本体集成的一种新方法和实用算法A Novel Approach and Practical Algorithms for Ontology Integration |
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课程网址: | http://videolectures.net/iswc2018_stoilos_novel_apporach_practica... |
主讲教师: | Giorgos Stoilos |
开课单位: | 牛津大学计算机实验室 |
开课时间: | 2018-11-22 |
课程语种: | 英语 |
中文简介: | 今天,大量的知识和数据都是使用语义Web标准分发的。特别是在(生物)医学领域,SNOMED、NCI、FMA等多个源以OWL本体论的形式分布。可以将这些知识整合起来,以创建一个大型医学知识库。然而,一个重要的问题是,这些本体的结构可能会有很大的不同,因此,天真地将它们整合起来可能会导致其原始结构的不一致或变化,这可能会影响应用程序。在本文中,我们提出了一种集成独立开发的本体的框架和新方法。从应用程序可能已经使用的初始种子本体开始,使用新的源来迭代地丰富和扩展种子本体。为了处理结构不兼容性,我们提出了一种基于映射修复和对齐保守性的新的细粒度方法,将其形式化,并提供了一种精确、近似但实用的算法。我们的框架已经用于集成许多医学本体论,并支持巴比伦健康提供的真实世界医疗服务。最后,我们还进行了实验评估,并与最先进的本体集成系统进行了比较,这些系统考虑了集成本体的结构和一致性,获得了令人鼓舞的结果。 |
课程简介: | Today a wealth of knowledge and data are distributed using Semantic Web standards. Especially in the (bio)medical several sources like SNOMED, NCI, FMA, and more are distributed in the form of OWL ontologies. These can be aligned and integrated in order to create one large medical Knowledge Base. However, an important issue is that the structure of these ontologies may be profoundly different hence naively integrating them can lead to incoherences or changes in their original structure which may affect applications. In this paper we present a framework and novel approach for integrating independently developed ontologies. Starting from an initial seed ontology which may already be in use by an application, new sources are used to iteratively enrich and extend the seed one. To deal with structural incompatibilities we present a novel fine-grained approach which is based on mapping repair and alignment conservativity, formalise it and provide an exact as well as approximate but practical algorithms. Our framework has already been used to integrate a number of medical ontologies and support real-world healthcare services provided by babylon health. Finally, we also perform an experimental evaluation and compare with state-of-the-art ontology integration systems that take into account the structure and coherency of the integrated ontologies obtaining encouraging results. |
关 键 词: | 语义Web标准; 本体集成的一种新方法; 实用算法 |
课程来源: | 视频讲座网 |
数据采集: | 2022-12-15:cyh |
最后编审: | 2023-05-15:cyh |
阅读次数: | 3 |