Results 31 to 40 of about 551,036 (333)
Precise asymptotics of ruin probabilities for a class of multivariate heavy-tailed distributions [PDF]
Statistics & Probability Letters Volume 166, November 2020, 108871, 2020 This article studies asymptotic approximations of ruin probabilities of multivariate random walks with heavy-tailed increments. Under our assumptions, the distributions of the increments are closely connected to multivariate subexponentiality and admit dependence between components.
arxiv +1 more source
MERCURY IN THE SEDIMENT OF PELOTAS RIVER BASIN, BRAZIL [PDF]
Engenharia Agrícola, 2018 Many studies have determined the concentration of trace elements in river sediments in Brazil. Notwithstanding, mercury assessments are scarce, especially because of exclusive extraction techniques and expensive analysis techniques.
Marcelo B. Remor +4 more
doaj +1 more source
Plants, 2022 Growing of ornamental flowering plants represents an important sector of horticulture. Viola × wittrockiana (garden pansy) is used in garden beds and borders due to their colorful blooming, which occurs in early spring and late autumn. Nowadays, breeders
Endre Kentelky +3 more
doaj +1 more source
Multivariate Nonparametric Volatility Density Estimation [PDF]
Journal of Multivariate Analysis 102, 683-697 (2011), 2009 We consider a continuous-time stochastic volatility model. The model contains a stationary volatility process, the multivariate density of the finite dimensional distributions of which we aim to estimate. We assume that we observe the process at discrete instants in time. The sampling times will be equidistant with vanishing distance.
arxiv +1 more source
Enhancing the Teaching of Statistics by Use of the Full GLM
Journal of Methods and Measurement in the Social Sciences, 2015 Increased elegance in math and science is by the use of more comprehensive, easier to understand, and easier to use models. Increasing elegance allows courses to cover more material in greater depth.
Richard L Gorsuch
doaj +1 more source
Evaluation of Facility Management by Multivariate Statistics – Factor Analysis
Selected Scientific Papers: Journal of Civil Engineering, 2013 Facility management is evolving, there is no exact than other sciences, although its development is fast forward. The knowledge and practical skills in facility management is not replaced, on the contrary, they complement each other.
Singovszki Miloš, Vranayová Zuzana
doaj +1 more source
Química Nova, 2007 Concentrations of Fe, Mn, Co, Cr, Zn and Cu were determinated using flame atomic absorption spectrometry in nine lichen species of the Sul-Mato-Grossense cerrado. The average metal ion concentrations varied in the following ranges: Fe, 248.41-1568.01; Mn,
Jorge Luiz Raposo Junior +2 more
doaj +1 more source
Multi-tract multi-symptom relationships in pediatric concussion
eLife, 2022 Background: The heterogeneity of white matter damage and symptoms in concussion has been identified as a major obstacle to therapeutic innovation. In contrast, most diffusion MRI (dMRI) studies on concussion have traditionally relied on group-comparison ...
Guido I Guberman +6 more
doaj +1 more source
Multivariate variance ratio statistics [PDF]
, 2014 We propose several multivariate variance ratio statistics. We derive the asymptotic distribution of the statistics and scalar functions thereof under the null hypothesis that returns are unpredictable after a constant mean adjustment (i.e., under the Efficient Market Hypothesis).
Seok Young Hong +2 more
openaire +4 more sources
Advanced Materials Interfaces, EarlyView., 2023 This review discusses the use of Surface‐Enhanced Raman Spectroscopy (SERS) combined with Artificial Intelligence (AI) for detecting antimicrobial resistance (AMR). Various SERS studies used with AI techniques, including machine learning and deep learning, are analyzed for their advantages and limitations.
Zakarya Al‐Shaebi +4 more
wiley +1 more source