Results 41 to 50 of about 7,552,651 (318)
Primordial Non-Gaussianities [PDF]
Progress of Theoretical Physics Supplement, 2011 Invited talk at YKIS (Yukawa International Seminar) 2010: "Cosmology -The Next Generation-", 28 June - 2 July 2010, Kyoto ...
openaire +3 more sources
Self-tuning control of non-linear systems using gaussian process prior models [PDF]
, 2005 Gaussian Process prior models, as used in Bayesian non-parametric statistical models methodology are applied to implement a nonlinear adaptive control law. The expected value of a quadratic cost function is minimised, without ignoring the variance of the
Sbarbaro, D. +17 more
core +1 more source
Performance Evaluation of Cascade Non-Gaussian Systems Based on Image Processing Index [PDF]
Zhengzhou Daxue xuebao. Gongxue banTo accurately and quickly evaluate the performance of cascade systems and address the shortcomings of the translation invariance in entropy metrics, new performance indicators were proposed based on knowledge related to image quality evaluation in image ...
ZHANG Jinfang +4 more
doaj +1 more source
Non-Gaussian analysis of diffusion weighted imaging in head and neck at 3T: a pilot study in patients with nasopharyngeal carcinoma. [PDF]
PLoS ONE, 2014 PURPOSE:To technically investigate the non-Gaussian diffusion of head and neck diffusion weighted imaging (DWI) at 3 Tesla and compare advanced non-Gaussian diffusion models, including diffusion kurtosis imaging (DKI), stretched-exponential model (SEM ...
Jing Yuan +6 more
doaj +1 more source
Penalized likelihood estimation and iterative kalman smoothing for non-gaussian dynamic regression models [PDF]
, 1995 Dynamic regression or state space models provide a flexible framework for analyzing non-Gaussian time series and longitudinal data, covering for example models for discrete longitudinal observations.
Fahrmeir, Ludwig, Wagenpfeil, Stefan
core +1 more source
Non-gaussian shape recognition [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 37 pages, 7 figures, 5 tables.
Byun, Joyce, Bean, Rachel
openaire +2 more sources
Classical simulation of Gaussian quantum circuits with non-Gaussian input states
Physical Review Research, 2021 We consider Gaussian quantum circuits supplemented with non-Gaussian input states and derive sufficient conditions for efficient classical strong simulation of these circuits. In particular, we generalise the stellar representation of continuous-variable
Ulysse Chabaud +3 more
doaj +1 more source
Constraining running non-gaussianity [PDF]
Journal of Cosmology and Astroparticle Physics, 2009 The primordial non-Gaussian parameter fNL has been shown to be scale-dependent in several models of inflation with a variable speed of sound. Starting from a simple ansatz for a scale-dependent amplitude of the primordial curvature bispectrum for two common phenomenological models of primordial non-Gaussianity, we perform a Fisher matrix analysis of ...
Emiliano Sefusatti +4 more
openaire +2 more sources
Non-Gaussianity in DHOST inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Abstract DHOST inflation models where deviations from a pure de Sitter background are induced by an axion-like potential can lead to large non-Gaussianities. We investigate the nature of non-Gaussianities in these models and compare to the results given by the Planck experiment.
Brax, Philippe, Lazanu, Andrei
openaire +4 more sources
Nihon Kikai Gakkai ronbunshu, 2015 Equivalent non-Gaussian excitation method is developed to obtain the statistical moments up to 4th order of the response of non-Gaussian randomly excited systems. The non-Gaussian excitation is prescribed by the probability density function and the power
Takahiro TSUCHIDA, Koji KIMURA
doaj +1 more source