图 书 馆
论关联开放数据中时间信息的多样性和可用性On the Diversity and Availability of Temporal Information in Linked Open Data |
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| 课程网址: | http://videolectures.net/iswc2012_rula_linked_data/ |
| 主讲教师: | Anisa Rula |
| 开课单位: | 米兰大学 |
| 开课时间: | 2012-12-03 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | An increasing amount of data is published and consumed on the Web according to the Linked Data paradigm. In consideration of both publishers and consumers, the temporal dimension of data is important. In this paper we investigate the characterisation and availability of temporal information in Linked Data at large scale. Based on an abstract de nition of temporal information we conduct experiments to evaluate the availability of such information using the data from the 2011 Billion Triple Challenge (BTC) dataset. Focusing in particular on the representation of temporal meta-information, i.e., temporal information associated with RDF statements and graphs, we investigate the approaches proposed in the literature, performing both a quantitative and a qualitative analysis and proposing guidelines for data consumers and publishers. Our experiments show that the amount of temporal information available in the LOD cloud is still very small; several di erent models have been used on di erent datasets, with a prevalence of approaches based on the annotation of RDF documents. |
| 关 键 词: | 时间维度; 关联数据; 数据集 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-07-31：yumf |
| 阅读次数: | 42 |