A SCENARIO OF MEDIA AWARENESS FOR SOCIAL NETWORKING

The term media is derived from Medium, which means carrier or mode. Media denotes an item specifically designed to reach a large audience or viewers. The term was first used with the advent of newspapers and magazines. However, with the passage of time, the term broadened by the inventions of radio, TV, cinemas and Internet. Tools for social networking and social awareness are developing rapidly and evolving continuously. They are gaining popularity in a growing number of professional as well as personal activities, including scholarly research. There are social awareness tools for science researchers that facilitate collaboration, help manage references, and offer options for presenting findings in new ways.This paper discusses those tools. Evaluating and understanding their functionalities requires effort, and scientists can be reluctant to invest the necessary time to learn to use and populate them on their own. This suggests that an important role for librarians is to evaluate the many social awareness tools available, to recommend the ones that are best suited to each researcher's needs, and to help researchers use those tools effectively.In the world of today, media has become almost as necessary as food and clothing. It is true that media is playing an outstanding role in strengthening the society. Its duty is to inform, educate and entertain the people. It helps us to know current situation around the world. The media has a strong social and cultural impact upon society. Because of its inherent ability to reach large number of public, it is widely used to convey message to build public opinion and awareness

Asymmetric Information Issues and Solutions for the Broker Executing SLA-based Workflows

In the business Grid environment, the user should ask the broker to execute the workflow for him and then pays the broker for the workflow execution service. As the sub-jobs of the workflow must be distributed over many Grid resource providers to ensure the QoS, the broker knows about all aspects of all service providers while it is difficult for user to have this information. Thus, there is an asymmetric information situation. The asymmetric information may bring a negative effect to the broker. This paper will analyze the asymmetric information issues and propose possible solutions to solve the problem

Designing a Resource Broker for Heterogeneous Grids

Grids provide uniform access to aggregations of heterogeneous resources and services such as computers, networks and storage owned by multiple organizations. However, such a dynamic environment poses many challenges for application composition and deployment. In this paper, we present the design of the Gridbus Grid resource broker that allows users to create applications and specify different objectives through different interfaces without having to deal with the complexity of Grid infrastructure. We present the unique requirements that motivated our design and discuss how these provide flexibility in extending the functionality of the broker to support different low-level middlewares and user interfaces. We evaluate the broker with different job profiles and Grid middleware and conclude with the lessons learnt from our development experience.Comment: 26 pages, 15 figure

Gerência de reservas de recursos e capacidades para a grade

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência da Computação.Este trabalho apresenta um estudo da gerência de reservas de recursos de Grade. Reservas são fundamentais para QoS em Grades. São propostos uma arquitetura onde usuários, gerenciador de reservas e gerenciadores de recursos são entidades separadas e que se relacionam, e um modelo de representação de recursos e reservas para escalonamento de reservas, baseado em empacotamento em ?ta. São trabalhados quatro requisitos necessários para uma gerência adequada de reservas de recursos: abrangência, ?exibilidade, e?ciência e utilização dos recursos. A solução proposta é ?exível o bastante para suportar reservas imediatas, antecipadas e sob-demanda, e relaxamento. É também abrangente o bastante para suportar diversos recursos, por meio de reservas de um recurso, de múltiplos recursos simultaneamente, e de parte da capacidade de um recurso. São também propostos três algoritmos de escalonamento de reservas

Élaboration d'un intergiciel pour relier les instruments aux grids

Les logiciels Grid sont en train de devenir une partie intégrale de la science électronique puisque la science moderne a besoin d'une grande capacité de calcul et une grande base de données d'information. Afin d'avoir des logiciels Grid capables de s'intégrer avec la science d'aujourd'hui, il faut que les instruments de mesure soient accessibles et représentés grâce à des intergiciels Grid de façon à ce qu'ils fassent partie de la Grid. Ce mémoire présente un résumé de la technologie des Grids, la conception du modèle et l'implémentation initiale de l'intergiciel appelé Grid Resource Instrument Model (GRIM) bâti à l'aide du WSRF pour les instruments et capteurs et inspiré par les standards IEEE1451, SensorML et TML. Le résultat de cette recherche est un intergiciel qui peut être utilisé par des applications Grid à des fins telles la planification et partage de laboratoires, le contrôle à distance d'instruments et la surveillance de capteurs