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Evolving co-adapted subcomponents in assembler encoding

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Praczyk T.

International Journal of Applied Mathematics and Computer Science

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2007

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tom 17

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nr 4

549-563

EN

The paper presents a new Artificial Neural Network (ANN) encoding method called Assembler Encoding (AE). It assumes that the ANN is encoded in the form of a program (Assembler Encoding Program, AEP) of a linear organization and of a structure similar to the structure of a simple assembler program. The task of the AEP is to create a Connectivity Matrix (CM) which can be transformed into the ANN of any architecture. To create AEPs, and in consequence ANNs, genetic algorithms (GAs) are used. In addition to the outline of AE, the paper also presents a new AEP encoding method, i.e., the method used to represent the AEP in the form of a chromosome or a set of chromosomes. The proposed method assumes the evolution of individual components of AEPs, i.e., operations and data, in separate populations. To test the method, experiments in two areas were carried out, i.e., in optimization and in a predator-prey problem. In the first case, the task of AE was to create matrices which constituted a solution to the optimization problem. In the second case, AE was responsible for constructing neural controllers used to control artificial predators whose task was to capture a fast-moving prey.

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Controllability on infinite time horizon for first and second order functional differential inclusions in Banach spaces

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Benchohra M., Górniewicz L., Ntouyas S.

Discussiones Mathematicae, Differential Inclusions, Control and Optimization

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2001

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tom 21

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nr 2

261-282

EN

In this paper, we shall establish sufficient conditions for the controllability on semi-infinite intervals for first and second order functional differential inclusions in Banach spaces. We shall rely on a fixed point theorem due to Ma, which is an extension on locally convex topological spaces, of Schaefer's theorem. Moreover, by using the fixed point index arguments the implicit case is treated.

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Nauka i ewolucja w myśli Wacława Nałkowskiego

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Wierciński M.

Annales Universitatis Paedagogicae Cracoviensis Studia Geographica

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2011

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tom 2

57-64

EN

Wacław Nałkowski is certainly an outstanding figure for Polish geography. In many publications he has also been classified as positivist, anti-metaphysician, evolutionist, anticleric and socialist. Perhaps these designations are not always right, since in his works one can also find the ideas that do not quite match the labels conferred. His broad interests, diligence, criticism in selecting arguments, and the ability to see the essence of complex phenomena of different nature (both natural and cultural), yielded several interesting reflections contained in numerous articles and books. It should be emphasized that among his written thoughts and observations there are also those that resisted rapid changes in culture and environment that occurred in the century after his death, and can also be repeated today. Among them surely are his geographic and educational concepts. However, Nałkowski’s interests extend far beyond geography. The article focuses on interpretation of Nałkowski’s statements concerning the issues associated with the development of civilization, evolution, nature, as well as philosophy and sociology of science.

Ograniczanie wyników

1 Annales Universitatis Paedagogicae Cracoviensis Studia Geographica

1 Discussiones Mathematicae, Differential Inclusions, Control and Optimization

1 International Journal of Applied Mathematics and Computer Science

1 Benchohra M.

1 Górniewicz L.

1 Ntouyas S.

1 Praczyk T.

1 Wierciński M.

1 2011

1 2007

1 2001

Evolving co-adapted subcomponents in assembler encoding

Controllability on infinite time horizon for first and second order functional differential inclusions in Banach spaces

Nauka i ewolucja w myśli Wacława Nałkowskiego