Propuesta de Carta de Control Multivariada utilizando la Media Winsorizada basada en la Carta |S| / Proposed Multivariate Control Chart using Winsorized Mean based on the |S| Chart

3D GrabCut: Una segmentación de volúmenes basada en la técnica GrabCut utilizando la GPU

The image segmentation consists in obtaining a region of interest within a larger area. GrabCut is a recent technique of 2D segmentation which presents excellent results. This is based on representing the image as a flow network, and then apply a minimum cut algorithm on the graph and separate the background image (background) and the region of interest (foreground). This article presents a nov...

On the multivariate variation control chart

Multivariate control charts such as Hotelling`s T^ 2 and X^ 2 are commonly used for monitoring several related quality characteristics. These control charts use correlation structure that exists between quality characteristics in an attempt to improve monitoring. The purpose of this article is to discuss some issues related to the G chart proposed by Levinson et al. [9] for detecting shifts in ...

Application of robust multivariate control chart with Winsorized Mean: a case study

Water pH and active ingredient concentration are two of the most important variables to consider in the manufacturing process of fungicides. If these variables do not meet the required standards, the quality of the product may be compromised and lead to poor fungicide performance when water is used as the application carrier, which is in most cases. Given the correlation between the variable...

Impacto de la ironía en la minería de opiniones basada en un Léxico Afectivo

En este art́ıculo se describe un método sistemático que identifica la polaridad de textos en Español, aśı como el impacto de la irońıa en la mineŕıa de opiniones. Se propone una aproximación basada en un aprendizaje automático y en la extracción de caracteŕısticas a partir de un Léxico Afectivo en Español. Fue necesaria la creación de un corpus para el entrenamiento y evaluación del método propu...

Sur la fréquence de leptospirose en Iran