Examinando por Autor "Lucia Quintero M, O."
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Ítem Adaptive Architecture to Support Context-Aware Collaborative Networked Virtual Surgical Simulators (CNVSS)(2014-01-01) Diaz Leon, Christian Andres; Gomez, H.T.; Lucia Quintero M, O.; Acosta Maya, D.A.; Sakti SrivastavaStand-alone and networked surgical virtual reality based simulators have been proposed as means to train surgical skills with or without a supervisor nearby the student or trainee. However, surgical skills teaching in medicine schools and hospitals...Ítem Adaptive Architecture to Support Context-Aware Collaborative Networked Virtual Surgical Simulators (CNVSS)(2014-01-01) Diaz Leon, Christian Andres; Gomez, H.T.; Lucia Quintero M, O.; Acosta Maya, D.A.; Sakti Srivastava; Diaz Leon, Christian Andres; Gomez, H.T.; Lucia Quintero M, O.; Acosta Maya, D.A.; Sakti Srivastava; Universidad EAFIT. Departamento de Ingeniería de Sistemas; I+D+I en Tecnologías de la Información y las ComunicacionesStand-alone and networked surgical virtual reality based simulators have been proposed as means to train surgical skills with or without a supervisor nearby the student or trainee. However, surgical skills teaching in medicine schools and hospitals...Ítem Adaptive Architecture to Support Context-Aware Collaborative Networked Virtual Surgical Simulators (CNVSS)(2014-01-01) Diaz Leon, Christian Andres; Gomez, H.T.; Lucia Quintero M, O.; Acosta Maya, D.A.; Sakti SrivastavaStand-alone and networked surgical virtual reality based simulators have been proposed as means to train surgical skills with or without a supervisor nearby the student or trainee. However, surgical skills teaching in medicine schools and hospitals...Ítem An approach to emotion Recongnition in Single-channel EEG Singgnals using Stationar Wavelet Tansform(Springer, 2016-10-26) Gomez, Alejandro; Lucia Quintero M, O.; lopez, Natalia; Castro, Jaime; Mejia, GonzaloThe Regional Council of Biomedical Engineering for Latin America (CORAL) will host the VII Latin-American Congress of Biomedical Engineering (CLAIB 2016), October 26 – 28, 2016 at the Universidad Autónoma de Bucaramanga, Colombia. Special events of the coÍtem Attenuation of reverse time migration artifacts using Laguerre-Gauss filtering(European Association of Geoscientists and Engineers, EAGE, 2017-06-12) Paniagua, Juan Guillermo; Lucia Quintero M, O.; Paniagua, Juan Guillermo; Lucia Quintero M, O.; Universidad EAFIT. Departamento de Ciencias; Modelado MatemáticoLow-frequency artifacts appear in seismic images obtained by reverse time migration with the zero-lag crosscorrelation imaging condition due to the unwanted correlation of diving waves, head waves and backscattered waves. These artifacts can hide important details in the image and different methods have been proposed to attenuate or reduce them. The Laplacian filtering is the common post-processing technique to reduce the artifacts, but it increases the high-frequency noise in the image. Paniagua and Sierra-Sosa (2016) proposed the use of the Laguerre-Gauss spatial filtering (LGSF) to reduce the artifacts and enhance subsurface structures in the seismic image.\\ In this work, we describe the performance of the LGSF and demonstrate the good behavior of this postprocessing technique through synthetic examples. We used the original and different smoothed velocity models to show the capabilities of the LGSF and the results obtained in presence of small changes in the images. We demonstrate that despite the smoothed velocity models the LGSF preserves well the reflections with their true locations and significantly attenuates the low-frequency noise.Ítem Behavior comparison for biomass observers in batch processes(Wiley-Blackwell, 2013-06-18) Amicarelli, Adriana; Lucia Quintero M, O.; Di Sciascio, Fernando; Universidad EAFIT. Escuela de Ciencias; Modelado MatemáticoOn-line estimation of biomass concentration in batch biotechnological processes is an active area of research because normally, the biomass is the desired process product output, and also because it is necessary for control purposes to replace the unavailÍtem Evaluation of wavelet measures on automatic detection of emotion in noisy and telephony speech signals(IEEE, 2014-01-01) Vasquez-Correa, J. C.; Garcia, N.; Vargas-Bonilla, J. F.; Orozco-Arroyave, J. R.; Arias-Londono, J. D.; Lucia Quintero M, O.; Vasquez-Correa, J. C.; Garcia, N.; Vargas-Bonilla, J. F.; Orozco-Arroyave, J. R.; Arias-Londono, J. D.; Lucia Quintero M, O.; Universidad EAFIT. Departamento de Ciencias; Modelado MatemáticoDetection of emotion in humans from speech signals is a recent research field. One of the scenarios where this field has been applied is in situations where the human integrity and security are at risk. In this paper we are propossing a set of features based on the Teager energy operator, and several entropy measures obtained from the decomposition signals from discrete wavelet transform to characterize different types of negative emotions such as anger, anxiety, disgust, and desperation. The features are measured in three different conditions: (1) the original speech signals, (2) the signals that are contaminated with noise, or are affected by the presence of a phone channel, and (3) the signals that are obtained after processing using an algorithm for Speech Enhancement based on Karhunen-Love Transform. According to the results, when the speech enhancement is applied, the detection of emotion in speech is increased in up to 22% compared to results obtained when the speech signal is highly contaminated with noise. © 2014 IEEE.Ítem Extracted information quality, a comparative study in high and low dimensions(Inderscience Enterprises Ltd.) Ariza-Jimenez L.; Villa, LF; Pinel N.; Lucia Quintero M, O.; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)Ítem Extracted information quality, a comparative study in high and low dimensions(Inderscience Enterprises Ltd., 2020-12-11) Ariza-Jimenez L.; Villa, LF; Pinel N.; Lucia Quintero M, O.; Universidad EAFIT. Departamento de Ciencias; Biodiversidad, Evolución y ConservaciónÍtem Improving quality of life: Home Care for chronically ill and elderly people(InTechOpen, 2017-06-21) López, Natalia; Ponce, Sergio; Lucia Quintero M, O.; Vargas, FranciscoÍtem Las posibilidades de desarrollo de inteligencia artificial(2019-02-01) Lucia Quintero M, O.tiene como objetivo principal la divulgación didáctica de una de las más complejas tendencias del actual proceso globalizadorÍtem A Maximum Likelihood Ensemble Filter via a Modified Cholesky Decomposition for Non-Gaussian Data Assimilation(MDPI AG, 2020-02-06) Elias David Nino-Ruiz; Alfonso Mancilla-Herrera; López, Santiago; Lucia Quintero M, O.; Universidad EAFIT. Escuela de Ciencias; Modelado MatemáticoThis paper proposes an efficient and practical implementation of the Maximum Likelihood Ensemble Filter via a Modified Cholesky decomposition (MLEF-MC).Ítem Modeling perspective for the relevant market of voice services: Mobile to Mobile.(2015-10-19) Lucia Quintero M, O.; Jaramillo P, Fabian L.; Bastidas, Manuela; Universidad EAFIT. Escuela de Ciencias; Modelado MatemáticoThe markets, associated to -mobile to mobile- services of voice, in Advanced Mobile Telecommunications services in Latin America have been subject to dominant operator regulatory processes, which are necessary to attain the market conditions...Ítem Modelo Matemático de un Motor de Combustión Interna para uso en Control(2012-01-01) Hernandez, Monica; Díaz Torres, A.G.; Lucia Quintero M, O.; Hernandez, Monica; Díaz Torres, A.G.; Lucia Quintero M, O.; Universidad EAFIT. Departamento de Ingeniería de Producción; Ingeniería, Energía, Exergía y Sostenibilidad (IEXS)Se obtiene el modelo matemático orientado al control de un motor de combustión interna anclado a un banco de pruebas. El modelo exige aplicación de ecuaciones de primeros principios y estimación de parámetros.Ítem Modelo Matemático de un Motor de Combustión Interna para uso en Control(2012-01-01) Hernandez, Monica; Díaz Torres, A.G.; Lucia Quintero M, O.Se obtiene el modelo matemático orientado al control de un motor de combustión interna anclado a un banco de pruebas. El modelo exige aplicación de ecuaciones de primeros principios y estimación de parámetros.Ítem Sublime Un pliegue matemático para la historia de estas emociones(Fondo Editorial Universidad EAFIT, 2020-06-23) Salazar Martinez, Carlos Andres; Lucia Quintero M, O.La detección automática de estados afectivos en textos ha hecho carrera como una de las herramientas fundamentales para el procesamiento de altos volumenes de información.