Wikidata is one of the most successful Semantic Web projects. Its underlying Wikibase data model departs from RDF with the inclusion of several features like qualifiers and references, built-in datatypes, etc. Those features are serialized to RDF for content negotiation, RDF dumps and in the SPARQL endpoint. Wikidata adopted the entity schemas namespace using the ShEx language to describe and validate the RDF serialization of Wikidata entities. In this paper we propose WShEx, a language inspired by ShEx that directly supports the Wikibase data model and can be used to describe and validate Wikibase entities. The paper presents a the abstract syntax and semantic of the WShEx language.
翻译:维基数据是最为成功的语义网络项目之一。维基数据库所依据的维基数据库数据模型与卢旺达国防军脱节,包括了限定词和参考、内置数据类型等若干特征。这些特征被序列到卢旺达国防军,用于内容谈判、卢旺达国防军倾弃场和SPARQL端点。维基数据采用实体系统名称空间,使用什叶派语言描述和验证卢旺达国防军对维基数据实体的序列化。在本文中,我们提议使用WShEx,这是由ShEx启发的一种语言,直接支持维基数据库数据模型,并可用于描述和验证维基数据库实体。本文介绍了WShEx语言的抽象语义和语义。