This paper discusses the implications of the decomposition property of the Theil index in sequences of nested and hierarchic grouping structures, formalizing general results applicable to a generic sequence of grouping structures. A specific application to data on wages and employment by industrial classification to measure the evolution of wage inequality through time will be explored, analyzi...

Multiple antennas have become a common component of wireless networks, improving range, throughput, and spatial reuse, both at the link and network levels. At the same time, carrier sensing is a widely used method of improving spatial reuse in distributed wireless networks, especially when there is limited coordination among non-communicating nodes. While the combination of carrier sensing and ...

Spatial data warehouses (SDW) and spatial OLAP (SOLAP) systems are well-known business intelligence technologies that aim to support a multidimensional and online analysis for a large volume of geo-referenced datasets. SOLAP systems are already used in the context of natural hazards for analyzing sensor data and experts’ measurements. Recently, new data gathering tools coined as volunteered geo...

Background Equilibrium is a central concept in numerous disciplines including economics, management science/operations research, and engineering. Methodologies that have been applied to the formulation , qualitative analysis, and computation of equilibria have included • systems of equations, • optimization theory, • complementarity theory, and • fixed point theory. Variational inequality theor...

Asia is the most populous continent on earth. Changes in inequality or poverty in this region alter the corresponding global picture. Due to its remarkable economic growth and catch up in living standards, Asia has been an equalizing force in constituting international inequality. However, within-country inequalities in Asia are fast rising, which have contributed to the slow down in poverty re...

mics, policy makers, and even politicians that poverty and inequality should no longer be treated as soft “social issues” that can safely be subordinated to more fundamental interests in maximizing total economic output. The most important sources of this newfound concern with poverty and inequality are (1) the spectacular increase in economic inequality and other forms of disadvantage in many ...

Taking the design of data analyzing software for imaging brain function — SPM (Statistical Parameters Mapping) for reference, this study combined MATLAB, GIS and SDM organically, constructed an SDM system framework on MATLAB platform, integrated the major algorithms such as spatial association rule mining, spatial clustering analyzing, decision tree analyzing and so on, and applied the system i...

This paper presents the …rst study of environmental inequality related to health in France at the national scale. Through an econometric analysis based on a panel data from 2000 to 2004 at a department level, we investigate total mortality rate in relation to socioeconomic status and air pollution. Concentration level of CO, SO2, NO2, NO, O3 and PM10 are estimated by spatial interpolation from ...