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The drastic increase in the commodity computer and network performance for the last generation has a resultant of faster hardware and more sophisticated software. But, the supercomputers of the current generation are still incapable of solving the current problems in the field of science, engineering, and business. This problems arises as a single machine cannot facilitate the availability of various...
Cloud computing has materialized as a new platform in the field of Computer Science. Its focus is on providing different facilities through its flexible infrastructure. With its vast capabilities, the cloud has expanded itself into various applications. In this paper, we have surveyed 15 papers on cloud computing; analyzing its history, development and future aspects. Our paper summarizes how the...
The long-dreamed vision of “computing as a utility” has finally taken shape in the form of cloud computing. This paradigm shift is the biggest buzz in today's computer world. It can be thought of an evolution of existing technologies rather than a revolution. The basic requirements of cloud are to meet the various needs of enterprise organizations such as scalability, adaptability, extensibility and...
The SBGrid Science Portal provides multi-modal access to computational infrastructure, data storage, and data analysis tools for the structural biology community. It incorporates features not previously seen in cyberinfrastructure science gateways. It enables researchers to securely share a computational study area, including large volumes of data and active computational workflows. A rich identity...
Semantic grid computing provides a shared computing environment with geographically distributed resources. These resources status changes dynamically and the type of applications to be executed also changes in time. In this paper, we proposed an adaptive mechanism in the semantic grid environment to reduce the efforts to configure and enact application workflows. Some applications were used to describe...
Cloud Computing is catching more attention around the world with its excellent features in providing the services and advantages in economy both for the end-users and Cloud providers. However, due to lack of enough resources, Cloud vendors currently can only provide general resources and services, like computing as a service but not suitable for research on specific domain. Grid Computing, on the...
Replica management has become a hot research topic in data grid, It improves the availability and fault tolerant of data in grid computing environment. Based on the deep research on the mainstream replica management technology in traditional data grid, we propose a dynamic replica management strategy. Our replica management strategy consists of the creation method of dynamic replica that can automatically...
Ontology databases in Semantic Grid can grow very large making it more complex and difficult to manage. Sub-ontology extraction in compliance with the user requirements paves the way for sub-ontology reuse in sub-ontology/ontology tailoring. As new developments and discoveries are unleashed, or when sub-ontology will be reused, the need to update the extracted sub-ontology is deemed necessary. In...
Diagnosis of students with learning disabilities has long been a difficult issue as it requires extensive man power and takes a long time. Through genetic algorithm based feature selection method and genetic based parameters optimization, artificial neural network (ANN) classifier has proven to be a good predictor to the diagnosis of students with learning disabilities. In this study, we keep focusing...
Though water pollution control and prevention technologies have made a great progress, most polluting enterprises even have never heard of them, not to mention use them. So we design an technologies sharing model based on information Grid, and focus our discussion on the process of searching and invoking the wanted technologies with mobile agents.
In dynamic grid environment, distribute a large number of different types of services and resources. F fast and accurate resource and service discovery, this article proposes a new structured Gossip messages spread algorithm, called S-Gossip, this algorithm has good redundancy and completeness. We describes in detail the implementation of the algorithm and protocol, and on this basis, the establishment...
Recently, Grid computing activities in Asia-Pacific have been drawn attention, includes in high learning education institutes in Malaysia. Many university and institute in Malaysia are started to build their campus grid infrastructure. One of the main problems that most institution faced when deploying campus grid is interconnectivity between cluster/grid sites. Thanks to EGEE gLite middleware project...
Grid system is a promising solution for sharing distributed resources of registered participants to perform tasks whose demands may exceed the capacity of individual participating organization. However, the collaborative aspect of Grids is still underdeveloped as they lack features and mechanisms for human interaction and collaboration. This paper presents the design and development of a prototype...
e-science and e-research is about supporting collaborations especially those that cross administrative boundaries. Typically this is achieved through establishing virtual organizations (VOs) where several institutions and individuals wish to contribute resources for their mutual interest, e.g. to address a given research topic. VOs can be fluid in nature and any individual/cooperating entity may in...
Applying grid technology to early warning and emergency management of city operation and development will greatly improve the reliability of city operation and development. There are three levels in mechanism of grid-based early warning and emergency management mechanism: hardware and the resource database, Grid server system and users' portal. The appliance of the Mechanism in a section of Shanghai...
The convergence between Web services and grid computing became possible the integration of distributed services, providing the use of sharing and coordinated resources on the network. In this environment, the purpose of a Metascheduler would improve the performance, availability and scalability of the resources. In this paper, we present a Metascheduler framework aiming QoS provision in Web services...
A spatial data access control model in grid environment was proposed base on Globus Security Infrastructure (GSI). Firstly, A spatial datasets sharing framework was built up by Monitor and Discover Service (MDS), and then a common control model was proposed to realize spatial data access control. In this model, every user was mapped to a given role, and every role had a unique digital certificate...
Cloud services that provide virtualized computational clusters present a dichotomy of systems management challenges, as the virtual clusters may be owned and administered by one entity, while the underlying physical fabric may belong to a different entity. On the physical fabric, scalable tools that ldquopushrdquo configuration changes and software updates to the compute nodes are effective, since...
Applying grid technology to ITSM of e-learning will greatly improve the reliability of e-learning. There are three levels in mechanism of grid-based ITSM mechanism: Hardware and the resource database, grid server system and userspsila portal. The appliance of the mechanism in an university is proven itpsilas efficiency.
A secure environment is a top-priority for all the forms of grid computing. To establish trust, traditional grids use various methods, mostly centrally oriented ones, such as certification authorities, VO management servers or credential pools. An ad hoc grid environment is characterized by the absence of a central trusted authority; therefore collaborating entities must establish and maintain a trust...
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