A classification algorithm, called the Linear Centralization Classifier (LCC), is introduced. The algorithm seeks to find a transformation that best maps instances from the feature space to a space where they concentrate towards the center of their own classes, while maximimizing the distance between class centers. We formulate the classifier as a quadratic program with quadratic constraints. W...

Interior Point methods for Nonlinear Programming have been extensively used to solve the Optimal Power Flow problem. These optimization algorithms require the solution of a set of nonlinear equations to obtain the optimal solution of the power network equations. During the iterative process to solve these equations, the search for the optimum is based on the combination of two directions: the a...

This study is about the structure embedded in e-mail relationships. Based on data describing organizational e-mail exchanges, this research deals with organizational structure, personal power, and the centrality of people in a network. Social network analysis is used to study the centralization dimension of the structure embedded in the data. The data concerns 385 employees of 36 firms within a...

In order to achieve the potential of existing power stations, increase the efficiency of waterpower, and change the running of power stations from an individual plant basis to centralization, many people have researched the automation of power stations over the years with excellent results. However, in reality there are no power stations that have been fully automated. This paper proposes a con...

BACKGROUND Compliance with minimum volume standards for specific procedures serves as a criterion for high-quality patient care. International experiences report a centralization of the respective procedures. In Germany, minimum volume standards for hospitals were introduced in 2004 for 5 procedures (complex esophageal and pancreatic interventions; liver, kidney and stem cell transplantations),...

Are states with more centralized approaches to education governance more likely to have higher student achievement and lower achievement gaps between poor and nonpoor students? This article addresses that question by theorizing about the effects of political, administrative, and fiscal centralization on student outcomes. It tests competing hypotheses about the degree to which centralization acr...

one of the main problems in the efficiency and efficacy of an organization is its structural issue. organizational culture is also considered as an effective factor in the performance of many organizations. the main goal of the present study was to determine the relationship of centralization and organizational culture and performance indexes in teaching hospitals affiliated to tehran universit...

This paper studies the choice between centralization and decentralization of fiscal policy in a political economy setting. With centralization, regional delegates vote over agendas comprising sets of regionspecific projects. The outcome is inefficient because the choice of projects is insufficiently sensitive to within-region benefits. The number of projects funded may be non-monotonic in the s...