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MDX2SPARQL: Semantic query mapping of OLAP query language to SPARQL

机译:MDX2SPARQL:OLAP查询语言到SPARQL的语义查询映射

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摘要

Currently, the amount of statistical linked data available on the Web is exponentially increasing. The need to exploit these data for analytical purposes becomes a priority. Online Analytical Processing (OLAP) presents a powerful solution for such task. However, OLAP systems require the implementation of Extract, Transform and Load (ETL) process. Furthermore, carrying out ETL on web data is time and materialization space consuming. This paper discusses an approach for directly querying the web data stored in RDF format (Resource Description Framework) as part of an OLAP interface through a mapping between MDX (MultiDimensional eXpressions) and SPARQL (Simple Protocol and RDF Query Language) without any materialization. This work proposes a first architecture validated by some scenarios. The obtained results shows the effectiveness of our method.
机译:当前,Web上可用的统计链接数据的数量呈指数增长。出于分析目的而利用这些数据的需求成为当务之急。在线分析处理(OLAP)为此类任务提供了强大的解决方案。但是,OLAP系统需要实施提取,转换和加载(ETL)过程。此外,对Web数据执行ETL会浪费时间和物化空间。本文讨论了一种通过MDX(多维表达)和SPARQL(简单协议和RDF查询语言)之间的映射直接查询以RDAP格式存储的Web数据(资源描述框架)作为OLAP接口的一部分的方法,而无需实现。这项工作提出了通过某些方案验证的第一个体系结构。获得的结果表明了我们方法的有效性。

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