Encontrado(s) 8962 resultado(s)
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Service Orchestration on the Internet of Things

  • Pascual Espada, Jordán
On July 27, 2010, Jordán Pascual Espada defended his Master’s thesis at Oviedo University (Spain), titled: “Service Orchestration on the internet of things”. This Master’s thesis is the final part of the Web Engineering Official Research Master belonging to the European Higher Education Area. Jordán Pascual Espada defended his dissertation in a publicly open presentation held in the School of Computer Engineering at Oviedo University, and was able to comment on every question raised by his committee and the audience. The master’s thesis was supervised by his advisors, Juan Manuel Cueva Lovelle and Oscar Sanjuán Martínez. The thesis has been read and approved by his thesis committee, receiving the highest rating.

A Client-Server System for Ubiquitous Video Service

  • Nossenson, Ronit
  • Yudilevich, Orit
  • Marlowitz, Omer
In this work we introduce a simple client-server system architecture and algorithms for ubiquitous live video and VOD service support. The main features of the system are: efficient usage of network resources, emphasis on user personalization, and ease of implementation. The system supports many continuous service requirements such as QoS provision, user mobility between networks and between different communication devices, and simultaneous usage of a device by a number of users.

Design and Complex Dynamics of Potra–Pták-Type Optimal Methods for Solving Nonlinear Equations and Its Applications

  • Chand, Prem Bahadur
  • Chicharro, Francisco Israel (1)
  • Garrido, Neus
  • Jain, Pankaj
In this paper, using the idea of weight functions on the Potra–Pták method, an optimal fourth order method, a non optimal sixth order method, and a family of optimal eighth order methods are proposed. These methods are tested on some numerical examples, and the results are compared with some known methods of the corresponding order. It is proved that the results obtained from the proposed methods are compatible with other methods. The proposed methods are tested on some problems related to engineering and science. Furthermore, applying these methods on quadratic and cubic polynomials, their stability is analyzed by means of their basins of attraction.

Generalized High-Order Classes for Solving Nonlinear Systems and Their Applications

  • Chicharro, Francisco Israel (1)
  • Cordero, Alicia
  • Garrido, Neus
  • Torregrosa, Juan Ramón
A generalized high-order class for approximating the solution of nonlinear systems of equations is introduced. First, from a fourth-order iterative family for solving nonlinear equations, we propose an extension to nonlinear systems of equations holding the same order of convergence but replacing the Jacobian by a divided difference in the weight functions for systems. The proposed GH family of methods is designed from this fourth-order family using both the composition and the weight functions technique. The resulting family has order of convergence 9. The performance of a particular iterative method of both families is analyzed for solving different test systems and also for the Fisher’s problem, showing the good performance of the new methods.

The Enhancement of Academic Performance in Online Environments

  • Chicharro, Francisco Israel (1)
  • Giménez, Elena (1)
  • Sarría, Íñigo (1)
Distance education has been gaining popularity for the last years. The proficiency in online environments of both learners and teachers explains the success of this methodology. An evaluation of graduate students’ performance within numerical analysis is discussed. In order to improve the marks obtained by the students, specific actions have been performed over the years and data from different classes has been analyzed using statistical tools. The results show that the actions proposed seemed to help the students in their learning process.

Semantic Brokering of Multimedia Contents for Smart Delivery of Ubiquitous Services in Pervasive Environments

  • Amato, Alba
  • Di Martino, Beniamino
  • Venticinque, Salvatore
With the proliferation of modern mobile devices having the capability to interact each other and with the environment in a transparent manner, there is an increase in the development of those applications that are specifically designed for pervasive and ubiquitous environments. Those applications are able to provide a service of interest for the user that depends on context information, such as the user's position, his preferences, the capability of the device and its available resources. Services have to respond in a rational way in many different situations choosing the actions with the best expected result by the user, so making environment not only more connected and efficient, but smarter. Here we present a semantic framework that provides the technology for the development of intelligent, context aware services and their delivery in pervasive and ubiquitous environments.

Dynamic, ecological, accessible and 3D Virtual Worlds-based Libraries using OpenSim and Sloodle along with mobile location and NFC for checking in

  • González-Crespo, Rubén
  • Ríos Aguilar, Sergio
  • Ferro Escobar, Roberto
  • Torres, Nicolás
This paper proposes the implementation of a 3D virtual library, using open platforms such as OpenSimulator and Sloodle, applied to the integration of virtual learning environments. It also proposes their application to the creation of open libraries to share and disseminate the new dynamic nature of knowledge, in the understanding that 3D virtual worlds may contribute to the future of libraries as part of green initiatives to achieve an ecologic and sustainable planet.

Model Innovation of Process Based on the Standard e-commerce International GS1

  • Tarazona Bermúdez, Giovanny Mauricio
  • Rodríguez Rojas, Luz Andrea
  • B Pelayo, Cristina
  • Sanjuan Martínez, Oscar
This article focuses on the design and characterization of management model for MSMEs, based on e-commerce and the GS1 international e-com standard. The first part contextualizes electronic commerce and its impact on domestic industry, and briefly describes the B2B e-commerce model used in Colombia. Subsequently the first step to apply the model is presented, which corresponds to the design of a diagnostic methodology that evaluates the technological, technical, commercial and administrative aspects of the organization; after that are exposed the results of the pilot experiment performed on a MSME from Bogota, and finally will be explained the procedures for the implementation of the model.

Comparativa de técnicas para el descubrimiento de conocimiento aplicadas al comportamiento de producción científica

  • Galán-Mena, Jorge Andrés
The growing scientific activity in the research units of the Institutes of Higher Education (HEI) has generated many indicators. These indicators are related to scientific products and researcher profiles that are stored in third party Repository Servers (RS). This work presents an approach to contrast two knowledge discovery techniques for the formation of researcher profiles which a HEI has, simplifying the categorization of researchers from multiple indicators of scientific production, obtaining the information from the RS of Scopus. The proposed techniques are based on the same information but differ in the conformation of the dataset, using traditional methods with tables and modelling of knowledge by means of semantic schemes., La creciente actividad científica en las unidades de investigación de los Institutos de Educación Superior (IES) ha generado una gran cantidad de indicadores. Estos indicadores tienen relación con los productos científicos y perfiles de investigadores que son almacenados en Servidores de Repositorios (SDR) de terceros. En este trabajo se presenta una aproximación para contrastar dos técnicas de descubrimiento de conocimiento para la formación de perfiles de investigadores con los que cuenta una IES, ello permite simplificar la categorización de los investigadores a partir de múltiples indicadores de producción científica, obteniendo la información del SDR de Scopus. Las técnicas propuestas parten de la misma información, pero difieren en la conformación del dataset, mediante el uso de métodos tradicionales con tablas y modelado del conocimiento por medio de esquemas semánticos.

Sistema de información gerencial de mercado para instituciones financieras ecuatorianas

  • León-Morocho, Jorge Luis
In Ecuador, more than 20 years ago, he experienced an episode known as the "Feriado Bancario", where the banks froze the deposits of the clients by passing them on to the state in order to support those who were at risk of bankruptcy, all of which led him to dollarization which affected the ecuadorian population, for that reason there are public entities that supervise and control financial institutions. The control entities of Ecuador are the "Superintendencia de bancos (SB)" and the "Superintendencia de economía popular y solidaria (SEPS)". Each institution provides data structures to these entities, so that they can monitor the national economy, this information is free so that the same institutions and even private financial companies can download them in archives and review the behavior of the national market. The final work of master was created as a software development project whose objective is to create a centralized repository of these data to be visualized through a system called Management Information System, in such a way that it allows a financial institution to find relevant information in one place. It was based on 4 phases that are ex-traction, storage, processing and visualization. The information that is obtained from the periodical and from different financial institutions, it is expected that the data will grow. The methodology of software development based on the unified process and UML modeling was applied. A master / slave architecture design was developed for the back-end and front-end, the data collection times were evaluated, the acceptance of the users in terms of ease and functionality. The Ecuadorian financial market management information system created is an effective tool for the control of a financial institution, providing information that helps managers to make decisions within the market and is a contribution to the economy, through tics that are booming and that are free to use, En Ecuador hace más de 20 años vivió un episodio conocido como el Feriado Bancario, en donde los Bancos congelaron los depósitos de los clientes pasándolos a manos del estado con el fin de apoyar a aquellos que estaban en riesgo de quebrar, todo esto le condujo a la dolarización lo cual afectó a la población ecuatoriana, por esa razón existen entidades públicas que supervisan y controlan a las instituciones financieras. Los entes de control del Ecuador son la “Superintendencia de Bancos (SB)” y la “Superintendencia de Economía Popular y Solidaria (SEPS)”. Cada institución provee estructuras de datos a estos entes, para que puedan monitorizar la economía nacional, esta información se encuentra libre para que las mismas instituciones e incluso empresas financieras privadas puedan descargárselas en archivos y revisar el comportamiento del mercado nacional. Con esto en mente, se planteó el TFM de tipo desarrollo de software cuyo objetivo es crear un repositorio centralizado de donde se alimente el Sistema de Información Gerencial, de tal forma que permita a una institución financiera encontrar en un solo lugar información relevante. Se basó en 4 fases que son extracción, almacenamiento, procesamiento y visualización. La información que se obtiene es periódica y de distintas instituciones financieras, se prevé que los datos crezcan. Se aplicó la metodología de desarrollo de software basado en el proceso unificado y con el modelado UML. Se elaboró un diseño de arquitectura master/esclavo para el back-end y front-end, se evaluó los tiempos de recolección de los datos, la aceptación de los usuarios en cuanto a la facilidad y funcionalidad. El Sistema de información gerencial del mercado financiero ecuatoriano creado resulta una herramienta eficaz para el control de una institución financiera, aportando información que ayude a las gerencias a tomar decisiones dentro del mercado y sean un aporte a la economía nacional, mediante tics que están en auge y que son de libre uso.

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