Results 71 to 80 of about 8,198 (217)
Free Cumulants and Enumeration of Connected Partitions
, 2002 A combinatorial formula is derived which expresses free cumulants in terms of classical cumulants. As a corollary, we give a combinatorial interpretation of free cumulants of classical distributions, notably Gaussian and Poisson distributions. The latter
Franz Lehner, Lehner, Franz
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Symmetric cumulants and event-plane correlations [PDF]
, 2016 6 pagesInternational audienceThe ALICE Collaboration has recently measured the correlations between amplitudes of anisotropic flow in different Fourier harmonics, referred to as symmetric cumulants.
Giacalone, Giuliano +3 more
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Artificial Bias Induction in Fourth-Order Cumulants Based Automatic Modulation Classification Algorithm in AWGN and Multipath Propagation Channel [PDF]
RadioengineeringAutomatic modulation classification (AMC) represents a wide used technique for modulation format recognition of signals considered to be a priori unknown.
R. Bozovic, V. Orlic, G. Kekovic
doaj
Detecting Periodicity of a General Stationary Time Series via AR(2)‐Model Fitting
Journal of Time Series Analysis, EarlyView.ABSTRACT Estimating the periodicity of a stationary time series via fitting a second‐order stationary autoregressive (AR(2)) model has been initiated by the seminal paper of Yule (1927). We investigate properties of this procedure when applied to general stationary processes possessing a spectral density with a dominant peak at some unknown frequency ...
Jens‐Peter Kreiss +2 more
wiley +1 more source
Automatic Modulation Classification of Real Signals in AWGN Channel Based on Sixth-Order Cumulants [PDF]
Radioengineering, 2021 Automatic modulation classification (AMC) represents an important integral part of modern communication systems. While novel AMC algorithms based on complex neural network structures showed significant performance improvements, in practical applications ...
M. Simic, M. Stankovic, V. D. Orlic
doaj
Variance Ratio Tests for Panels With Cross‐Section Dependence
Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT This paper develops panel variance ratio statistics to examine serial dependence in time series with cross‐sectional dependence. We derive asymptotic properties for panels where the cross‐section dimension N$$ N $$ is fixed or grows with T. Using a factor structure to explain cross‐sectional dependence, we propose a common correlation effects ...
Seongman Moon, Carlos Velasco
wiley +1 more source
EXAFS Cumulants and Interatomic Potentials
, 1997 Tbmperature dependent EXAFS spectra of simple linear, octahedral and tetrahedral molecules have systematically been analyzed for the first and higher nearest neighbor (NN) shells including multiple-scattering contributions.
Y. Yonamoto +3 more
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Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT A popular approach to interactive effects panel data models is the common correlated effects (CCE) estimator of Pesaran (Estimation and inference in large heterogeneous panels with a multifactor error structure. Econometrica 74, 967–1012, 2006). The current paper proposes a modified version of this estimator that is useful in a number of cases
Yousef Kaddoura +2 more
wiley +1 more source
Quantifying Network Similarity using Graph Cumulants [PDF]
, 2023 How might one test the hypothesis that networks were sampled from the same distribution? Here, we compare two statistical tests that use subgraph counts to address this question.
Priebe, Carey E. +3 more
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Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2426-2439, November 2026.Purpose The dependence of the long‐time (tortuosity) limit of the extra‐cellular diffusivity on the intra‐cellular volume fraction is of fundamental importance for microstructure modeling. While such dependencies have been explored for the white matter, the tortuosity limit in gray matter is unknown due to complex cell composition and geometry. Here we
Hong‐Hsi Lee +6 more
wiley +1 more source