Results 51 to 60 of about 139 (121)
The modeling and estimation of the conditional volatility associated with a stochastic process usually have been based on parametric ARCH-type and stochastic volatility models.
SANTIAGO GALLÓN, KAROLL GÓMEZ
doaj
Modelo factorial dinámico threshold Threshold Dynamic Factor Model
En este artículo se introduce el modelo factorial dinámico threshold, el cual permite analizar sistemas de series temporales que presenten comportamientos no lineales del tipo umbral.
MARÍA ELSA CORREAL, DANIEL PEÑA
doaj
Radiologic aspects of COVID-19 pneumonia: outcomes and thoracic complications. [PDF]
Parra Gordo ML +3 more
europepmc +1 more source
Este trabajo predice la volatilidad de la rentabilidad diaria del precio del azúcar, en el período comprendido entre 1 de junio de 2011 y el 24 de octubre de 2013.
Arody Ortiz Alvarado +1 more
doaj
COVID-19 pneumonia: relationship between initial chest X-rays and laboratory findings. [PDF]
Nava-Muñoz Á +5 more
europepmc +1 more source
En este artículo se analiza la difusión de innovaciones tecnológicas de tres productos innovadores de la industria química y agroindustrial colombiana a través de regresiones no lineales.
JHON WILDER ZARTHA SOSSA +2 more
doaj
The fluctuations exhibited by natural populations have fascinated ecologists for the last eighty years. However, a vigorous debate between different schools of population ecologists has hampered reaching a consensus about the causes of such numerical ...
MAURICIO LIMA
doaj
[A decision framework for an adaptive behavioral intervention for physical activity using hybrid model predictive control: illustration with Just Walk]. [PDF]
Cevallos D +4 more
europepmc +1 more source
[Lung cancer mortality trends in Colombia, 1985-2018Tendências na mortalidade por câncer de pulmão na Colômbia de 1985 a 2018]. [PDF]
Giraldo-Osorio A +5 more
europepmc +1 more source
[Development of severity and mortality prediction models for covid-19 patients at emergency department including the chest x-ray]. [PDF]
Calvillo-Batllés P +6 more
europepmc +1 more source

