Results 31 to 40 of about 44,722 (216)
Cautious Gait during Navigational Tasks in People with Hemiparesis: An Observational Study
SensorsLocomotor and balance disorders are major limitations for subjects with hemiparesis. The Timed Up and Go (TUG) test is a complex navigational task involving oriented walking and obstacle circumvention. We hypothesized that subjects with hemiparesis adopt
Albane Le Roy +4 more
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A Wavelet‐Based Test for Stationarity [PDF]
Journal of Time Series Analysis, 2000 We develop a test for stationarity of a time series against the alternative of a time‐varying covariance structure. Using localized versions of the periodogram, we obtain empirical versions of a reasonable notion of a time‐varying spectral density. Coefficients with respect to a Haar wavelet series expansion of such a time‐varying periodogram are an ...
Sachs, Rainer von, Neumann, Michael H.
openaire +2 more sources
Extinction and quasi-stationarity in the stochastic logistic SIS model [PDF]
, 2011 This volume presents explicit approximations of the quasi-stationary distribution and of the expected time to extinction from the state one and from quasi-stationarity for the stochastic logistic SIS model.
Nåsell, Ingemar, +2 more
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Extreme 1-day rainfall distributions: Analysing change in the Western Cape
South African Journal of Science, 2017 Severe floods in the Western Cape Province of South Africa have caused significant damage to property and infrastructure over the past decade (2003–2014).
Jan H. de Waal +2 more
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On a Class of Z+-Valued Autoregressive Moving Average (ARMA) Processes
Revstat Statistical Journal, 2008 A convolution semigroup of probability generating functions and its related operator ⊙F are used to construct a class of stationary Z+-valued autoregressive moving average (ARMA) processes.
Emad-Eldin A. A. Aly , Nadjib Bouzar
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On a Class of Time Series Model with Double Lindley Distribution as Marginals
Statistica, 2022 An autoregressive process of order one with double Lindley distribution as marginal is introduced. A mixture distribution is obtained for the innovation process. Analytical properties of the process are discussed.
Kunnathully Unnikrishnan Nitha +1 more
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Fault Detection in Industrial Equipment through Analysis of Time Series Stationarity
AlgorithmsPredictive maintenance has gained importance due to industrialization. Harnessing advanced technologies like sensors and data analytics enables proactive interventions, preventing unplanned downtime, reducing costs, and enhancing workplace safety.
Dinis Falcão +4 more
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Water Resources Research, 2019 In this study, we analyze the nonstationarity in meteorological droughts at the multidecadal scale in different parts of the contiguous United States during 1901–2017.
Tushar Apurv, Ximing Cai
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Stationarity and quasi-stationarity for birth-death processes [PDF]
SCIENTIA SINICA Mathematica, 2019 Professor Zikun Wang has made pioneering research on the construction theory of birth-death processes, which now has many applications.We review the quasi-stationary distribution for birth-death processes with four types of infinity boundary. In the cases of exit/regular boundaries,we extend the quasi-stationary distributions to the minimal processes ...
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Overview of some considerations related to non-stationarity [PDF]
Presented to the International Stock Assessment Workshop, 27 November – 1 December 2023, University of Cape Town: 20 slides, titled: 'Overview of some considerations related to non-stationarity.'
Andre Punt (10691178)
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