Examinando por Autor "Ruiz Rizzo, Adriana Lucía"
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- ÍtemFactores de predicción de la aparición de personas mayores reportadas como desaparecidas, a partir de modelos de aprendizaje automático supervisado(Fundación Universitaria Los Libertadores. Sede Bogotá., ) Ruiz Rizzo, Adriana Lucía; González Veloza, José John FredyPerson missingness is an enigmatic and frequent phenomenon that can bring about negative consequences for the missing person, their family, and society in general. Therefore, it is necessary to better understand the phenomenon of missingness and thus find ways to solve cases in the most adequate manner for all parties involved. Age-related cognitive changes and a higher vulnerability to dementia can increase the likelihood of older adults going missing. Thus, the present study sought to identify individual and environmental factors that might predict that an older adult reported missing will be found. To do so, supervised machine learning models were used based on the missing person cases open data of Colombia between 1930 and June, 2021 (n = 7855). Classification algorithms were trained to predict whether an older adult who went missing would eventually be found. The classification models with the best performance in the test data were those based on decision trees. Particularly, the Light Gradient Boosting Machine algorithm showed 71% classification accuracy (i.e., 8% above a base model built with the mean of the reported missingness period of the training data). The features with the greatest contribution to the classification were date and place of the missing person case, as well as the age and sex of the missing person. These results help us better understand the societal phenomenon of person missingness and can have important practical implications.
- ÍtemFULL Investiga Enero a Junio 2021 Número 3.(Fundación Universitaria Los Libertadores. Sede Bogotá., ) Bayona Pérez, Laura; Cortes Valencia, Andrés L.; Rozo Castillo, Jairo A.; Pérez Acosta, Andrés M.; Ruiz Rizzo, Adriana Lucía; Petearson Anzola, John; Fonseca G., Lida Rubiela; Beltrán M., Duván Santiago; Bojacá, Edwin Enrique; Caicedo Caicedo, Raquel; Caicedo López, Marilena; Bohórquez Chautá, Clara Adriana; Medina Velandia, Lucy Nohemy; Ciprian Anzola, Johan Sebastián; Castro Yara, Juan Camilo; Reyes Gil, Rosa Eugenia; González Santiago, Lu An; López Valek, Fanny Margarita; Ospina Lozano, Luis Eduardo; Echeverría King, Luisa Fernanda; Pachajoa Londoño, Alejandro; Danna-Buitrago, Jenny Paola; Palacios Chavarro, Janneth Arley, (editora).; Bohórquez Pacheco, Sandra Patricia, (editora invitada).