Results 221 to 230 of about 1,093,370 (267)

Genetic Selection for Mastitis Resistance

Veterinary Clinics of North America: Food Animal Practice, 2018
Mastitis is a prevalent and costly disease on dairy farms. Improved management and hygiene can reduce the risk of infection by contagious or environmental pathogens, and genetic selection can confer permanent improvement in mastitis resistance. National veterinary recording systems in the Nordic countries have allowed direct selection for sire families
Kent A, Weigel, George E, Shook
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Sexual Selection for Genetic Algorithms

Artificial Intelligence Review, 2003
Genetic Algorithms (GA) have been widely used in operations research and optimization since first proposed. A typical GA comprises three stages, the encoding, the selection and the recombination stages. In this work, we focus our attention on the selection stage of GA, and review a few commonly employed selection schemes and their associated scaling ...
Kai Song Goh, Andrew Lim 0001, Brian Rodrigues   +2 more
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Model selection in genetic programming

Proceedings of the 12th annual conference on Genetic and evolutionary computation, 2010
In this paper we discuss the problem of model selection in Genetic Programming. We present empirical comparisons between classical statistical methods (AIC, BIC) adapted to Genetic Programming and the Structural Risk Minimization method (SRM) based on Vapnik-Chervonenkis theory (VC), for symbolic regression problems with added noise.
Cruz E. Borges, César Luis Alonso, José L. Montaña   +2 more
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On the effect of selection in genetic algorithms

Random Structures and Algorithms, 2001
Summary: To study the effect of selection with respect to mutation and mating in genetic algorithms, we consider two simplified examples in the infinite population limit. Both algorithms are modeled as measure valued dynamical systems and are designed to maximize a linear fitness on the half line. Thus, they both trivially converge to infinity.
Christian Mazza, Didier Piau
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Genetic interactions drive selection

Science, 2017
Evolutionary Genetics Most individuals carry at least some potentially deleterious variants in their genome. But the effects of these mutations on individuals are not well understood. Sohail et al. examined loss-of-function (LOF) mutations in the genomes of humans and flies.
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The driven genetic selection mechanism

SMC 2000 Conference Proceedings. 2000 IEEE International Conference on Systems, Man and Cybernetics. 'Cybernetics Evolving to Systems, Humans, Organizations, and their Complex Interactions' (Cat. No.00CH37166), 2002
This paper defines a new distance measurement for binary strings called the extended Hamming distance. Using this measurement we prove that the binary decoding method in the simple genetic algorithm satisfies the demand of certain continuity. Based on this continuity, we propose a new selection mechanism called the driven selection mechanism.
Yongchuan Tang, Tianmin Huang
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Genetic selection for extensive conditions

Applied Animal Behaviour Science, 1996
Abstract Humans have selected animals which are more suited for food production or other purposes, since the process of domestication of livestock began, whether this selection was done knowingly or unknowingly. The deliberate selection of improved breeds and strains has been a particularly important feature of agriculture in the last couple of ...
Simm, G, Conington, JE, Bishop, SC, Dwyer, CM, Pattinson, SE   +4 more
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Genetic engineering: Unnatural selection

Nature, 2003
Evolving techniques for redesigning organisms have enormous potential but they must be matched with equally sophisticated methods for evaluating their benefits and risks.
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Population genetics and natural selection

Genetica, 1957
Genotypic differences are the raw material on which selection acts but not all kinds of genotypic differences are of equal importance in this connection. FISHER (1930) showed that whether or not mating occurs at random, the population genotypic variance for any quantitative character may be analyzed into a number of components and that one of these ...
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Genetic Selection and Equilibrium Stability

Acta geneticae medicae et gemellologiae, 1977
The problem of the equilibrium stability of a phenotypic selection process, with a single pair of autosomal alleles, has been numerically studied, on the basis of previously established reproduction differential equations.
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