data envelopment analysis (dea) has been applied in many studies in the banking industry but deficiency of empirical studies in iranian banking sector that incorporate time factor into the efficiency, have still remained. previous studies measured the efficiency of bank branches in a single period within cross-sectional data. they did not consider the effect of interconnecting activities (links...

Some astronomy projects require a blind search through a vast number of hypotheses to detect objects of interest. The number of hypotheses to test can be in the billions. A naive blind search over every single hypothesis would be far too costly computationally. We propose a hierarchical scheme for blind search, using various ‘resolution’ levels. At lower resolution levels, ‘regions’ of interest...

Collaborative environments present an happy hunting ground for worms due to inherent trust present amongst the peers. We present a novel control-theoretic approach to respond to zero-day worms in a signature independent fashion in a collaborative environment. A federation of collaborating peers share information about anomalies to estimate the presence of a worm and each one of them independent...

The paper argues that the notion of Pareto efficiency builds on two normative assumptions: the more general consequentialist norm of any efficiency criterion, and the strong no-harm principle of the prohibition of any redistribution during the economic process that hurts at least one person. These normative concerns lead to a constrained and static notion of efficiency in mainstream economics, ...

As most of the performance measures proposed for dynamic optimization algorithms in the literature are only for single objective problems, we propose new measures for dynamic multi-objective problems. Specifically, we give new measures for those problems in which the Pareto fronts are unknown. As these problems are the most common in the industry, our proposed measures constitute an important c...

This paper is concerned with long-run average cost minimization of a stochastic inventory problem with Markovian demand, fixed ordering cost, convex surplus cost, and lost sales. The states of the Markov chain represent different possible states of the environment. Using a vanishing discount approach, a dynamic programming equation and the corresponding verification theorem are established. Fin...

Atlas models are a class of equity market models in which the dynamics of the price of an asset only depends on its rank within the portfolio. When this dynamics exhibits a meanfield scaling, propagation of chaos techniques arising from kinetic theory lead to a functional nonlinear description of the evolution of the market. In particular, one can obtain a fluid limit for the distribution of th...