基于本体的数据访问Ontology-based Data Access |
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课程网址: | http://videolectures.net/iswc07_lembo_oda/ |
主讲教师: | Domenico Lembo |
开课单位: | 罗马大学 |
开课时间: | 2008-01-31 |
课程语种: | 英语 |
中文简介: | 在本教程中,我们从理论和实践两个角度全面了解了基于本体的数据访问问题。我们解决了在这方面至关重要的几个问题,例如表达/效率权衡、查询处理、本体和数据层之间的阻抗不匹配以及多个数据源的集成。我们根据可追溯描述逻辑领域的最新研究成果提出了这些问题的解决方案,并且我们还提供了Quonto的“实践”经验,Quonto是一个基于本体的数据访问的最先进系统。 |
课程简介: | In this tutorial we provide a comprehensive understanding of the problem of ontology-based data access, from both the theoretical and the practical points of view. We address several problems that are crucial in this context, such as expressiveness/efficiency tradeoff, query processing, impedance mismatch between ontology and data levels, and integration of multiple data sources. We present solutions to these problems based on recent research results in the area of tractable Description Logics, and we provide also a ``hands-on'' experience with QuOnto, a state-of-the-art system for ontology-based data access. |
关 键 词: | 数据访问; 查询处理; 描述逻辑 |
课程来源: | 视频讲座网 |
最后编审: | 2019-12-05:lxf |
阅读次数: | 92 |