Examinando por Autor "Uribe Cadavid, Diana Cecilia"
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Ítem Optimización de parámetros y de valores de inicio para el modelo de Holt basado en señales de rastreo(Revista EIA, 2010-12) Castro Zuluaga, Carlos Alberto; Uribe Cadavid, Diana Cecilia; Universidad EAFIT. Departamento de Ingeniería de Producción; ccastro@eafit.edu.co; pfdianauribe@eia.edu.co; Gestión de Producción y LogísticaTime series models are quantitative techniques commonly used to forecast the behavior of variables -- These models include the exponential smoothing with trend or Holt model that requires the definition of the smoothing constants α and β and the initialization values, both required for the model upgrade -- This paper proposes a different way to obtain the parameter values and initial conditions of the Holts model, optimizing the tracking signal range (TSR), in order to achieve a more robust model from the viewpoint of accuracy of the results and historical performance -- Some comparisons between the proposed approach and the traditional methods based on the mean absolute deviation (MAD) and the mean square error (MSE) are provided -- These are the measurestraditionally used to determine the degree of accuracy of a model, and a better model performance is obtainedÍtem Sistema de apoyo para la toma de decisiones para la gestión de inventarios(Universidad EAFIT, 2012) Uribe Cadavid, Diana Cecilia; Castro Zuluaga, Carlos Alberto