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The paper puts forward a kind of strategy that makes use of small world model to discover to educate resources, mainly according to founded the model of educational resources based on grid community, the characteristics of the grid communities and educational resources distributes in the grid,. The paper analyzed the characteristics of small world model and the small world features that the education...
Service-oriented architecture builds software applications from large numbers of loosely coupled distributed services, while workflow technology coordinates these distributed services to achieve a shared task or goal. Scientific workflow is becoming researching hotspot along with the e-science and cyber-infrastructure applications, which run in the grid environment. Therefore, selection and scheduling...
According to the classification principles of educational information in LOM, and the characteristics of grid community and resource distribution in grid, on the basis of a proposed model of grid community based education resource, the brief paper puts forward constructing the concept of Equivalent grid community group, building the mechanism of resources-sharing and information-spreading between...
Buffer analysis is one of the most important GIS functions to take spatial analysis. Based on our experience on EO data parallel processing, we take buffer generation as an example to research how to accelerate the speed and scale of GIS operations. This paper analyzes the procedure of the original sequential algorithm, and then gives out the mechanism of the parallelization. As a result, it will...
Grid technology is a research hotspot nowadays. To apply grid technology to education resources management will maximize integration of existing education resources. Education resources can be managed effectively by using distributional management thought, which can change current status of the disorder about education resources management. In this paper, resource classification standard in LOM is...
The build of educational resources is the basis of e-education. Grid technology realizes the extensive sharing of educational resources. This paper, based on analyzing metadata standards of educational resources, takes LOM as the description of educational resources in grid. In addition, this paper uses grid resource description frame (RDF) to describe LOM formally, and builds a RDF model of LOM focused...
Grid is an environment of seamless and integrated sharing and collaboration. The heterogeneous, dynamic, various and autonomous characteristics of resources make grid resource discovery a challenging issue. Hierarchical grid computing environment (hierarchical grid for short) with many advantages is far and wide used. This paper introduces small-world cluster into hierarchical grid in which intra-cluster...
Recently, the Grid middleware provides almost functions in the style of Web service including Globus Toolkit, GOS, etc. Right now, the new Web Services are deployed manually into the Grid middleware containers and become effective after the containers are restarted. However, it is necessary to deploy the Web Services dynamically on the Grid nodes since the states of Grid environment are changing over...
The grid service has been used widely as a trend, and the scheduling algorithm for grid service has become a research focus. In this paper, a grid service scheduling architecture based on economic model (GSAEM) is proposed. The GSAEM introduces economic model into grid service scheduling, and deduces the optimal prices of grid service under every condition of resource constraints by marginal principle...
This paper analyzes grid resources organization, elaborates on the fundamental principles of the ant colony algorithm, and proposes a grid resource discovery method based on the ant colony algorithm. We consider users request ontology as ants, take search resource as food, and food source is the node of search target. The process of ants to find food is similar to the process of discovery grid resources.
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