The community of program optimisation and analysis, code performance evaluation, parallelisation and optimising compilation has published since many decades hundreds of research and engineering articles in major conferences and journals. These articles study efficient algorithms, strategies and techniques to accelerate programs execution times, or optimise other performance metrics (MIPS, code ...

In this survey we review methods to analyze open queueing network models for discrete manufacturing systems. We focus on design and planning models for job shops. The survey is divided in two parts: in the first we review exact and approximate decomposition methods for performance evaluation models for single and multiple product class networks. The second part reviews optimization models of th...

Running on billions of today’s computing devices, JavaScript has become a ubiquitous platform for deploying web applications. Unfortunately, an application developer who wishes to include a third-party script must enter into an implicit trust relationship with the thirdparty—granting it unmediated access to its entire application content. In this paper, we present js.js, a JavaScript interprete...

In this paper, we discuss the role of adequate modelling tools in the development of nanoelectronic technology and devices, including both down-the-roadmap Complementary Metal-Oxide-Semiconductor (CMOS) technology and alternative nanodevices. Such tools can enable understanding of the relevant physical mechanisms on the one hand, and performance evaluation and optimization of device structures,...

In this paper, a 2-D robust recursive least squares lattice algorithm is introduced and is applied to defect detection problem in textured images. The algorithm combines concepts of 1-D robust regression with the recursive least squares lattice algorithm. The philosophy of using different optimization functions that results in weighted least-squares solutions in the theory of 1-D robust regress...

We focus in this paper on the performance evaluation of video streaming over mobile ad-hoc networks (MANETs) using resource constrained handheld real world devices, namely Nokia 770/N800 Internet Tablets. The main results from our experiments reveal that in principle video streaming in a multi-hop wireless ad-hoc network using such devices is possible. However, playing and forwarding the video ...

In this work we evaluate the performance of routing protocols for mobile ad hoc networks using different physical layer models. The results obtained show that the performance results obtained using idealized models such as the free space propagation model vary significantly when propagation effects such as path loss and shadowing are considered. This difference in performance indicates that opt...

Mobile IP is such a protocol that provides the mobility support in the Internet. However, even with some proposed optimization techniques, there are still some drawbacks in regard to improve its performance. In this paper, a novel bit map indexing scheme has been represented to improve the performance. In this scheme, each mobile node can be shifting to a foreign network which is associated wit...

The reliability of machining accuracy is of great significance to performance evaluation and optimization design of the machine tools. Different geometric errors have various influences on the machining accuracy of the machine tools. The main emphasis of this paper is to propose a generalized method to distribute geometric accuracy of component for improving machining accuracy reliability under...

Pre-filtering is a critical step in 3-D segmentation of the blood vessel and its display. This paper presents the local effect of window/level over the 3-D scale-space approach for filtering the white blood angiographic volumes and its implementation issues. The raw MR angiographic volume is first converted to an isotropic volume, and then the window/level is automatically adjusted slice by sli...