如何使用 SPARQL 获取具有给定对象属性的给定类/个体的个体

发布于 2024-09-05 16:54:32 字数 523 浏览 3 评论 0原文

我有一个名为“campus.owl”的简单本体。有一个名为“Lecturer”的类，它有两个子类，RegularLecturer 和 VisitingLecturer。还有一个名为“Student”的类，它是 Lecturer 类的兄弟类。我为所有班级创建了个人。

学生类与讲座类通过“has”对象属性连接在一起。

问题

我想为给定的学生个体找到一些讲师/客座讲师。你能帮我得到这个结果吗？提前致谢！

PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema#
PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# 
PREFIX my: http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl#

SELECT ?lec WHERE { ?lec..........??? }

任何想法..??

预先感谢！

原文

I have simple ontology called "campus.owl".There is a class called"Lecturer" and which has two sub classes ,RegularLecturer and VisitingLecturer.There is a another class called "Student" which is a sibling class of Lecturer class.
I have created individuals for all the classes.

Student class is joind with Lecture class with "has" object property.

problem

I want to get some Lecturer/VisitingLecturer individuals for given student individual. Could you please help me to get this result! Thanks in advance!

PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema#
PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# 
PREFIX my: http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl#

SELECT ?lec WHERE { ?lec..........??? }

any idea..??

Thank in advance!

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仲春光 2024-09-12 16:54:32

比如：

SELECT ?lec WHERE { ?lec a ?lectype. 
                    ?lectype <http://www.w3.org/2000/01/rdf-schema#subClassOf> <Lecturer>.
                    <student> <has> ?lec.}

应该这样做。

Something like:

SELECT ?lec WHERE { ?lec a ?lectype. 
                    ?lectype <http://www.w3.org/2000/01/rdf-schema#subClassOf> <Lecturer>.
                    <student> <has> ?lec.}

Should do it.

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