shortage policies have on transportation costs in base-stock distribution systems under uncertain demand. The model proposed demonstrates how backlogging arrangements can serve to decrease the variability of transportation capacity requirements, and hence the magnitude of transportation costs, when compared with policies that expedite demand shortag...

This paper formulates a mathematical model for the Green Vehicle Routing Problem (GVRP), incorporating bi-fuel (natural gas and gasoline) pickup trucks in a mixed vehicle fleet. The objective is to minimize overall costs relating to service (earliness and tardiness), transportation (fixed, variable and fuel), and carbon emissions. To reflect a real-world situation, the study considers: (1) a co...

Coupled human and natural systems (CHANS) manifest various complexities such as heterogeneity, non-