知识图谱数据模型与查询语言——知识图谱原理与应用-2

知识图谱数据模型与查询语言

RDF图数据模型与SPARQL查询语言

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背景介绍

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RDF图数据模型

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RDF Schema

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SPARQL查询语言

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SPARQL——声明式查询语言

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屏幕截图 2025-05-29 151108

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SPARQL语义

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笛卡尔积的概念

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属性图数据模型与Cypher查询语言

背景介绍

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属性图模型

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屏幕截图 2025-05-29 160339

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一个节点在属性图当中可以有多个标签

一条边在属性图当中只可以有一个标签

Cypher

Cypher语法详情

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t2若是MATCH，那么就是自然连接，T2只有第一行数据

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Cypher语言查询语义

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t2若是MATCH，那么就是自然连接，T2只有第一行数据

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只是MATCH,自然连接，n2，n7没有对应的边，就会删除

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Cypher语言查询语法

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图模式当中两个经典的模式：点模式和关系模式

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TinkerPop图计算框架与Gremlin图遍历语言及遍历机

知识背景

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posted @ 2025-05-29 16:59  狐狸胡兔  阅读(26)  评论(0)    收藏  举报