249 research outputs found
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Non-linear modeling for low and high power microwave transistors
No full textNew generation of communications systems will demand the use of low power devices in mesh configuration. This work presents a new characterization procedure for those devices in order to predict their behaviour before the implementation saving time and cost.Doble- Cieg
Developing a Holistic Understanding of Systems and Algorithms through Research Papers
No full textEven though a computer science degree is unavoidably broken into semesters and courses, we always hope that our students form a holistic picture of the discipline by the time they graduate. Yet as educators, we do not have too many opportunities to make this point front and center for an extended period of time. This report es a well-defined portion of this problem: revealing conceptual connections between algorithmic courses (such as Discrete Math, Data Structures, Algorithms) and systems oriented courses (such as Organization, Computer Networks, Operating Systems, and Hardware) through the use of research papers. In particular, we provide a pedagogical framework as well as a set of carefully selected papers to crosscut our disciplinary space in a way that is orthogonal to conventional course design. This framework includes a paper taxonomy, strategies for covering topics that students are yet to encounter in upper level courses, strategies for reading and writing technical papers, three modules (one each for operating systems, networks, and architecture) that can be integrated into standard systems courses, and a new (optional) course template as a container for all of the listed elements. Since we have already tried these ideas once at the institution of the two leading authors, our report is rich with scaffolding suggestions as well.Trabajo de investigaciónDoble cieg
When the Robot Meets the Turtle: A Gentle Introduction to Algorithms and Functions
No full textEducators have long been trying to motivate students in their introductory programming courses. Games help students to practice formulas, facts and processes, motivating learning by adding fun. This work describes our experience in the use of Lightbot and the graphic library Turtle to introduce students to the concepts of algorithm and function. This approach has been implemented in two Universities in Arequipa. We present the assignments used in the first and second session of CS1. Our experience has shown us that students get a clear understanding of algorithm and functions that are later implemented with Python (Universidad La Salle) and Java (Universidad Nacional de San Agustin). We believe that the visual nature of games and the graphical component to teaching anything is more effective for students. Results were measured by students' perception in 2016.Doble- Cieg
A new graph-based approach for document similarity using concepts of non-rigid shapes
No full textMost methods used to compare text documents are based on the space vector model; however, this model does not capture the relations between words, which is considered necessary to make better comparisons. In this research, we propose a method based on the creation of graphs to get semantic relations between words and we adapt algorithms of the theory of non-rigid 3D model analysis.Doble- Cieg
El Irisiden: más allá de los límites razonables de la seguridad
No full textLa duda sobre si nos estamos acercando cada vez más al universo de Minority Report; un entorno dominado por los avances tecnológicos en el cual, la búsqueda de la seguridad más absoluta ha sacrificado algunos de nuestros derechos fundamentales parece ir encontrando una respuesta: Es el mundo que estamos creando.
Actualmente, la tecnología nos permite la utilización de diversas técnicas biométricas para identificar “sin papeles”, sino a través de los rasgos fisiológicos o de conducta del individuo, las que se han convertido en un método internacional de identificación cuya “globalización” trae consigo un replanteamiento de cuestiones no solamente éticas sino también jurídicas, que nos enfrenta a dos grandes disyuntivas: “Seguridad de todos versus libertad de cada uno” y “Verificación de Datos personales o identificación indiscriminada de las personas”.
Si bien en los últimos años se ha tornado en un proceso que complementaría la identificación electrónica, la Biometría, requiere de la intervención de muchos actores, estándares y normativas por lo que nos cuestionamos en torno a la posibilidad que tras la búsqueda de una seguridad física absoluta podamos generar una inseguridad jurídica total. Cuestiones ambas, que nos llevan a adentrarnos en la Biometría Informática y sus aplicaciones.Doble- Cieg
A Behavior Tree-Based Model for Supporting the Analysis of Knowledge Transferred in Software R&D Teams
No full textSoftware R&D teams require proper forms of representing knowledge at carrying out software engineering
processes and researches. In this context, transfer of knowledge becomes a dynamic process because team
members participating in the process acquire, communicate and integrate knowledge from different
sources. In this paper, a behavior tree-based model is presented for representing knowledge generated from
research and development activities. Through structured nodes representing pieces of knowledge, it is
possible to identify key points of new challenges, concerns, issues, gaps, etc., and shed lights on new
insights and knowledge of importance to team members, contributing to improve and provide solutions to
the domain analyzed.Doble- Cieg
Framework Based on Aggregated Graphs for Analysis of Architectural Conformance from Source Code
No full textAgile approaches consider the software architecture as an emergent feature that can have an intended structure but could be not documented. To controlling the architectural erosion, an architectural conformance analysis could be performed, but considering the source code as a primordial input. This work presents a framework that supports the development of applications for architectural conformance analysis based on rules and measures. The framework uses aggregated graphs, MapReduce operations, and an external DSL; and has been evaluated over studies related to software architecture, and projects like the test suite of Red Hat WildFly and WordPress for Android. The gotten results favor the use of the framework for executing a continuous architectural analysis from source code.Doble- Cieg
Identification of architectural technical debt: An analysis based on naming patterns
No full textHasty software development can produce immediate implementations with source code unnecessarily complex and hardly readable. These small kinds of software decay generate a technical debt that could be big enough to seriously affect future maintenance activities. This work presents an analysis technique for identifying architectural technical debt related to non-uniformity of naming patterns; the technique is based on term frequency over package hierarchies. The proposal has been evaluated on projects of two popular organizations, Apache and Eclipse. The results have shown that most of the projects have frequent occurrences of the proposed naming patterns, and using a graph model and aggregated data could enable the elaboration of simple queries for debt identification. The technique has features that favor its applicability on emergent architectures and agile software development.Doble- Cieg
Use of Context for Recommending Code: an Approach Based on Frequent Pattern Mining
No full textDuring creating a class, several times a developer must be conscious of regularities that should be complied in order to satisfy an intended architectural design. This paper presents an approach for code recommendation, which apply concepts of frequent pattern mining to take advantage of the use of naming conventions and the organization of source code in software development. The proposal has been evaluated in projects of the organizations Apache and Eclipse. The results have shown that significant terms and regularities, in form of frequent relationships, could be mined. The approach is particular in the sense that it enables using naming patterns and package hierarchies as context for recommending code.Doble- Cieg
Modelado y Diagnóstico de Procesos de Ingeniería y Proyectos en una Empresa Minera: Una Experiencia BPMN-XP
No full textMuchas organizaciones gestionan y controlan sus
procesos de negocios para lograr una ventaja competitiva. Un
proceso de negocio puede involucrar múltiples participantes,
cuya coordinación puede ser compleja, difícil de administrar y de
controlar, por lo que notaciones gráficas como BPMN se han
popularizado. Una empresa peruana de gran minería debido a
problemas de atrasos e incumplimientos recurrentes en grandes
proyectos de ingeniería inició una iniciativa de modelado y
diagnóstico de su proceso. Este artículo describe el modelo
BPMN producido y su posterior diagnóstico, que combina
características transversales de proyectos de ingeniería con
especificidades propias de los proyectos mineros. El modelo fue
elaborado en forma iterativa, con la participación activa del
Administrador de Control Documentario del Area de Ingeniería
y Proyectos y la validación final de la Superintendencia de
Planeamiento y Control. El modelo describe los procesos
existentes en forma clara, estándar y completa. El modelo
permitió diagnosticar ineficiencias, identificando “cuellos de
botella” causados por a) roles con sobrecarga de tareas, b) subprocesos con exceso de tareas y largos tiempos, y c) falta de
alertas en algunas actividades. Si bien las experiencias exitosas en
el uso de BPMN son múltiples en la literatura, el objetivo
principal de este trabajo es describir la experiencia de la
aplicación de la metodología ágil eXtreme Programming (XP),
propia de proyectos de software, en el desarrollo de nuestro
trabajo.Doble- Cieg