Buscar
Mostrando ítems 1-10 de 862
On a continuous spectral algorithm for simulating non-stationary Gaussian random fields
(Springer New York LLC, 2018)
This paper presents an algorithm for simulating Gaussian random fields with zero mean and non-stationary covariance functions. The simulated field is obtained as a weighted sum of cosine waves with random frequencies and ...
NONSTATIONARY MIXING AND THE UNIQUE ERGODICITY OF ADIC TRANSFORMATIONS
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2009)
We define topological and measure-theoretic mixing for nonstationary dynamical systems and prove that for a nonstationary subshift of finite type, topological mixing implies the minimality of any adic transformation defined ...
Non-stationary Gaussian ARFIMA processes: Estimation and applicationNon-stationary Gaussian ARFIMA processes: Estimation and application
(Sociedade Brasileira de Econometria, 2002)
Nonstationary discrete-time deterministic and stochastic control systems with infinite horizon
(International Journal of Control, 2010-09)
Nonstationary regression with support vector machines
(Springer, 2014-10-07)
In this work, we introduce a method for data analysis in nonstationary environments: time-adaptive support vector regression (TA-SVR). The proposed approach extends a previous development that was limited to classification ...
Extracting stationary segments from non-stationary synthetic and cardiac signals
(SPIE, 2014-10-14)
Physiological signals are commonly the result of complex interactions between systems and organs, these interactions lead to signals that exhibit a non-stationary behaviour. For cardiac signals, non-stationary heart rate ...
Testing for linear and nonlinear Gaussian processes in nonstationary time series
(World ScientificSingapore, 2015)
Surrogate data methods have been widely applied to produce synthetic data, while maintaining the same statistical properties as the original. By using such methods, one can analyze certain properties of time series. In ...