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Context-Aware Recommender System (CARS) aims to not only recommend services similar to those already rated with the highest score, but also provide opportunities for exploring the important role of temporal, spatial and social contexts for personalized web services recommendation. A key step for temporal-based CARS methods is to explore the time decay process of past invocation records to make the...
Context-Aware Recommender System aims to recommend items not only similar to those already rated with the highest score, but also that could combine the contextual information with the recommendation process. Existing context-aware Web services recommendation methods directly use context as a "filter" to discard services that may conflict with the current user's preference. However, the...
Traditional virtual screening in the grid needs chemists to upload small molecule files and collect the results manually, which cannot implement docking and collection of results automatically. This caused heavy workload to chemists. In this paper, we took advantage of Hadoop platform in the massive data storage. We stored and managed small molecule files and docking results files using HDFS. In addition,...
In dynamic and heterogeneous Grid environments, the majority of the scientific applications require to be expressed as complex workflows which assemble multiple Web Services to implement complex scientific tasks. In addition, most workflow management systems are bound to concrete services distributed in different physical domains or concrete environments. Therefore, scientists still need to discover...
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...
Chemical research is an exploring and improving process to obtain the preferable experiment result. The complex and frequently changing research in traditional way is time-consuming, expending energy and repetitive work. The emergence of scientific workflow congregating orchestrating distributed resources and scientific instruments on the Grid environment possibly solves these problems in chemical...
Scientific workflows are becoming increasingly important as a mechanism for orchestrating distributed resources such as computational devices, data, applications, and scientific instruments on the grid environment. BPEL is generally accepted as a de-facto standard for web-services composition. However, the lack of generic graphical interfaces that abstract the technical details for domain scientists...
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