Now showing items 1-20 of 13601

    • 15° de imprecisión 

      Aparicio Camacho, William Fernando
      ¿Qué es el tiempo? Durante dos años he estado dándole vueltas a esta pregunta sin encontrar una respuesta precisa. Estamos hechos del ahora, pensamos en el pasado, imaginamos el futuro. 15° es el desplazamiento de la tierra ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Artes Escuela de Artes Plásticas. 
    • 3D Reconstruction of Anatomical Structures Using Interpolation Techniques and local Approaches 

      Arteaga Daza, Luis Felipe
      The reconstruction of the surface is the process by which a 3D object is reproduced from a collection of discrete values that sample the shape. These values are generally called point cloud. Commonly, the reconstruction ...
      Universidad Nacional de Colombia Sede Manizales Facultad de Ingeniería y Arquitectura Departamento de Ingeniería Eléctrica, Electrónica y Computación. 
    • 4H48: ¿Has decidido lo que vas a hacer? 

      Ugalde Ortega, Tatiana Elizabeth
      4H48: ¿Has decidido lo que vas a hacer? resulta del deseo de contener el abismo del suicida a través de las imágenes, textos y sonidos que emergieron a lo largo del proceso, invocadas por el azar. Una urgencia vital por ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Artes. 
    • El 6 de mayo de 1998, fecha de inflexión en la historia de las barras bravas en Bogotá 

      Torres Martínez, Juan Sebastián
      Este texto versa sobre la caída de una baranda de contención el 6 de mayo de 1998, durante la celebración de un gol en un partido de fútbol en Bogotá, Colombia. A partir de ahí, el autor intenta demostrar cómo la caída de ...
    • A computational solution for the software refactoring problem: a formalism toward an optimization approach 

      Nader Palacio, David Alberto
      Software Refactoring consists in reconstructing the code design of an object-oriented system without affecting the external functionality. Common refactoring tasks, in the initial steps, detect the source code ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial. 
    • A computational solution for the software refactoring problem: from a formalism toward an optimization approach 

      Nader Palacio, David Alberto
      Abstract: Software Refactoring consists in reconstructing the code design of an object- oriented system without affecting the external functionality. Common refactoring tasks, in the initial steps, detect the ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial. 
    • A Contribution to Semi-Automatic Segmentation of Point Clouds 

      Tamayo Quintero, Juan David
      The increase the emerging technologies and the low cost related with 3D data acquisition have allowed researchers to open new doors of research in domains like building information modeling (BIM), in-process inspection, ...
      Universidad Nacional de Colombia Sede Manizales Facultad de Ingeniería y Arquitectura Departamento de Ingeniería Eléctrica, Electrónica y Computación. 
    • A criteria based function for reconstructing low-sampling trajectories as a tool for analytics 

      Ospina Álvarez, Edison Camilo
      Abstract: Mobile applications equipped with Global Positioning Systems have generated a huge quantity of location data with sampling uncertainty that must be handled and analyzed. Those location data can be ordered in time ...
      Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Sistemas. 
    • A design procedure for a supervisory control structure in plantwide control 

      Moscoso Vásquez, Hilda Marcela
      Abstract: This work presents a methodology for designing a supervisory control structure in Plant-wide Control (PWC). First, available PWC structures are discussed focusing on their drawbacks originated from the scarce ...
      Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Química y Petróleos. 
    • A Framework for Evaluating Maintainability and Performance of Object-Relational-Mapping Tools in Web Application Frameworks 

      Alvarez Eraso, Danny Alejandro
      Web Application Frameworks (WAF) and Object-Relational Mapping (ORM) tools reduce the time and effort needed to develop high quality applications. However, there are many of them and choosing the best suited for a particular ...
      Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Sistemas Ingeniería de Sistemas e Informática. 
    • A framework for interactive training of automatic image analysis models based on learned image representations, active learning, and visualization techniques 

      Otálora Montenegro, Juan Sebastian
      Abstract. In this thesis work, the problem of applying active learning for a label efficient training of deep learning models is addressed. Firstly, in chapter one, the problem is introduced as well as the objectives and ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial. 
    • A Fuego Lento 

      Ortíz Fernández, Alejandra
      Queridos lectores, Esta es la historia de una anfitriona que los convida a degustar la alquimia de sus alimentos, para despertar la memoria del sabor y proponer el convivio de los invitados. De una mujer que decidió ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Artes. 
    • A Genetic Clustering Algorithm for Automatic Text Summarization 

      Suaréz Benjumea, Sebastian
      Abstract. Automatic text summarization has become a relevant topic due to the information overload. This automatization aims to help humans and machines to deal with the vast amount of text data (structured and un-structured) ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial Ingeniería de Sistemas. 
    • A hybrid evolutionary algorithm for vehicle routing problem with stochastic demands 

      Jaque Pirabán, Robinson Andrés
      In this work we propose a hybrid dynamic programming evolutionary algorithm to solve the vehicle routing problem with stochastic demands, it is a well known NP-hard problem where uncertainty enhances the computational ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial. 
    • A hybrid method for information technology selection combining multi-criteria decision making (MCDM) with technology roadmapping 

      García Mejía, Jaime Andrés
      Abstract: Strategic information technology (IT) management has been recognized as vital for achieving competitive advantage. IT selection, the process of choosing the best technology alternative from a number of available ...
      Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Ingeniería de la Organización Ingeniería Administrativa. 
    • A Kernel framework to support video data analysis 

      Insuasti Ceballos, Hernán David
      El objetivo de este trabajo es proponer un esquema basado en metodologías Kernel para apoyar el análisis de datos en video. La principal meta es revelar la información de mayor impacto contenida en datos de una alta dimensión ...
      Universidad Nacional de Colombia Sede Manizales Facultad de Ingeniería y Arquitectura Departamento de Ingeniería Eléctrica, Electrónica y Computación. 
    • A knowledge-based approach to information retrieval in collections of textual documents of the biomedical domain 

      Riveros Cruz, Luis Alejandro
      Abstract The exponential growth in the amount of available data has posed new challenges to re- searchers. Search on such amount of data is a difficult task which turns even harder when the data belongs ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial Ingeniería de Sistemas. 
    • A lattice-Boltzmann model for the Advection-Diffusion equation in generalized coordinates 

      García Sarmiento, Juliana
      Lattice-Boltzmann models (LBM) are very powerful simulation techniques for fluid dynamics, diffusion processes, mechanical waves, magneto- and electrodynamics. However, one of the main complications when working with these ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ciencias Departamento de Física Física. 
    • A methodology for the measurement of carbon monoxide concentration during in-situ combustion with tunable diode laser 

      Duque Posada, Juan Esteban
      A TDL system is reported to monitor carbon monoxide (CO) concentration under conditions similar to those of laboratory-scale tests used to characterize the behaviour of a heavy crude oil during in situ combustion (ISC). ...
      Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Procesos y Energía. 
    • A model for automatic categorization of software applications using non-parametric clustering and bytecode analysis 

      Escobar Avila, Javier Ricardo
      Automatic software categorization is the task of assigning software systems or libraries to categories based on their functionality. Correctly assigning these categories is essential to ensure that relevant libraries can ...
      Universidad Nacional de Colombia Sede Bogotá Facultad de Ingeniería Departamento de Ingeniería de Sistemas e Industrial Ingeniería de Sistemas.