The goal of grid computing is to provide powerful computing for complex scientific problems by utilizing and sharing large scale resources available in the grid. Efficient scheduling algorithms are needed to allocate suitable resources for each submitted task. So scheduling is one of the most important issues for achieving high performance computing in grid. This paper addresses an approach for...

A natural river often finds good paths among lots of possible paths in its ways from the source to destination. These near optimal or optimal paths are obtained by the actions and reactions that occur among the water drops and the water drops with the riverbeds. The intelligent water drops (IWD) algorithm is a new swarm-based optimisation algorithm inspired from observing natural water drops th...

In this paper, the newly introduced swarm-based optimisation algorithm called intelligent water drops (IWDs) algorithm is adjusted to optimise a modified Otsu’s criterion for automatic multilevel thresholding. The proposed algorithm simply called IWD-AMLT is tested with several grey-level images and its performance is assessed by the peak signal to noise ratio (PSNR) measure. The thresholded im...

Previous estimates have indicated that in 2005, there were 4,072 individuals with dementia (IWD) in the Maltese islands and that this number would almost double by the year 2050. These figures were based on the EURODEM project that analysed the results of a population-based systematic review of published studies on the global prevalence of dementia from 1980 to 2004. Since then, further dementi...

Scheduling has become a popular area for artificial intelligence and expert system researchers during last decade. In this paper, a new metaheuristic algorithm entitled intelligent water drops (IWD) is adapted for solving a generalized kind of order scheduling problem where rejection of received orders is allowed with a penalty cost. At the beginning of production period, a set of orders are re...

BACKGROUND The increasing prevalence of dementia in the next decades is accompanied by various societal and economic problems. Previous studies have suggested that physical activity positively affects motor and cognitive skills in individuals with dementia (IWD). However, there is insufficient evidence probably related to several methodological limitations. Moreover, to date adequate physical a...

Abstract Travelling salesman problem (TSP) is a well known combinatorial optimization which has drawn colossal attention due to its eclectic range of applications. In this article, we have proposed two modified versions intelligent water drops (IWD) algorithm. The first one the enhanced IWD (e-IWD) algorithm solve single objective TSP. second modification, e-IWD been extended multi-objective IW...

In this paper, we use the lower record values from the inverse Weibull distribution (IWD) to develop and discuss different methods of estimation in two different cases, 1) when the shape parameter is known and 2) when both of the shape and scale parameters are unknown. First, we derive the best linear unbiased estimate (BLUE) of the scale parameter of the IWD. To compare the different methods o...

163904-4747-IJECS-IJENS © August 2016 IJENS I J E N S Abstract— The intelligent water drops (IWD) algorithm was introduced in 2007 by Hamed Shah Hosseini, and has been successfully implemented to solve many types of optimization problems, especially traveling salesman problem (TSP). The algorithm works by imitating the behavior of the natural river water drops. Principally, the algorithm finds ...

BACKGROUND Pulse wave analysis permits non-invasive assessment of indices of arterial elasticity. Decreased arterial elasticity results in higher pulse wave velocity and therefore earlier wave reflection. AIM The aim of this study was to evaluate the short-term variability for measurement of surface arteries. METHOD For detection of artery wall movement, a plethysmography method was used. T...