An Approach Towards Automatic Workflow Composition Through Information Retrieval
IDEAS(2011)
摘要
Understanding how to design, manage, and execute scienti fic workflows has become increasingly esoteric. Yet, despite the development of scientific workflow management systems, which have simplified workflow planning to some extent, a means to reduce the complexity of user interaction without forfeiting some robustness has been elusive. We believe that a keyword interface may be highly beneficial to common users in need of information which requires workflow planning and execution. In this paper, we describe a system that can automatically compose a set of relevant workflows, which may or may not have been previously defined by other users, given only a keyword query. We present a way to index data sets and Web services (utilized to compose work- flows in our system) on their ontological attributes. This ontology allows us to facilitate an IR-based workflow retrieval model. We conducted a case study in geoinformatics with a set of real geospatial Web services, data, and their meta-data annotations. our system was capable of answering six keyword queries with fast search times (2:16ms on average) and relatively high Top-N precision values: 78%, 77.3%, and 76.2% for the Top 3, 5, and 10 retrieved workflows respectively.
更多查看译文
关键词
Scientific workflows,service composition
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络