0377-2217/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.ejor.2010.03.039 * Corresponding author. E-mail address: [email protected] (P.J. Korho 1 The term ‘‘radial” in the traditional DEA-literature reach the efficient frontier by proportionally increasi outputs or decreasing the values of the current inputs We develop an approach to efficiency analysis to enable us to incorporate in...

We propose a tightening sequence of optimistic approximations to the Gittins index in “Optimistic Indices.” show that use these concert with an increasing discount factor appears offer compelling alternative state-of-the-art schemes proposed for Bayesian multiarmed bandit problem. prove indices constitutes regret optimal algorithm. Perhaps more interestingly, even loosest substantial performanc...

data envelopment analysis (dea) is a mathematical programming-based approach for evaluates the relative efficiency of a set of dmus (decision making units). the relative efficiency of a dmu is the result of comparing the inputs and outputs of the dmu and those of other dmus in the pps (production possibility set). also, in data envelopment analysis various models have been developed in order to...

Data envelopment analysis (DEA) is a technique for measuring the efficiency of decision making units. In all models of the DEA, for each unit under assessment, the numerical efficiency is obtained which may be less than or equal to one. Given the possible large number of functional units, we use various ranking methods for evaluating units. One of the rating methods is Balance index and Topsis....

This paper proposes a simple and efficient method to numerically obtain the mapping degree deg( f , 0, B) of a C1 map f : Rn → Rn at a regular value 0 relative to a bounded open subset B ⊂ Rn. For practical application, this method adopts Aberth’s algorithm which does not require computation of derivatives and determinants, and reduces the computational cost with two additional procedures, name...

Optimistic concurrency relies on speculative execution, read-write conflict detection, and checkpointrollback techniques to provide a programming model that replaces locks with the abstraction of atomic, isolated execution of critical sections. Previous research has shown that on chip multi-processors, a class of workloads featuring irregular parallelism and rare read-write conflicts can reap s...