Results 11 to 20 of about 2,001,462 (190)
The Basic Reproduction Number for the Markovian SIR-Type Epidemic Models: Comparison and Consistency
Journal of Mathematics, 2022 This paper is concerned with a well-known epidemiological concept to measure the spread of infectious disease, that is, the basic reproduction number. This paper has two major objectives.
Muteb Faraj Alharthi
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A new efficient method to detect genetic interactions for lung cancer GWAS
BMC Medical Genomics, 2020 Background Genome-wide association studies (GWAS) have proven successful in predicting genetic risk of disease using single-locus models; however, identifying single nucleotide polymorphism (SNP) interactions at the genome-wide scale is limited due to ...
Jennifer Luyapan +15 more
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, 2020 In the paper we study properties of Aumann's stochastic integral driven by a two-parameter increasing process and set-valued Ito's integral with respect to the two-parameter martingale. Both types of integrals are understood as set-valued processes. Next,
M. Michta, K. Świa̧tek
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On two-parameter non-degenerate brownian martingales
Bulletin des Sciences Mathématiques, 1998 In the first part of the paper the authors study the existence and the properties of the density of the two-parameter Brownian martingale \(N(z)= \int_{[0,T]^2} G(\zeta) dW(\zeta)\), \(z \in [0,T]^2\), driven by a Brownian sheet \(\{W(z), z\in [0,T]^2\}\), and with a square-integrable adapted process \(G\) as integrand verifying, in addition to the ...
Nualart, David, Tindel, Samy
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Assessing the role of spatial externalities in the survival of Italian innovative startups
Regional Science Policy &Practice, EarlyView., 2023 Abstract The paper provides novel empirical evidence about the effects of spatial externalities on the survival of innovative startups in Italy. Using geocoded firm‐level data, we build micro‐geographic measures of specialization and diversity that are robust to the modifiable areal unit problem.
Diego Giuliani +4 more
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New Flexible Asymmetric Log-Birnbaum–Saunders Nonlinear Regression Model with Diagnostic Analysis
AxiomsA nonlinear log-Birnbaum–Saunders regression model with additive errors is introduced. It is assumed that the error term follows a flexible sinh-normal distribution, and therefore it can be used to describe a variety of asymmetric, unimodal, and bimodal ...
Guillermo Martínez-Flórez +2 more
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Some Classes of Two-Parameter Martingales
The Annals of Probability, 1981 A class of two-parameter martingales, named "martingales with orthogonal increments" or "martingales of direction independent variation," is introduced. It is shown that this class, which is characterized by a sample function property, is included in the class of martingales of path independent variation and includes the class of strong martingales ...
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On inequalities for two-parameter martingales
Mathematische Annalen, 1989 To date, it is not known whether Davis' inequality holds for two- parameter martingales M, i.e. whether the ``pure'' norms induced by the supremum of the modulus of M and the square root of the sum of squared two-parameter increments are equivalent. There are two relevant ``mixed'' norms associated with quantities described in the following way.
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Smoothed Weighted Quantile Regression for Censored Data in Survival Analysis
AxiomsIn this study, we propose a smoothed weighted quantile regression (SWQR), which combines convolution smoothing with a weighted framework to address the limitations.
Kaida Cai +3 more
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International Journal of Cancer, EarlyView.ABSTRACT To improve the prediction of relapse for clinical stage I seminoma, we aimed to validate the Boormans model (incorporating tumor size, rete testis invasion, and lymphovascular invasion) against the conventional classification (tumor size > 4 cm/rete testis invasion).
Andreas Banner +15 more
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