Ponencias

URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/14724

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A graphic environment for user interfaces in embedded devices
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2018) Arce-Orozco, Armando; González-Torres, Antonio
Abstract. Embedded systems have limited processing and storage capacities, and small screens to display details about their status and statistics on the operations they perform. These systems are used extensively in homes, the service industry and manufacturing industries. In recent years, several proposals and tools have emerged to visually represent the information produced by embedded systems, in order to provide methods to users to make decisions in a timely manner [3]. The development of these systems can use libraries such as DirectFB, Qt-E, and NanoX, and APIs such as OpenGL and DirectX. However, these can be heavy for some devices and consume a lot of resources to display the graphic primitives required by the interfaces. So, C / C ++ is a good alternative as it is very efficient and works at a low level, although it requires a complex set of tools (compilers, debuggers, libraries) to recompile the programs for each architecture, in addition to its high learning curve, because memory management is a difficult task to be performed. As a result, this research work proposes a graphic environment called Di¨ok¨ol, which is based on the OpenVG graphics standard and Lua. This environment is aimed to overcome some of these disadvantages and is targetted to facilitate the implementation of user interfaces for embedded systems.
A model for recommending actions during the collaborative design of visual analytics flows
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2019) Arce-Orozco, Armando; González-Torres, Antonio; Mata-Montero, Erick; Bener, Ayse; Jara-Watson, Hans
Abstract. Visual Analytics (VA) is a process to facilitate the uncovering of knowledge from large and complex datasets to enable users to make informed decisions. However, the design of VA tools is frequently performed by multidisciplinary teams that can be physically in the same place or distributed across different locations. Therefore, there is an intrinsic collaboration need between team members and also of proposing methods to support these teams to work collaboratively during the design and implementation of VA systems. Although some proposals have made on the use of visual data flows and recommender systems, its combination with a Multi-Device Environment can benefit the discussion and exchange of knowledge during design and programming. Therefore, this article presents the design of an architecture that combines a Multi-Device Environment (MDE) with visual data flows and recommender systems for the design of VA tools in a collaborative way. The intention is to support designers and programmers during the design of visual data flows through the sharing and analysis of ideas in a collaborative environment supported by a recommender system that aids decision making during the design of flows.
Active methodologies applied to entrepreneurship training: implications in Higher Education of Computing careers
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2024) Garita González, Gabriela; Ramírez Sandi, Mariana
Abstract. In Today's context, fostering entrepreneurship has become a priority for universities, recognizing its importance in economic and social development. This article addresses the integration of active methodologies in entrepreneurship education, focusing on students in Computer Science and Informatics majors. It highlights the need to go beyond technical skills, and more so to emphasize the importance of innovation, entrepreneurial vision, and interpersonal skills. A creative cycle is presented to guide the training process, supported by an information system that automates the management of entrepreneurial projects. Additionally, a comprehensive training strategy is described, including student participation in practical activities, teamwork, and collaboration with entrepreneurs. This approach not only strengthens theoretical knowledge but also promotes practical skills and entrepreneurial attitudes, preparing students for the constantly evolving challenges of the professional world.
Ajuste Automático de Hiperparámetros mediante Algoritmos Genéticos para la Estimación de Esfuerzo
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2021) Villalobos-Arias, Leonardo; Quesada-López, Christian; Jenkins, Marcelo; Murillo-Morera, Juan
Resumen. Estudios en el área de la estimación del esfuerzo del desarrollo de software han reportado el impacto del ajuste de hiperparámetros en los modelos basados en técnicas de aprendizaje automático. Múltiples algoritmos de ajuste han sido propuestos en la literatura con el objetivo de mejorar el desempeño de las estimaciones. En este estudio comparamos los algoritmos de ajuste de hiperparámetros Dodge, Grid, Harmony, Tabu y Random Search con el Genetic Standard, 1+1 y Compact para evaluar el impacto en la exactitud y la estabilidad de los modelos de estimación de esfuerzo. Realizamos la evaluación utilizando el conjunto de datos ISBSG R18 y ajustamos automáticamente los hiperparámetros de las técnicas Support Vector Regression, Classification and Regression Trees y Ridge Regression. Los resultados del análisis de Scott-Knott muestran que los algoritmos genéticos obtienen un desempeño superior o similar a los demás algoritmos de ajuste, incluyendo Grid Search. El ajuste de hiperparámetros alcanza un impacto de hasta un máximo de 0,21 en la exactitud estandarizada con valores finales de hasta 0,53. Los modelos de Support Vector Regression optimizados con algoritmos genéticos muestran la mayor exactitud y mejoran la estabilidad de las estimaciones con respecto a los demás algoritmos de ajuste.
Applying a Distributed CSCL Activity for Teaching Software Architecture
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2011) Giraldo, Faber D.; Herrera, Myriam; Neyem, Andres; Arciniegas, Jose Luis; Ochoa, Sergio F.; Clunie, Clifton; Zapata, Sergio; Lizano Madriz, Fulvio
Abstract. Teaching and learning software engineering have been recognized as important challenges for computer science students and instructors. These challenges become stronger if we consider the distributed software development scenario that is gaining space everyday into the software industry. In order to help address this challenge, this article introduces a Collaborative and Distributed Learning Activity (CODILA). This collaborative activity helps students to reach the professional skills required in the professional work, and instructors to perform such transfer process. The paper also presents and discusses the obtained results from a particular CODILA, which address the challenge of designing a software architecture of a communication infrastructure in a distributed way. Six Latin American universities participated in the activity. The obtained results were satisfactory and indicate these types of experiences can be used to address the stated challenges.
Árbol Radial en Racimos: Optimizando el uso del espacio en la visualización de árboles radiales
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2017) Arce-Orozco, Armando; Camacho-Valerio, Luis; Madrigal-Quesada, Steven
Resumen. La representación gráfica de jerarquías de información permite reconocer fácilmente las relaciones existentes entre los diferentes elementos de tales estructuras. El árbol radial es una técnica para el dibujo de jerarquías que es visualmente atractiva, intuitiva y utiliza el espacio de forma eficiente. Aunque la técnica fue desarrollada a finales de los setenta, es recientemente cuando ha adquirido más interés debido a su utilización en varios sistemas modernos de visualización de información. En este trabajo presentamos una breve revisión de los algoritmos básicos para dibujar árboles radiales y proponemos un nuevo algoritmo que permite hacer un uso más eficiente del espacio disponible.
Contributing to the OER movement: A practical experience
(IEEE, 2017) Mora Rivera, Sonia; Coto, Mayela
Open educational resources (OER) propose a culture of sharing to make knowledge a good for humanity. The educational field recognizes the potential of OER to expand access to education and the Information and Communication Technologies (ICT) provide the context for sharing, using and reusing this knowledge. In addition, the OER movement offers scholars the opportunity to rethink their educational practice. Although the literature has shown that academics in general have the practice of sharing their educational resources with close colleagues, it is also true that open and large-scale exchange through appropriate licensing and institutional repositories is an emergent move in many universities. This paper presents an exploratory study to promote, among academics and students, their participation in the OER movement. The experience allowed to generate knowledge on the subject, to develop and validate a set of educational resources to later create in the institutional repository the first OER community.
Curso virtual sobre la enseñanza y el aprendizaje de las funciones ofrecido por la actividad académica Matemática para la Enseñanza Media, Universidad Nacional
(Universidad Nacional (Costa Rica), 2017) Alfaro Arce, Ana Lucía; Alpízar Vargas, Marianela; Morales-López, Yuri
Durante 2016 la actividad académica Matemática para la Enseñanza Media (MATEM) realizó un curso de actualización para los docentes participantes en dicha actividad, con la modalidad de curso virtual. El desarrollo e implementación del curso contempló: el diseño pedagógico, el diseño e implementación del curso en la plataforma Moodle, el desarrollo de diversos recursos de apoyo a los contenidos, aplicación de evaluaciones sumativas y formativas. En este documento se presenta el análisis que se realizó con algunos de los insumos recolectados en la primera sesión de dicho curso por medio de un foro donde los docentes externaron las razones por la cuales consideraban que los estudiantes del curso MATEM-Precálculo fallaban preguntas de nociones básicas de funciones. La implementación de este curso permitió: 1) tener contacto frecuente con los docentes inscritos en diversas regiones de Costa Rica, durante todo 2016 y 2) enlistar una serie de dificultades que presentan los estudiantes en conocimientos fundamentales de las funciones.
Desirable competencies in Information Systems Engineering graduates from the National University of Costa Rica, from the perspective of the employer
(Institute of Electrical and Electronics Engineers (IEEE) (Estados Unidos), 2022) Cabrera Alzate, Sandra; Garita González, Gabriela; Villalobos Murillo, Johnny; Cordero Esquivel, Carmen
Abstract. The research identified the skills, abilities and knowledge that companies require from professionals graduated in Information Systems Engineering from the National University of Costa Rica. As a method, first, an exploratory analysis of the main international references was carried out to create the profile. Then, the desirable skills were obtained by employers in the public and private sectors, thanks to data analysis composed of three techniques: interview, survey and focus group. Among the topics in greatest demand are: cloud computing, project development, quality control, cyber security, business analysis, organizational process management, internet of things, architecture, big data, data analysis. The valuable implications of this study focus on the development of more skills, such as adaptability, self-learning, innovation, English language proficiency, effective communication, active listening, empathy, teamwork, customer service, leadership.
Differences between programming languages offered by the academy versus demanded by the companies in Costa Rica: Information Systems Engineering from the Universidad Nacional
(Instituto of Electrical and Electronica Engineers (IEEE), 2017) Quesada Rosales, Ariella; Castro, Oscar M.
This article presents the results of an investigation that aims to analyze the differences between programming language required by companies in the Costa Rican labor market versus current programming languages offered by the academy. It also shows the main factors to consider new graduates in this specific area of information and communication technologies to be hired. The study finds that there is a consistent relationship between the major programming languages taught at universities and request by companies that corresponds to management Java, C++, C#, Javascript and PHP.
Disciplinary and Generic Abilities in PBL: A Study of Life Stories from the Gender Perspective in Systems Engineering Education
(University of Brasilia, 2018) Sandoval-Carvajal, Maria-Marta; Lizano Madriz, Fulvio; Porras Piedra, Elena; Cortés Chavarría, Rita
While it is true that socio-economic environment plays a determining role in terms of gender and entry into technological careers such as systems engineering, tendency to generate generic and disciplinary competencies from the gender point of view, is also something relevant to analyze specific actions that allow curricular changes in curricula. Recent studies show a reduction in the entry of women into systems engineering careers since several years ago. Some of these studies suggest, among other things, aspects of socio-economic perception to explain this phenomenon. In this research we want to offer a new angle of debate focused on the results of the training process by using PBL case of study in Systems Engineering grade. We were interested in exploring the generation of competencies by gender. The Tuning Latin America project, which was originated in its European counterpart, represented an effort to locate generic and disciplinary competencies of computer science practitioners with the participation of 14 universities in the region. In this study we explore the state of internalization of disciplinary and generic skills in systems engineering students based on their life histories by considering the gender perspective. The main research method used was content analysis of approximately 150 life histories of systems engineering students. Previously, a set of disciplinary and generic skills was defined based on the classification of such skills included in the Tuning Latin America project. Interviews and focus groups sessions were also used in order to validate information. The results indicate several interesting aspects. The main competence identified by men is the disciplinary competence "Apply knowledge of computer science" and for women it was a generic competence called “the teamwork ability”. The results also show evidence that the PBL and management by competencies can help visibility of competencies something that regular Systems Engineering students would not consider, especially in the case of men, who in spite of consider first some disciplinary competences, they tend to put other generic competencies in second place. This aspect, which seems not related to gender stereotypes, could also be other attractive factor to motivate women to enter Systems Engineering education. Finally, this study not only points out the differences, but also the common elements in the teaching-learning process of engineering, such as the balance between both groups of competencies. Both male and female students using the PBL and a competencies approach, show the importance of a balance between technical and generic skills, a situation that guarantees job and social integration for future professionals.
El Acercamiento de la Robótica Educativa a Estudiantes de Primaria y Secundaria de Costa Rica, Como una Forma de Disminuir la Brecha Tecnológica
(Global Awareness Society International (Pensilvania), 2017) Fonseca Solano, Pedro; Hernández Ruiz, Irene
Resumen. En este artículo, se presenta la experiencia de un grupo de docentes de la Escuela de Informática de la Universidad Nacional en acercar la robótica educativa a los jóvenes de primaria y secundaria en regiones dentro y fuera de la gran área metropolitana de Costa Rica. Actualmente, esta unidad académica cuenta con 30 equipos de robots Lego NXT MINDSTORMS donados1 en el año 2012 por parte de la compañía Lego de Dinamarca. Con estos equipos se trabajó con grupos del curso Fundamentos de Informática para mejorar el aprendizaje en lenguajes de programación. Sin embargo, se presentaron solicitudes de colegios y escuelas interesadas en esta tecnología. De esta forma nace la iniciativa de docentes de la Escuela de Informática para fortalecer el área de extensión.
Experiencia de los estudiantes de primer año de la carrera de Ingeniería en Sistemas de Información sobre el uso de sistemas de control de versiones como mecanismo para el trabajo colaborativo
(Universidad Nacional (Costa Rica), 2020) Calvo Suárez, Jose Pablo; Hernández Ruiz, Irene
El presente trabajo da a conocer la percepción de los estudiantes de primer año de la Carrera de Ingeniería en Sistemas de Información de la Universidad Nacional de Costa Rica acerca de los respaldos de sus documentos y proyectos programados. Para ello, se elaboró un estudio exploratorio con los estudiantes de tres grupos del curso de Programación I, para un total de 78 estudiantes. Además, se da a conocer la experiencia en este curso de poner en práctica el uso de los sistemas de control de versiones con el fin de promover el desarrollo colaborativo y buenas prácticas de respaldo de información.
Free Software in Local Governments in Costa Rica: A Longitudinal Study
(IEEE Xplore, 2018) Mata, Francisco J.; Quesada Rosales, Ariella
This paper presents the results from a survey of local governments in Costa Rica regarding the use of free software and the limitations found for such type of software. This survey is part of a longitudinal study, which conducted a similar survey in 2012; therefore, the results from the present survey are compared with the previous one to determine changes across time.
Implementación de una infraestructura de microservicios con contenedores
(Editorial Universidad Nacional de Alcalá, 2019) Calvo Suárez, Jose Pablo
La arquitectura de microservicios es un enfoque de desarrollo de software moderno que permite diseñar aplicaciones en la que cada componente, denominado servicio, se desarrolla e implementa de manera independiente, en lugar de utilizar un patrón monolítico. Estos servicios se encuentran interconectados entre sí, aunque cada uno opera de forma separada, lo que implica que en el caso de fallo de alguno de los módulos no se afecte la operación de otros componentes de la aplicación. Una de las tecnologías utilizadas en este tipo de infraestructura son los contenedores, que agrupan un conjunto de herramientas necesarias para proporcionar un ambiente de ejecución adecuado para las aplicaciones.

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