نتایج جستجو برای: fitness genetic algorithm operation research

تعداد نتایج: 2773685  

2014
Nisha Devi Vishal Walia

The key principle of this paper is to improve the whole time and to reduce the bit error rate using GA algorithm. In this research, objective and fitness function are applied in genetic algorithm to calculate the average energy of the arrangement and to make sure which block has lesser energy than average energy. Afterwards that block has been added in the result of the objective function and t...

Journal: :Genetics 1996
S F Elena F González-Candelas I S Novella E A Duarte D K Clarke E Domingo J J Holland A Moya

The evolution of fitness in experimental clonal populations of vesicular stomatitis virus (VSV) has been compared under different genetic (fitness of initial clone) and demographic (population dynamics) regimes. In spite of the high genetic heterogeneity among replicates within experiments, there is a clear effect of population dynamics on the evolution of fitness. Those populations that went t...

An efficient formulation for the robust shape optimization of aerodynamic objects is introduced in this paper. The formulation has three essential features. First, an Euler solver based on a second-order Godunov scheme is used for the flow calculations. Second, a genetic algorithm with binary number encoding is implemented for the optimization procedure. The third ingredient of the procedure is...

Journal: :تحقیقات آب و خاک ایران 0
سولماز رسولزاده غریبدوستی ارشناسی ارشد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران امید بزرگ حداد استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

pumps are among the early instruments invented by humans to be taken advantage of in the use of water utilities. design and operation problem of pumping stations is a type of mixed integer non linear programming, in which gradient based optimization methods are not efficient for solving complex problems of this type. in this regard, such evolutionary optimization algorithms as genetic algorithm...

Journal: :TEM Journal 2023

Establishing suitable groups of students is one the factors considered as a key to success in group collaboration. In addition, searching for optimal solution problem can be more complicated and becomes an exhaustive search, while taking into consideration equality homogeneity. However, few approaches focus on forming based analysis variance (ANOVA) ensure that all generated have been drawn fro...

A sensor network is made up of a large number of sensors with limited energy. Sensors collect environmental data then send them to the sink. Energy efficiency and thereby increasing the lifetime of sensor networks is important. Direct transfer of the data from each node to the central station will increase energy consumption. Previous research has shown that the organization of nodes in cluster...

Journal: :Transactions of the Society of Instrument and Control Engineers 2001

2004
Andrea Malossini Enrico Blanzieri Tommaso Calarco ANDREA MALOSSINI ENRICO BLANZIERI TOMMASO CALARCO

The complexity of the selection procedure of a genetic algorithm that requires reordering, if we restrict the class of the possible fitness functions to non–local or time–dependent fitness functions, is O (N log N) where N is the size of the population. Quantum Genetic Algorithm (QGA) exploits the power of quantum computation in order to speed up genetic procedures. In QGA the classical fitness...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2019

2000
Richard J. Povinelli

A comparison of three methods for saving previously calculated fitness values across generations of a genetic algorithm is made. These methods lead to significant computational performance improvements. For real world problems, the computational effort spent on evaluating the fitness function far exceeds that of the genetic operators. As the population evolves, diversity usually diminishes. Thi...

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