自己做网站可以挣钱吗,微信开放社区,seo哪家强,最近热点新闻事件为了更清晰地说明JSON-LD上下文是如何将属性映射到RDF IRIs#xff0c;我们可以基于提供的上下文规范#xff0c;举一个完整的JSON-LD数据实例#xff0c;并展示它是如何转换为RDF三元组的。
示例上下文
{context: {foaf: http://xmlns.com…为了更清晰地说明JSON-LD上下文是如何将属性映射到RDF IRIs我们可以基于提供的上下文规范举一个完整的JSON-LD数据实例并展示它是如何转换为RDF三元组的。
示例上下文
{context: {foaf: http://xmlns.com/foaf/0.1/, Person: foaf:Person,interest: foaf:topic_interest,knows: {id: foaf:knows,type: id},birthdate: {id: http://schema.org/birthDate,type: http://www.w3.org/2001/XMLSchema#date},dcterms: http://purl.org/dc/terms/,title: dcterms:title,creator: {id: dcterms:creator,type: id},subject_of: {reverse: dcterms:subject,type: id}}
}示例JSON-LD数据
{type: Person,id: http://example.org/people/john,title: Developer,creator: http://example.org/people/jane,subject_of: http://example.org/articles/article1,knows: http://example.org/people/joe,birthdate: 1980-01-01
}映射为RDF三元组
根据上下文规范这个JSON-LD数据可以映射为以下RDF三元组 type 映射 http://example.org/people/john rdf:type foaf:Person title 映射 http://example.org/people/john dcterms:title Developer creator 映射 http://example.org/people/john dcterms:creator http://example.org/people/jane subject_of 映射使用 reverse http://example.org/articles/article1 dcterms:subject http://example.org/people/john knows 映射 http://example.org/people/john foaf:knows http://example.org/people/joe birthdate 映射 http://example.org/people/john http://schema.org/birthDate 1980-01-01^^http://www.w3.org/2001/XMLSchema#date
详细解释 type 映射到 rdf:type 并使用 foaf:Person http://example.org/people/john rdf:type foaf:Person .title 映射到 dcterms:title http://example.org/people/john dcterms:title Developer .creator 映射到 dcterms:creator 并指定类型为 id http://example.org/people/john dcterms:creator http://example.org/people/jane .subject_of 使用 reverse 映射到 dcterms:subject http://example.org/articles/article1 dcterms:subject http://example.org/people/john .knows 映射到 foaf:knows 并指定类型为 id http://example.org/people/john foaf:knows http://example.org/people/joe .birthdate 映射到 http://schema.org/birthDate 并指定类型为 http://www.w3.org/2001/XMLSchema#date http://example.org/people/john http://schema.org/birthDate 1980-01-01^^http://www.w3.org/2001/XMLSchema#date .通过这些映射可以将JSON-LD文档转换为RDF三元组从而使数据在语义网环境中具有互操作性和可查询性。
