Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Gabriel Escarela"'
Autor:
Alejandro Román Vásquez, Gabriel Escarela, Hortensia Josefina Reyes-Cervantes, Gabriel Núñez-Antonio
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2024 (2024)
Decisions regarding competing risks are usually based on a continuous-valued marker toward predicting a cause-specific outcome. The classification power of a marker can be summarized using the time-dependent receiver operating characteristic curve an
Externí odkaz:
https://doaj.org/article/fbca68d841ef4108881960d85597cfe3
Autor:
Alejandro Román Vásquez, José Ulises Márquez Urbina, Graciela González Farías, Gabriel Escarela
Publikováno v:
Computational Statistics.
Publikováno v:
Breast Cancer: Basic and Clinical Research, Vol 11 (2017)
Background: Research into long-term cause-specific mortality of women diagnosed with breast cancer is important because it allows for the splitting of the population into patients who eventually die from breast cancer and from other causes. The adopt
Externí odkaz:
https://doaj.org/article/c26f3819951349f0a92b0ba22a29230d
Autor:
Gabriel Escarela, Alejandro Román Vásquez, Graciela González-Farías, José Ulises Márquez-Urbina
Publikováno v:
Statistical Methods in Medical Research. :096228022311675
The discriminative and predictive power of a continuous-valued marker for survival outcomes can be summarized using the receiver operating characteristic and predictiveness curves, respectively. In this paper, fully parametric and semi-parametric cop
Autor:
GABRIEL ESCARELA, ANGÉLICA HERNÁNDEZ
Publikováno v:
Revista Colombiana de Estadística, Vol 32, Iss 1, Pp 33-58 (2009)
Las cópulas se han convertido en una herramienta útil para el modelado multivariado tanto estocástico como estadístico. En este artículo se revisan propiedades fundamentales de las cópulas que permitan caracterizar la estructura de dependencia
Externí odkaz:
https://doaj.org/article/7c48e30d08a34fd390658ead124e9c30
Autor:
Alejandro R. Vásquez, Gabriel Escarela
Publikováno v:
Communications in Statistics - Theory and Methods. 50:2831-2847
Copula-based constructions of the joint distribution of the overall survival time and the cause-specific failure are developed for the analysis of competing risks data. Covariate effects are incorp...
Publikováno v:
Journal of Applied Statistics. 45:2741-2759
Missing covariates data is a common issue in generalized linear models (GLMs). A model-based procedure arising from properly specifying joint models for both the partially observed covariat...
Publikováno v:
Statistics in medicineReferences. 39(28)
Receiver operating characteristic (ROC) and predictiveness curves are graphical tools to study the discriminative and predictive power of a continuous-valued marker in a binary outcome. In this paper, a copula-based construction of the joint density
Publikováno v:
Statistical Methods in Medical Research. 25:1579-1595
Competing risks arise in medical research when subjects are exposed to various types or causes of death. Data from large cohort studies usually exhibit subsets of regressors that are missing for some study subjects. Furthermore, such studies often gi
Publikováno v:
Computational Statistics & Data Analysis. 143:106842
Clustering complex circular phenomena is a common problem in different scientific disciplines. Examples include the clustering of directions of animal movement in the wild to identify migration patterns, and the classification of angular positions of