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In e-Science environment researchers intend to be informed of events related with their works, including the current states of computing services, service workload and so on. So it is necessary to provide a Publish/Subscribe System in e-Science environment. Also there are some issues in Broker Management in Publish/Subscribe System, such as the abnormal breakdown and the overload of broker. An effective...
In e-science environment researchers can submit complex tasks as scientific workflows. However, because the network may be blocked or even interrupted sometimes, it can hinder the researchers to submit tasks, as well as the overload on the server. Additionally, many tasks submitted by researchers may use the same resources, which may result in the overload of the specific resources. Meanwhile, some...
In e-science environment researchers pay great attention to some events, such as the current states of computing services which related with their works and some new computing services. So we adopt the publish/subscribe system in e-science environment to satisfy the requirement. Broker management in publish/subscribe system is important because it affects directly the stability and robustness of the...
SWF, short for scientific workflow, has recently emerged as a paradigm for orchestrating large-scale e-Science applications. SWF specification connects workflow designer with workflow engine, which makes it act ass one of the key components in SWF systems. We adopted BPEL as the Gird-based SWF specification because of its potential benefits to promote SWF sharing and reproducibility. However, grid-based...
Scientists are increasingly using scientific workflow environment to manage large data sets and execute experiments on distributed resources. Scientific workflows have become an important mechanism for scientists to combine scientific data management, analysis, simulation, and visualization tasks. However, most of the environments don't fully hide the complexity of the underlying orchestration language...
Before the emergence of the concept e-science, applications and resources in research and scientific areas have existed as grid applications. In order to use the already existing applications and resources efficiently in e-science, an urgent problem to the "grid people" is how to integrate those heritage grid systems as the grid-based applications. There are many grid applications are well...
Recently, grid computing related researches have flourished in China. e-Science, which aims to create an enabling grid-based infrastructure appropriate for the science drivers, also has gradually played an important role in scientific communities. Initially, e-Science was always interlaced with grid directly, which resulted in the maintenance of e-Science applications involved in embarrassment. Therefore,...
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