Results 41 to 50 of about 366,433 (291)

A coal-rock recognition method based on statistical modeling ofsteerable pyramidal decomposition coefficients

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
doaj   +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, Angeletti, Florian, Bertin, Eric   +2 more
core   +1 more source

A simple probabilistic construction yielding generalized entropies and divergences, escort distributions and q-Gaussians [PDF]

, 2012
We give a simple probabilistic description of a transition between two states which leads to a generalized escort distribution. When the parameter of the distribution varies, it defines a parametric curve that we call an escort-path.
Abe, Abe, Amari, Barankin, Beck, Bercher, Bercher, Bercher, Burbea, Campbell, Chernoff, Chhabra, Cover, Crooks, Ellis, Frieden, Frieden, Hammad, J.-F. Bercher, Kawai, Lutz, Nulton, Ohara, Ohara, Parrondo, Pennini, Pennini, Pennini, Pino, Rao, Rényi, Schwämmle, Shenfeld, Tsallis, Tsallis, Weinhold   +35 more
core   +5 more sources

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

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, Qi Wang, Suhui Kuang, Dezhi Cao, Ping Ding, Shaohui Zhang, Haihua Wei, Zhirong Wei, Jinshan Xu, Xinyu Huang, Bing Liu, Shuli Liang   +11 more
wiley   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Associations of Rheumatoid Arthritis Disease Activity with Frailty Over Five Years of Follow‐up

Arthritis Care &Research, Accepted Article.
Objective To evaluate whether rheumatoid arthritis (RA) disease activity is associated with frailty both in cross‐section and longitudinally. Methods Participants within the Veterans Affairs Rheumatoid Arthritis registry enrolled from 2003 to 2022 were included. The exposure was RA disease activity measured by Disease Activity Score in 28‐joints (DAS28)
Courtney N. Loecker, Yangyuna Yang, Punyasha Roul, Aaron Baraff, Myra S. Schmaderer, Lani Zimmerman, Kaleb Michaud, Namrata Singh, Grant W. Cannon, Gary Kunkel, Ted R. Mikuls, Ariela R. Orkaby, Joshua F. Baker, Bryant R. England, Katherine D. Wysham   +14 more
wiley   +1 more source

Velocity Distribution of Topological Defects in Phase-Ordering Systems

, 1997
The distribution of interface (domain-wall) velocities ${\bf v}$ in a phase-ordering system is considered. Heuristic scaling arguments based on the disappearance of small domains lead to a power-law tail, $P_v(v) \sim v^{-p}$ for large v, in the ...
A. D. Rutenberg, A. J. Bray, A. J. Bray, A. J. Bray, A. J. Bray, A. J. Bray, B. Yurke, C. Wagner, C. Yeung, F. Liu, G. F. Mazenko, G. F. Mazenko, I. M. Lifshitz, M. Mondello, M. Mondello, T. Ohta, Y. Oono   +16 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Alternative Thresholding Technique for Image Segmentation Based on Cuckoo Search and Generalized Gaussians

Mathematics, 2021
Object segmentation is a widely studied topic in digital image processing, as to it can be used for countless applications in several fields. This process is traditionally achieved by computing an optimal threshold from the image intensity histogram ...
Jorge Munoz-Minjares, Osbaldo Vite-Chavez, Jorge Flores-Troncoso, Jorge M. Cruz-Duarte   +3 more
doaj   +1 more source

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.
, , Abe S., Bouchaud J.-P., Embrechts P., Gell-Mann M., Mantegna R. N., Osorio R., Swinney H., Weiss A. A., White H.   +10 more
core   +1 more source