Search results for "Systems architecture"
showing 10 items of 227 documents
GPCALMA: A Grid-based tool for mammographic screening
2005
The next generation of High Energy Physics (HEP) experiments requires a GRID approach to a distributed computing system and the associated data management: the key concept is the Virtual Organisation (VO), a group of distributed users with a common goal and the will to share their resources. A similar approach is being applied to a group of Hospitals which joined the GPCALMA project (Grid Platform for Computer Assisted Library for MAmmography), which will allow common screening programs for early diagnosis of breast and, in the future, lung cancer. HEP techniques come into play in writing the application code, which makes use of neural networks for the image analysis and proved to be useful…
Joint Radio and Computational Resource Allocation in IoT Fog Computing
2018
The current cloud-based Internet-of-Things (IoT) model has revealed great potential in offering storage and computing services to the IoT users. Fog computing, as an emerging paradigm to complement the cloud computing platform, has been proposed to extend the IoT role to the edge of the network. With fog computing, service providers can exchange the control signals with the users for specific task requirements, and offload users’ delay-sensitive tasks directly to the widely distributed fog nodes at the network edge, and thus improving user experience. So far, most existing works have focused on either the radio or computational resource allocation in the fog computing. In this work, we inve…
PMG-pro: A model-driven method for the development of service-based applications in a heterogenous services environment
2010
This paper presents PMG-pro (present, model, generate and provide), a development method of service-based applications. With PMG-pro, the composition of heterogeneous pre-made services is done at model levels and thereby different executable software systems for different target platforms can be generated automatically. To illustrate the method, we present a case study of developing a service-based application in a smart home environment.
A Web-Based Coordination Infrastructure for Grid Collective Services
2004
Virtual Organizations (VO) consisting of heterogeneous institutions and individuals that share resources dynamically and in a coordinated way to support collaborative problem-solving are emerging in many fields. Consequently, new types of distributed infrastructures known as Grids have been proposed to cope with these new sharing requirements. Grids offer sets of collective services to support collaborative tasks which are distributed in nature and need asynchronous communication. Existing approaches to this problem lack of flexibility, adaptability and are tightly bound to the collective service that is provided. We present here a generic event model to build collective services that requi…
Harnessing ICT to develop community and identity: a model for academic departments
2006
Universities have been early adopters of Information and Communication Technologies (ICT). However, does availability imply use? How is ICT being used by academic departments? This article addresses these questions, and discusses the use of ICT to support research, instruction and service, but more specifically, the use of ICT to enhance a sense of identity and community across all members of a department. The authors' observations of university departments across the Atlantic reveal very limited uses of ICT. A democratic web-based academic departmental community model is proposed to assist in the strengthening of departmental identity and community as well as advancing its mission. Concept…
Evolving e-government benchmarking to better cover technology development and emerging societal needs
2012
Many international e-government benchmarks seek to measure progress towards various versions of a digital society, and in this endeavor include a component of e-government. But because comparable international e-government data are scarce, most reports rely on the United Nations E-Government Development Index, specifically its Online Service Index as a benchmark. However, this assessment only captures national level initiatives at a broad level and does not link evaluation to outcomes and impacts, i.e. e-government performance relative to investment.This paper briefly reviews the current UN framework and assesses how it can evolve to meet new demands, such as calls to better connect investm…
A service-based recommendation system to assist decision making in a small and medium company
2020
Collaboration and resource sharing have attracted a great interest among companies. Our contribution relates to this context, providing a decision-making support for companies. We propose a platform to facilitate resource sharing between collaborative companies, through a recommendation system. This system provides similar services that respond to a company’s needs. The approach presented in this paper includes the choice of a representation model for the services as well as the selection of an appropriate measure of similarity. This latter is mainly based on a comparative study of three measures of similarity using several performance evaluation measures. In order to evaluate our approach,…
A Context Aware Learning Application for Communities of Service Technicians
2016
The gathering of knowledge and competences needed to accomplish work related tasks is carried out in several ways. It can be done, planned in the long term to brace oneself for a new area of responsibility or in the short term to prepare for a concrete forthcoming task or while working on a task. The latter two happen quite often at the workplace. In this paper, we present a context aware mobile application supporting workplace learning of service technicians working at different locations including customer service. The originality of the presented application lies in the combination of the question a answering concept with the microlearning concept and in the context awareness of the appl…
Multiobjective service restoration in distribution networks using an evolutionary approach and fuzzy sets
2000
Abstract In this article, the service restoration (SR) problem in electrical distribution networks is dealt with using an evolutionary strategy (ES) with a fuzzy definition of the conflicting objectives. The normal operation status allows the remote control of tie-switches, of capacitor banks and load connection. When a permanent fault occurs, the same remote control actions can be performed with the aim of restoring the service in the concerned areas. The status of these remotely controllable elements is the boolean optimisation variables for the SR problem. Besides this, here the SR problem is dealt with in a multiple objectives (MO) formulation. Indeed, the power losses’ term is consider…
Design and validation of an evaluation questionnaire of clinical supervision
2018
Resumen basado en el de la publicación Título, resumen y palabras clave también en español e inglés Disponible la versión en español La supervisión clínica en medicina es una modalidad de enseñanza en el servicio que persigue como fin la práctica independiente de la profesión médica. En la supervisión clínica el profesor asume una función de modelador del desempeño de los estudiantes en un contexto de práctica profesional real. El objetivo es reportar el proceso de investigación que permitió desarrollar un cuestionario de evaluación formativa de la supervisión clínica con base en la opinión de los estudiantes. El método consistió en tres estudios empíricos: (1) un proceso de exploración del…