Density Classification Task
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Breast density pattern characterization by histogram features and texture descriptors
Abstract Introduction Breast cancer is the first leading cause of death for women in Brazil as well as in most countries in the world. Due to the relation between the breast density and the risk of breast cancer, in medical practice, the breast density classification is merely visual and dependent on professional experience, making this task very subjective
Res. Biomed. Eng.. Publicado em: 06/04/2017
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2. Representação ternária em algoritmos evolutivos para a obtenção de autômatos celulares binários
A busca por regras de autômatos celulares que efetuem corretamente uma determinada tarefa pode ser impossível de ser efetuada manualmente, dado o enorme tamanho dos espaços de busca usualmente envolvidos. Uma forma para conseguir encontrar boas regras para a execução do problema em questão tem sido a utilização de algoritmos genéticos(AGs) para evol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/09/2011
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3. Representação ternária em algoritmos evolutivos para a obtenção de autômatos celulares binários
The search for cellular automata (CAs) rules capable of executing a determined task can be impossible to be achieve manually, given the huge size of the search space usually involved. A method for being able to find rules capable of executing the task at hand has been the usage of genetic algorithms (GAs) to evolve an initially random population, until the d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2011
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4. Genetic Algorithm for the solution of majority problem / Algoritmo genÃtico para a soluÃÃo do problema da maioria.
Many natural and social systems exhibit globally organized behavior without the aid of a centralized control. Examples of such decentralized systems include conventions and norms, social learning in animals and humans, as well as fads, rumors and revolts. Examples are also abundant in biology: the evasive behavior of animals in large groups, such as fish and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
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5. Autômatos celulares não-uniformes, com conexões não-locais, na classificação de densidade
Cellular automata are discrete dynamical systems composed of simple, locally connected structures (the cells), general in terms of their computational power, and that display complex patterns of behaviour. The purpose of this work was to expand previous studies by Zanon (2006), on non-uniform, one-dimensional cellular automata with nonlocal neighbourhood, in
Publicado em: 2008
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6. Efficient system-wide coordination in noisy environments
Many natural and social systems display global organization and coordination without centralized control. The origin of this global coordination is a topic of great current interest. Here we investigate a density-classification task as a model system for coordination and information processing in decentralized systems. We show that sophisticated strategies,
National Academy of Sciences.