Towards an Adaptive Multimeme Algorithm for Parameter Optimisation Suiting the Engineers' Needs
نویسنده
چکیده
Important factors for the easy usage of an Evolutionary Algorithm (EA) are numbers of fitness calculations as low as possible, its robustness, and the reduction of its strategy parameters as far as possible. Multimeme Algorithms (MMA) are good candidates for the first two properties. In this paper a cost-benefit-based approach shall be introduced for the adaptive control of both meme selection and the ratio between local and global search. The latter is achieved by adaptively adjusting the intensity of the search of the memes and the frequency of their usage. It will be shown in which way the proposed kind of adaptation fills the gap previous work leaves. Detailed experiments in the field of continuous parameter optimisation demonstrate the superiority of the adaptive MMA over the simple MA and the pure EA.
منابع مشابه
A self-adaptive Multimeme Memetic Algorithm co-evolving utility scores to control genetic operators and their parameter settings
Memetic algorithms are a class of well-studied metaheuristics which combine evolutionary algorithms and local search techniques. A meme represents contagious piece of information in an adaptive information sharing system. The canonical memetic algorithm uses a fixed meme, denoting a hill climbing operator, to improve each solution in a population during the evolutionary search process. Given gl...
متن کاملAn Adaptive Approach to Increase Accuracy of Forward Algorithm for Solving Evaluation Problems on Unstable Statistical Data Set
Nowadays, Hidden Markov models are extensively utilized for modeling stochastic processes. These models help researchers establish and implement the desired theoretical foundations using Markov algorithms such as Forward one. however, Using Stability hypothesis and the mean statistic for determining the values of Markov functions on unstable statistical data set has led to a significant reducti...
متن کاملEnglish Needs Analysis in the Workplace: The Case of Engineers in Esfahan Steel Company
Nowadays, English language plays an important role in the job of engineers and it is necessary to become familiar with engineers’ objectives, attitudes, and expectations in order to have an appropriate course design. The purpose of this study was to explore the needs analysis of English learning of engineers in Esfahan Steel Company (ESCO). This study aimed at investigating the required level o...
متن کاملEnglish Needs Analysis in the Workplace: The Case of Engineers in Esfahan Steel Company
Nowadays, English language plays an important role in the job of engineers and it is necessary to become familiar with engineers’ objectives, attitudes, and expectations in order to have an appropriate course design. The purpose of this study was to explore the needs analysis of English learning of engineers in Esfahan Steel Company (ESCO). This study aimed at investigating the required level o...
متن کاملEquidistribution grids for two-parameter convection–diffusion boundary-value problems
In this article, we propose an adaptive grid based on mesh equidistribution principle for two-parameter convection-diffusion boundary value problems with continuous and discontinuous data. A numerical algorithm based on an upwind finite difference operator and an appropriate adaptive grid is constructed. Truncation errors are derived for both continuous and discontinuous problems. Parameter uni...
متن کامل