In this paper, uego, a new general technique for accelerating and/or parallelizing existing search methods is suggested. The skeleton of the algorithm is a parallel hill climber. The separate hill climbers work in restricted search regions (or clusters) of the search space. The volume of the clusters decreases as the search proceeds which results in a cooling effect similar to simulated anneali...

This research is motivated by the lack of public awareness importance affective aspects in world education, especially mathematics. In mathematics, a positive attitude towards mathematics which includes self-confidence, flexibility, persistence, curiosity and appreciation role called mathematical disposition. One internal factors that influence disposition Advesity Quotient (AQ) has three level...

When it comes to improving business performance, managers have no shortage of tools and techniques to choose from. But what really works? What's critical, and what's optional? Two business professors and a former McKinsey consultant set out to answer those questions. In a ground-breaking, five-year study that involved more than 50 academics and consultants, the authors analyzed 200 management t...

A proof is presented that shows how the neighborhood structure that is induced under a Gray Code representation repeats under shifting. Convergence proofs are also presented for steepest ascent using a local search bit climber and a Gray code representation: for unimodal 1-D functions and multimodal functions that are separable and unimodal in each dimension, the worst case number of steps need...

The results of Section 5 are of this sort. One sometimes hears the question: Is a GA more powerful than an equal population of hill-climbers, and if so, why? The answer seems to be yes, as noted. But why? Perhaps the basic reason is that the hill-climber can get tripped up by an individual case, whereas on a problem that is GA-easy but not SAO, the GA is carried over such cases by the statistic...

We present a model study that investigates to what extent it is possible to introduce ENSO variability to an Earth system Model of Intermediate Complexity (EMIC). The Zebiak–Cane ENSO model is dynamically coupled to the EMIC CLIMBER-3a, which by itself exhibits no interannual or multidecadal variability. ENSO variability is introduced to CLIMBER-3a by adding ENSO-related sea surface temperature...

1 Task Description Performance is a central issue in the development of (high-performance) parallel systems. The study and analysis of performance is, however, a diicult task. The parallel software engineer (PSE) needs, therefore, tools to support this activity. These tools usually make use of some form of visual notation in order to simplify the presentation of the statistics and the parallel ...