Nonextensive Entropy
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Ferramentas computacionais na análise da variabilidade da frequência cardíaca através do paradigma não extensivo no estudo de cardiopatias / Computational tools for heart rate variability analysis through non-extensive paradigm in heart diseases.
Este trabalho teve por objetivo construir e avaliar ferramentas de quantificação e análise da variabilidade da freqüência cardíaca segundo o paradigma não extensivo de Tsallis na modelagem do sistema de regulação da freqüência cardíaca, e na discriminação de situação de normalidade e cardiopatias e apoio ao diagnóstico de cardiopatias. O sis
Publicado em: 2010
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2. Generalized entropy indices to measure α- and β-diversities of macrophytes
A family of entropy indices constructed in the framework of Tsallis entropy formalism is used to investigate ecological diversity. It represents a new perspective in ecology because a simple equation can incorporate all aspects of α-diversity, from richness to dominance and can be also related to a measure of species rarity. In addition, a generalized Kullb
Brazilian Journal of Physics. Publicado em: 2009-08
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3. Introducing the q-Theil index
Starting from the idea of Tsallis on non-extensive statistical mechanics and the q-entropy notion, we recall the Theil index Th and transform it into the Th q index. Both indices can be used to map onto themselves any time series in a non linear way. We develop an application of the Th q to the GDP evolution of 20 rich countries in the time interval [1950 -2
Brazilian Journal of Physics. Publicado em: 2009-08
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4. Nonadditive entropy and nonextensive statistical mechanics -an overview after 20 years
Statistical mechanics constitutes one of the pillars of contemporary physics. Recognized as such - together with mechanics (classical, quantum, relativistic), electromagnetism and thermodynamics -, it is one of the mandatory theories studied at virtually all the intermediate-and advanced-level courses of physics around the world. As it normally happens with
Brazilian Journal of Physics. Publicado em: 2009-08
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5. A unified regularization theory: the maximum non-extensive entropy principle
Tsallis' non-extensive entropy is used as a regularization operator. The parameter ''q'' (non-extensivity parameter) has a central role in the Tsallis' thermostatiscs formalism. Here, several values of q are investigated in inverse problems, using q < 1 and q > 1. Two standard regularization techniques are recovered for special q-values: (i) q = 2 is the wel
Computational & Applied Mathematics. Publicado em: 2006
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6. Um estudo sobre características do subdomínio inercial da turbulência desenvolvida em escoamento acima e dentro da copa da Floresta Amazônica de terra firme e acima do Pantanal Matogrossense / An study about statistical characteristics of inertial subrange of developed turbulence in flows above and below of Amazonia Forest canopy and above Pantanal Matogrossense
In this work turbulent data measured in two micrometeorologicaly different regions, sampled at 60 Hz, were used. The first data set was obtained at a tower in the Rebio-Jaru Reserve, during an intensive campaign of the Large Scale Biosphere Atmosphere Experiment in Amazonia - (LBA) in 1999. The second set was obtained in the Pantanal Matogrossense, Interdisc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2002