نتایج جستجو برای: probability of crossover

تعداد نتایج: 21173715  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1387

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

2007
Wang Lei Shen Tingzhi

Key words-Genetic Algorithm; Adaptive Genetic Algorithm; crossover probability; mutation probability; image segmentation

2005
Fan Li Qihe Liu Fan Min Guowei Yang

In genetic algorithms, commonly used crossover operators such as one-point, two-point and uniform crossover operator are likely to destroy the information obtained in the evolution because of their random choices of crossover points. To overcome this defect, a new adaptive crossover operator based on the Rough Set theory is proposed in this paper. By using this specialized crossover operator, u...

2002
Peter A.N. Bosman Dirk Thierens

In this paper, we discuss multivariately factorized probability distributions for permutation random variables and a greedy approach to estimating these probability distributions from data. We use the representation known as random keys for permutations. The major benefit of using random keys is that no infeasible solution can be generated if crossover is applied in an evolutionary algorithm (E...

Journal: :Optimization Letters 2013
Xiu Qin Deng Yong Da Li

In this article, a novel hybrid genetic algorithm is proposed. The selection operator, crossover operator andmutation operator of the genetic algorithm have effectively been improved according to features of Sudoku puzzles. The improved selection operator has impaired the similarity of the selected chromosome and optimal chromosome in the current population such that the chromosome with more ab...

2000
Seán Coffey Houshou Chen

The problem of decoding a binary linear code used over a binary symmetric channel so as to minimize bit error probability, rather than codeword error probability, is studied. In general, there are substantial differences with the maximum likelihood case. The optimal decoding rule depends on the crossover probability of the channel, the bit error probability depends on the generator matrix used,...

2013
Farhad Nadi Ahamad Tajudin Khader

Exploration of the search space occurs at the cost of destructing existing good solutions. This cost will grow as the search progresses. The parametric uniform crossover is a general form of the uniform crossover operator. Using this operator, it would be possible to control the swapping probability of each locus. An adaptive method proposed that control the value of the exchange probability of...

2013
Kohei Arai

Fisher distance based Genetic Algorithm: GA clustering method which takes into account overlapped space among probability density functions of clusters in feature space is proposed. Through experiments with simulation data of 2D and 3D feature space generated by random number generator, it is found that clustering performance depends on overlapped space among probability density function of clu...

Journal: :Adv. Operations Research 2012
Mohammad Jalali Varnamkhasti Lai Soon Lee Mohd Rizam Abu Bakar Wah June Leong

The performance of a genetic algorithm is dependent on the genetic operators, in general, and on the type of crossover operator, in particular. The population diversity is usually used as the performance measure for the premature convergence. In this paper, a fuzzy genetic algorithm is proposed for solving binary encoded combinatorial optimization problems. A new crossover operator and probabil...

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