Results 51 to 60 of about 8,311,668 (271)

Orthogonal polynomials on the negative multinomial distribution

Journal of Multivariate Analysis, 1975
AbstractOrthogonal polynomials on the multivariate negative binomial distribution, (1 + Θ)−α−x(πj=0pΘjxjxj!) Γ(α + x)Γ(α) where α > 0, Θ1 > 0, x = Σ Θi, x0, x1, …, xp = 0,1, … are constructed and their properties studied.
openaire   +1 more source

Empirical Bayes method in the study of traffic safety via heterogeneous negative multinomial model [PDF]

, 2010
In the study of traffic safety, expected crash frequencies across sites are generally estimated via the negative binomial model, assuming time invariant safety.
Simon P. Washington, Washington, Simon P., Washington, Simon, Shin, Kangwon, Kangwon Shin   +4 more
core   +1 more source

Employment Trajectories of Patients With Systemic Lupus Erythematosus and Factors Driving Transitions Between States

Arthritis Care &Research, EarlyView.
Objective Systemic lupus erythematosus (SLE) significantly impacts employment capacity. This study aimed to investigate the impact of burden of disease activity, damage, and treatment on employment outcomes and transitions in patients with SLE. Methods Using data from a single center, we analyzed employment transitions, adjusted mean disease activity ...
Javier Mencia‐Ledo, Zahi Touma, Laura Whittall Garcia, Dafna D. Gladman, Behdin Nowrouzi‐Kia   +4 more
wiley   +1 more source

Bayesian Hierarchical Multinomial Modeling of Multifunctional Word Usage in Learner-Corpus Data: Evidence from the English Word That

Mathematics
This study applies a Bayesian hierarchical multinomial model to examine the functional distribution of the English word ‘that’ in learner-corpus data.
Xiyang Li, Haoxin Xu, Ke Song, Guowei Chen, Chenggang Wu   +4 more
doaj   +1 more source

dynoGP: Deep Gaussian Processes for Dynamic System Identification

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli, Marco Forgione, Dario Piga, Marco Zaffalon   +3 more
wiley   +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

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Can a single question about family members’ sense of security during palliative care predict their well-being during bereavement? A longitudinal study during ongoing care and one year after the patient’s death

BMC Palliative Care, 2019
Background It has been recognised that more evidence about important aspects of family members’ sense of security during palliative care is needed. The objectives of the study was: i) to discover what variables are associated with family members feeling ...
Anna Milberg, Maria Liljeroos, Barbro Krevers   +2 more
doaj   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

Advanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei, Mirza Sahaluddin, Mostafa Bedewy, Paul W. Leu   +3 more
wiley   +1 more source

Which negative multinomial distributions are infinitely divisible?

Bernoulli, 2003
A general class of negative multinomial distributions on \(\mathbb N_0^n\) is defined by its probability generating functions to be of the form \((A(a_1,\dots,a_n)/A(a_1z_1,\dots,a_nz_n))^\lambda\) for some \(\lambda>0\) and some function \( A(\mathbf z)=\sum_{T\subset\{1,\dots,n\}}a_T\prod_{i\in T}z_i\).
openaire   +3 more sources