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Leaders emergence in artificial populations: the role of networks
Quality & Quantity, 2013Social networks can be viewed as graphs in their basic form, but many networks of interest include positive and negative affect relations among nodes. The structural balance theory originally developed by Heider suggests how nodes may locally modify their relationships to maintain a sort of balance within sets of nodes. We analyze a model of leadership
DAL FORNO, ARIANNA, Merlone U.
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Artificial selection in populations by overlapping generations
Advances in Applied Probability, 1975In populations of species such as cattle and sheep which are being selected for commercially important quantitative traits like milk yield and growth rate, the breeder cannot avoid overlapping generations since the female reproductive rate is so low. There is a classical theory for predicting the rate of response to selection in continuing programmes ...
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Artificial recombination in forensic mtDNA population databases
International Journal of Legal Medicine, 2004Artificial recombination of two or more mitochondrial DNA fragments from different samples would constitute a serious cause of error in forensic DNA typing, and yet one can demonstrate that such events have happened in the preparation of several published mtDNA databases.
Bandelt, Hans-Jürgen +2 more
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The Extermination of Animal Populations by Artificial Predation and the Estimation of Populations
The Journal of Animal Ecology, 1953This paper falls into two parts, as the itle indicates. They are linked together by the circumstance that-both are referred to the same body of data (Table 1). The term 'Artificial Predation' is he e adopted to include all cases where a population of animals is directly attacked by man, by shooting, trapping, hand collection or other similar methods ...
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Population Structure and Artificial Evolution
2006We investigate the effect that population structure has upon the course of artificial evolution. We represent an arbitrary population structure by embedding a population of individuals in a graph. Each individual resides at a vertex of the graph and can only choose a mating partner from among its neighbors in the graph.
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Heredity, 2000
Polyploidization has long been recognized as an important force in the diversification of plants. Theoretical models predict that polyploids may be expected to exhibit higher rates of self-fertilization than do closely related diploid species. Wild populations of the neopolyploid Tragopogon mirus (4n) exhibited slightly higher rates of outcrossing than
L M, Cook, P S, Soltis
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Polyploidization has long been recognized as an important force in the diversification of plants. Theoretical models predict that polyploids may be expected to exhibit higher rates of self-fertilization than do closely related diploid species. Wild populations of the neopolyploid Tragopogon mirus (4n) exhibited slightly higher rates of outcrossing than
L M, Cook, P S, Soltis
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A population-based artificial immune system for numerical optimization
Neurocomputing, 2008Many immue-inspired algorithms are based on the abstractions of one or several immunology theories, such as clonal selection, negative selection, positive selection, rather than the whole process of immune response to solve computational problems. In order to build a general computational framework by simulating immune response process, this paper ...
Maoguo Gong +2 more
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Population representation of artificial neural network
2014 14th International Workshop on Cellular Nanoscale Networks and their Applications (CNNA), 2014Neural representation is briefly reviewed and its essential features, which are required to be implemented in artificial neural networks, are addressed. They are such as population representation and correlation between neighboring neurons. These aspects play an important role in conveying information, compensating the unreliability of individual ...
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The conflict between natural and artificial selection in finite populations
Theoretical and Applied Genetics, 1980A single locus model of the interaction between natural selection and artificial selection for a quantitative character in a finite population, assuming heterozygote superiority in natural fitness but additive action on the character, has been studied using transition probability matrices.If natural selection is strong enough to create a selection ...
F W, Nicholas, A, Robertson
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Analysis of Population Size in Artificial Bee Colony Algorithm
2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 2018Artificial bee colony (ABC) algorithm has attracted growing interest for the continuous global optimization problems (CGOPs), where numerous algorithmic extensions have been developed. However, existing studies generally employ identical population size to perform the comparison among different ABC variants, regardless a fact that the generally ...
Xianneng Li +6 more
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