RDF Data Model提供了一个简单却功能强大的工具，通过描述资源、属性及其值来构建信息结构。模型的基本构成包括：一系列节点N，代表被描述的资源和属性值。一系列属性类P，定义资源和属性的类别。每个属性P都有特定的取值V，形成三元组{节点，属性类，值V}，构成RDF Statement。模型本质上是一个有向图，...
:nationality rdf:type owl:DatatypeProperty; rdfs:domain :Person; rdfs:range xsd:string . :hasBirthPlace rdf:type owl:ObjectProperty; rdfs:domain :Person; rdfs:range :Place . :address rdf:type owl:DatatypeProperty; rdfs:domain :Place; rdfs:range xsd:string . :coordinate rdf:type owl:Datatyp...
RDF Data Model in OracleNicole AlexanderXavier LopezSiva RavadaJack Wang
<rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Person"/> <schema:birthDate rdf:datatype="http://www.w3.org/2001/XMLSchema#date">1990-07-04</schema:birthDate> <foaf:knows rdf:resource="http://example.org/alice#me"/> <foaf:topic_interest rdf:resource="http://www.wikidata.org/...
This chapter describes procedures that import RDF data into Neo4j. The main method for importing RDF is n10s.rdf.import.fetch. It imports and persists into Neo4j the triples returned by an URI. This URI can point to an RDF file (local or remote) or a service producing RDF dynamically. ...
RDF is not like the tabular data model of relational databases. Nor is it like the trees of the XML world. Instead, RDF is a graph. 图3-1:W3C 语义网 标准栈 RDF由节点和边组成,节点表示实体/资源、属性,边则表示了实体和实体之间的关系以及实体和属性的关系。 在RDF中,知识总是以三元组的...
RDF Data-Centric Storage 来自 掌桥科研 喜欢 0 阅读量: 60 作者:JJ Levandoski,MF Mokbel 摘要: The vision of the semantic Web has brought about new challenges at the intersection of Web research and data management. One fundamental research issue at this intersection is the storage of the ...
Data层是我们用RDF对罗纳尔多知识图的具体描述,Vocabulary是我们自己定义的一些词汇(类别,属性),RDF(S)则是预定义词汇。从下到上是一个具体到抽象的过程。图中我们用红色圆角矩形表示类,绿色字体表示rdf:type,rdfs:domain,rdfs:range三种预定义词汇,虚线表示rdf:type这种所属关系。另外,为了减少图中连线的交叉,我们...
Validating RDF Data 来自 ResearchGate 喜欢 0 阅读量: 37 作者: Gayo, Jose Emilio Labra, Prud\"hommeaux, Eric, Boneva, Iovka, Kontokostas, Dimitris 摘要: RDF and Linked Data have broad applicability across many fields, from aircraft manufacturing to zoology. Requirements for detecting bad data ...
Querying RDF Data 来自 irma-international.org 喜欢 0 阅读量: 24 作者: IS Multimedia 摘要: This chapter provides an introduction to the RDF language as well as surveys the languages that can be used for querying RDF graphs. Then it reviews some of the languages that can be used for ...