Results 41 to 50 of about 366,408 (290)
A nonlinear drift which leads to $\kappa$-generalized distributions
, 2009 We consider a system described by a Fokker-Planck equation with a new type of momentum-dependent drift coefficient which asymptotically decreases as $-1/p$ for a large momentum $p$.
A.M. Scarfone +16 more
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State Estimation Based on Generalized Gaussian Distributions
Metrology and Measurement Systems, 2013 Abstract This paper presents a novel strategy of particle filtering for state estimation based on Generalized Gaussian distributions (GGDs). The proposed strategy is implemented with the Gaussian particle pilter (GPF), which has been proved to be a powerful approach for state estimation of nonlinear systems with high accuracy and low computational
Xifeng Li, Yongle Xie
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Multivariate Generalized Gaussian Distribution: Convexity and Graphical Models [PDF]
IEEE Transactions on Signal Processing, 2013 We consider covariance estimation in the multivariate generalized Gaussian distribution (MGGD) and elliptically symmetric (ES) distribution. The maximum likelihood optimization associated with this problem is non-convex, yet it has been proved that its global solution can be often computed via simple fixed point iterations.
Zhang, Teng +2 more
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IEEE AccessSpectrum sensing in cognitive radio presents a challenge in overcoming the spectrum scarcity caused by the rapid growth of wireless devices. Deep learning (DL) and machine learning (ML) are trending approaches to enhance the spectrum sensing performance.
Md. Tofail Ahmed +3 more
doaj +1 more source
Gong-kuang zidonghua, 2016 For poor universal applicability of traditional coal-rock recognition methods whose application was limited by mining techniques and coal seam conditions, a coal-rock recognition method based on statistical modeling of steerable pyramidal decomposition ...
SUN Jiping, CHEN Bang
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Bridging the ARCH model for finance and nonextensive entropy
, 2004 Engle's ARCH algorithm is a generator of stochastic time series for financial returns (and similar quantities) characterized by a time-dependent variance.
+10 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu +11 more
wiley +1 more source
Statistics of sums of correlated variables described by a matrix product ansatz
, 2013 We determine the asymptotic distribution of the sum of correlated variables described by a matrix product ansatz with finite matrices, considering variables with finite variances.
Abry, Patrice +2 more
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Bayesian Estimation Improves Prediction of Outcomes After Epilepsy Surgery
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT We estimated the statistical power of studies predicting seizure freedom after epilepsy surgery. We extracted data from a Cochrane meta‐analysis. The median power across all studies was 14%. Studies with a median sample size or less (n ≤ 56) and a statistically significant result exaggerated the true effect size by a factor of 5.4, while the ...
Adam S. Dickey +4 more
wiley +1 more source
Use of the geometric mean as a statistic for the scale of the coupled Gaussian distributions [PDF]
, 2018 The geometric mean is shown to be an appropriate statistic for the scale of a heavy-tailed coupled Gaussian distribution or equivalently the Student's t distribution.
Kon, Mark A. +2 more
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