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Fast computation of robust subspace estimators
ArticleAbstract: Dimension reduction is often an important step in the analysis of high-dimensional data. PCA is a poPalabras claves:Deterministic algorithm, High-dimensional data, Least trimmed squares, M-scale, Principal Component AnalysisAutores:Holger Cevallos-Valdiviezo, Van Aelst S.Fuentes:googlescopusNon-Technical Loss Detection Based on Electricity Consumption Data: A Case Study in Ecuador
Conference ObjectAbstract: The Detect Deviating Cells (DDC) technique is applied to detect energy fraudulent customers and othePalabras claves:Electricity fraud detection, Non-technical loss, outlier detectionAutores:Ariana Rodríguez-Cristiansen, Danny Arevalo, Danny Xavier Arévalo-Avecillas, Erasmo Garcia-Ochoa, Holger Cevallos-Valdiviezo, Miguel Valero-Carrera, Valdiviezo-Valenzuela P.Fuentes:googlescopusMeasuring the impact of the COVID-19 outbreak in Ecuador using preliminary estimates of excess mortality, March 17–October 22, 2020
ArticleAbstract: Objectives: Ecuador is among the worst-hit countries in the world by the coronavirus disease 2019 (CPalabras claves:covid-19, ECUADOR, Excess deaths, MortalityAutores:Allan Vergara-Montesdeoca, Gema Zambrano, Holger Cevallos-ValdiviezoFuentes:scopusIdentificación de posibles casos de pérdidas no técnicas de energía eléctrica en clientes residenciales de la ciudad de guayaquil, mediante el análisis de detección de celdas desviadas.
Master ThesisAbstract: Las pérdidas no técnicas de energía eléctrica representan uno de los principales problemas a los quPalabras claves:DETECCION DE ANOMALIAS, ENERGIA ELECTRICA-DETERMINACION DE PERDIDAS, ENERGIA ELECTRICA-ESTADISTICAAutores:Holger Cevallos-Valdiviezo, Miguel Arturo Valero CarreraFuentes:rraaePersonality Domains and their relationship with the Transformational Leadership Styles
ArticleAbstract: The impact of personality domains and work experience in the transformational leadership style, provPalabras claves:leadership, personality, Regressions, Transformational, Work experienceAutores:Carmen Padilla Lozano /, Carmen Padilla P., Danny Arevalo, Danny Xavier Arévalo-Avecillas, Holger Cevallos-Valdiviezo, Pino R.M.Fuentes:googlescopusLocal traditional foods contribute to diversity and species richness of rural women's diet in Ecuador
ArticleAbstract: Objective: To evaluate the dietary diversity and the nutrient contribution of traditional foods (locPalabras claves:diet, Nutrients, rural women, traditional foodsAutores:Daniela PhD Penafiel, Holger Cevallos-Valdiviezo, Ramón L. Espinel, Van Damme P.Fuentes:googlescopusTree-based pbkp_rediction on incomplete data using imputation or surrogate decisions
ArticleAbstract: The goal is to investigate the pbkp_rediction performance of tree-based techniques when the availablPalabras claves:Conditional inference tree, Missing data, Multiple imputation, pbkp_rediction, Surrogate decisionAutores:Holger Cevallos-Valdiviezo, Van Aelst S.Fuentes:googlescopusRobust estimation of principal components: a literature review
Conference ObjectAbstract: In this work we do a short literature review on the most relevant methods for robust estimation of PPalabras claves:outlier detection, Outliers, Principal Component Analysis, Robust EstimationAutores:Ariana Rodríguez-Cristiansen, Holger Cevallos-Valdiviezo, Patricia Valdiviezo-ValenzuelaFuentes:scopusPbkp_rediction of white shrimp harvest: the case of a small shrimp farm in Tenguel, Guayaquil-Ecuador
ArticleAbstract: Shrimp sector in Ecuador is nowadays one of the fastest-growing non-oil sectors towards the internatPalabras claves:aprendizaje estadístico, CAMARÓN BLANCO LITOPENAEUS VANNAMEI, COSECHA, Cross-Validation, harvest, MARS, Pbkp_redicción, pbkp_rediction, Statistical learning, validación cruzada, white shrimp Litopenaeus vannameiAutores:Ariana Rodríguez-Cristiansen, Carmen Padilla P., Danny Xavier Arévalo-Avecillas, Holger Cevallos-Valdiviezo, Patricia Valdiviezo-ValenzuelaFuentes:scopus