Deduplication is now widely accepted as an efficient technique for reducing storage costs at the expense of some processing overhead, being increasingly sought in primary storage systems [7, 8] and cloud computing infrastructures holding Virtual Machine (VM) volumes [2, 1, 5]. Besides a large number of duplicates that can be found across static VM images [3], dynamic general purpose data from V...

Several research works have focused on supporting index access in MapReduce systems. These works have allowed users to significantly speed up selective MapReduce jobs by orders of magnitude. However, all these proposals require users to create indexes upfront, which might be a difficult task in certain applications (such as in scientific and social applications) where workloads are evolving or ...

Image-space occlusion culling is an useful approach to reduce the rendering load of large polygonal models in scientific computing, mechanical engineering, or virtual medicine. Like most large model techniques, occlusion culling trades overhead costs with the rendering costs of the possibly occluded geometry. In this paper we present an occlusion culling toolkit for OpenSG. The toolkit includes...

This paper evaluates alternative rules of liability and compensation for occupational disease. The criterion applied is minimization of the sum of the costs associated with occupational disease, disease prevention, uninsured risk costs, and litigation and insurance overhead or transaction costs. Options considered include the workers' compensation system, the tort system, first party insurance,...

Buffer overflow attacks are widely acknowledged by computer security professionals to be one of the greatest threats to the security of computer systems. We present an integrated softwarehardware approach to protect against buffer overflow attacks while minimizing performance degradation, software development time, and deployment costs. Our technique does not change the processor core, but inst...

In this paper, Intelligent water drop algorithm (IWD) is used to analyze single overhead line connected to grid-grounded arrester. In this approach, at first Norton’s equivalent circuit of the overhead line over lossy soil is computed by method of moments (MoM) and then for the problem under consideration, a nonlinear equivalent circuit in the frequency domain is proposed. Finally applying inte...

Abstract Scalable performance is a major challenge with current model management tools. As the size and complexity of models programs increases cost computing falls, one solution for improving to perform computations on multiple computers. In this paper, we demonstrate low-overhead data-parallel approach distributed validation in context an OCL-like language. Our minimises communication costs b...

This overview of the basics of rate design in network industries should be read in conjunction with Mark Jamison’s, 1997, more comprehensive write-up on rate structure. After describing some of the key concepts, we will examine in some detail the rationale behind rate structures that can reflect incremental costs, while still facilitating the recovery of fixed (often joint or common) costs. In ...

In this paper, a new activity-based method for the concurrent assessment and tracing of costs, energy consumption and waste generation for usage in Life-Cycle Design is presented. The method is based on Activity-Based Costing (ABC). By utilizing ABC we are able to assess and trace accurately overhead and direct costs, energy and waste generation.. The inherent uncertainty is modeled in terms of...

The agenda of high volume manufacturing (HVM) test is cost. Equipment costs, throughput, factory overhead, yield, and many other parameters make up overall test costs. But the start of any cost optimization must start with a very clear perspective of what HVM test must achieve, and what it cannot afford to be responsible for. HVM test is mostly a screen to ensure that outgoing products meet est...