Results 71 to 80 of about 672,920 (300)

Recent developments in Marshall-Olkin distributions [PDF]

Contributions to Mathematics, 2020
Jiju Gillariose, Lishamol Tomy, Christophe Chesneau, Manju Jose   +3 more
doaj   +1 more source

Characterization of bathtub distributions via percentile residual life functions [PDF]

In reliability theory and survival analysis, many set of data are generated by distributions with bathtub shaped hazard rate functions. Launer (1993) established several relations between the behaviour of the hazard rate function and the percentile ...
Alba M. Franco-Pereira, Juan Romo, Rosa E. Lillo   +2 more
core  

Bayesian non-parametric specification of bathtub shaped hazard rate functions

, 2023
20 pages, 8 figures. This is a technical report expanding work in a previous short conference paper.
Arnold, Richard, Chukova, Stefanka, Hayakawa, Yu   +2 more
openaire   +2 more sources

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez, Anna Felip‐Badia, Marina Caballero‐Bellon, Nazaret Sanchez‐Sierra, Alicia Castañeda, Moira Garraus, Maite Gorostegui, Margarida Simão‐Rafael, Juan Pablo Muñoz, Marta Perez‐Somarriba, Salvador Mañe, Mariana Cecilia Planells, Sara Perez‐Jaume, Jaume Mora   +13 more
wiley   +1 more source

A Two-Parameter Weighted Rama Distribution with Properties and Application

Universal Journal of Mathematics and Applications, 2019
In this paper, a two-parameter weighted Rama distribution which includes one parameter Rama distribution introduced by Shanker [1] has been proposed for modelling real lifetime data.
Tesfalem Eyob, Rama Shanker
doaj   +1 more source

Semi-parametric estimation of the hazard function in a model with covariate measurement error [PDF]

, 2006
We consider a model where the failure hazard function, conditional on a covariate $Z$ is given by $R(t,\theta^0|Z)=\eta\_{\gamma^0}(t)f\_{\beta^0}(Z)$, with $\theta^0=(\beta^0,\gamma^0)^\top\in \mathbb{R}^{m+p}$.
Martin-Magniette, Marie-Laure, Taupin, Marie-Luce   +1 more
core   +3 more sources

Improved Outcomes for Older Children, Adolescents, and Young Adults With Neuroblastoma in the Post‐Immunotherapy Era: An Updated Report From the International Neuroblastoma Risk Group

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We describe clinical and biologic characteristics of neuroblastoma in older children, adolescents, and young adults (OCAYA); describe survival outcomes in the post‐immunotherapy era; and identify if there is an age cut‐off that best discriminates outcomes.
Rebecca J. Deyell, Kavitha Srivatsa, Paola Angelini, Pei‐Chi Kao, Brady Payne, Arlene Naranjo, Sveva Castelli, Miho Kato, Miki Ohira, Ulriche Pöetschger, Yaël Mossé, Lucas Moreno, Meredith S. Irwin, Ramya Ramanujachar, Wendy B. London   +14 more
wiley   +1 more source

Mathematical Properties of the Inverted Topp–Leone Family of Distributions

Mathematics
This article defines an inverted Topp–Leone distribution. Several mathematical properties and maximum likelihood estimation of parameters of this distribution are considered.
Daya K. Nagar, Edwin Zarrazola, Santiago Echeverri-Valencia   +2 more
doaj   +1 more source

On the Effect of Random Alternating Perturbations on Hazard Rates

, 2006
We consider a model for systems perturbed by dichotomous noise, in which the hazard rate function of a random lifetime is subject to additive time-alternating perturbations described by the telegraph process.
Di Crescenzo, Antonio, Martinucci, Barbara   +1 more
core   +1 more source

Asymptotic baseline of the hazard rate function of mixtures [PDF]

Journal of Applied Probability, 2005
In this article, we consider the limit behavior of the hazard rate function of mixture distributions, assuming knowledge of the behavior of each individual distribution. We show that the asymptotic baseline function of the hazard rate function is preserved under mixture.
openaire   +2 more sources