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The paper develops a Gaussian Syntax-analyzer using ANTLR. The Gaussian Syntax-analyzer is tested by an example, and builds the AST. Then we examine the analysis process of the example through parser tree generated by ANTLRWorks. The Gaussian Syntax-analyzer's design process is helpful for developing analyzer of other chemical software. At the same time, the paper also provides one kind of syntactical...
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...
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