18th International Conference on Electronics, Communications and Computers (Conielecomp 2008) 2008
DOI: 10.1109/conielecomp.2008.14
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R/S Statistic: Accuracy and Implementations

Abstract: The paper studies the behaviour of three different R/S Statistic algorithms for Hurst-index estimation in self-similar and long-range dependent discrete time series. The accuracy of the algorithms under convergence and aggregation in time is obtained and compared. The results show that static blocks implementations of the R/S Statistic present better accuracy than those based on a dynamic blocks implementation. The accuracy is obtained with the use of synthetic fGn and FARIMA(0, d, 0) self-similar traces. The … Show more

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Cited by 3 publications
(6 citation statements)
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“…Different to other methods, such as the rescale range (R/S) analysis [10][11], it can be utilized to detect the longrange correlations of a non-stationary series. For a series y i , i=1,2,…,N, the calculation steps of the DFA are: 1) calculating (6-7) to eliminate the trend item of that series above.…”
Section: Detrend Fluctuation Analysismentioning
confidence: 99%
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“…Different to other methods, such as the rescale range (R/S) analysis [10][11], it can be utilized to detect the longrange correlations of a non-stationary series. For a series y i , i=1,2,…,N, the calculation steps of the DFA are: 1) calculating (6-7) to eliminate the trend item of that series above.…”
Section: Detrend Fluctuation Analysismentioning
confidence: 99%
“…The order of the p v (i) is k. 4) Calculating the 2N n segmentation variance by (9). 5) Estimating the DFA fluctuation function by (10).…”
Section: Detrend Fluctuation Analysismentioning
confidence: 99%
“…Esse exemplo ilustra o elevado risco político que a inadequada prestação de serviços públicos cruciais acarreta para o governo, cujos índices de popularidade diminuíram significativamente durante a crise em exame. Pacheco (2003) analisa a relação das agências com os três poderes e argumenta que o Executivo demonstrou inconformismo com a perda de poder para os novos órgãos. Todos os exemplos anteriormente citados se referem a esse inconformismo e apontam indícios de relação conflituosa entre o Poder Executivo e esses novos organismos.…”
Section: Vulnerabilidade Do Modelo Regulatóriounclassified
“…Por outro lado, ainda há muitos problemas de entendimento do modelo, desde a filosofia de concepção até os papéis dos diversos atores. O fator desconhecimento se fez presente até nos primeiros momentos do governo Lula, quando o próprio presidente caracterizou a atuação das agências como uma terceirização do Estado, e o ministro das Telecomunicações Miro Teixeira tentou assumir a negociação direta com as empresas para obter reajustes inferiores (Pacheco, 2003).…”
Section: Vulnerabilidade Do Modelo Regulatóriounclassified
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