可扩展的接地连接查询评估大量的知识基础和表达Scalable Grounded Conjunctive Query Evaluation over Large and Expressive Knowledge Bases |
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课程网址: | http://videolectures.net/iswc08_fokoue_scqe/ |
主讲教师: | Achille Fokoue |
开课单位: | IBM公司 |
开课时间: | 2008-11-24 |
课程语种: | 英语 |
中文简介: | 在最坏的情况下, 通过 owl-dl 本体回答接地的连接查询是很棘手的, 但我们提出了一些新的技术, 可以有效地查询二次存储中的大型表达知识库。特别是, 我们表明, 我们可以有效地回答接地的连接查询, 而无需为大型 atbox 构建一个完整的完成林 (与最先进的制表推理方式不同)。相反, 我们依靠的是大幅减少的 apbox 摘要的完成林。我们以多达4500万的断言在 atbox 中演示了这种方法的有效性。 |
课程简介: | Grounded conjunctive query answering over OWL-DL ontologies is intractable in the worst case, but we present novel techniques which allow for efficient querying of large expressive knowledge bases in secondary storage. In particular, we show that we can effectively answer grounded conjunctive queries without building a full completion forest for a large Abox (unlike state of the art tableau reasoners). Instead we rely on the completion forest of a dramatically reduced summary of the Abox. We demonstrate the effectiveness of this approach in Aboxes with up to 45 million assertions. |
关 键 词: | 二级存储知识库; 高效表达; 艺术画面推理状态 |
课程来源: | 视频讲座网 |
最后编审: | 2020-07-29:yumf |
阅读次数: | 51 |