OWL Api，将班级从父母A搬到B [英] OWL Api, move class from parent A to B

问题描述

我对owl api的用法有一个简单的问题。

I'm having a quick question regarding the usage of the owl api.

我说有一个名为Species的类，它有一个Subclass哺乳动物，它有一个子类灵长类动物，它有一个子类人类。

Say I have a class called Species, which has a Subclass mammal, which has a Subclass Primate, which has a subclass Human.

物种 - >哺乳动物 - >灵长类动物 - >人类

species -> mammal -> primate -> human

有些原因，我想在我们的软件中重新分类，并说灵长类动物不再被认为是哺乳动物，而是它们应该是物种的直接子类。

For some reason, I would like to reclassify this in our software and say that Primates are not longer considered Mammals, instead they should be a direct subclass of a Species.

意思是我们的图形现在看起来应该是这样的

Meaning our graph should look like this now

物种 - >灵长类动物 - >人类

species -> primate -> human

任何人都可以指点我正确的方向？

can anybody please point me in the right direction?

找到我们的父类很容易，使用owl-api

Finding our the parent class is easy enough, using the owl-api

reasoner.getSuperClasses(chield, true).entities().collect(Collectors.toSet[OWLClass])

但我如何才能从我父母那里分离我的班级？

but how can I 'detach' my class now from it's parent?

推荐答案

如果你有一个ontolog y关系所在：

If you have an ontology where the relations :

• 物种 - >哺乳动物


• 哺乳动物 - >灵长类动物


• primate - > human

是直接断言的（不是推理计算的结果）。

are directly asserted (not the result of a reasoning computation).

然后在owlapi中，这表示为公理：

Then in owlapi this is represented as axioms :

1. OWLSubClass（哺乳动物，物种）


2. OWLSubClass（灵长类动物，哺乳动物）


3. OWLSubClass（人类，灵长类动物）

解决办法可能是删除旧的subClass断言并添加新的断言（除非你正在使用Allen-temporal）。

The solution could be to remove the old subClass assertion and add the new one (unless you are playing with Allen-temporal).

OWLDataFactory factory = manager.getOWLDataFactory();
ontology.remove(factory.getOWLSubClassOfAxiom(primate, mammal));
ontology.add(factory.getOWLSubClassOfAxiom(primate, species));

注意：如果您使用的是旧版本的owlapi，那么我们必须使用OWLOntologyManager删除/在本体中添加公理：

Note : if you are using a version older than 5 of owlapi then we must use the OWLOntologyManager to remove/add axioms in an ontology :

manager.remove(ontology, axiom)
manager.add(ontology, axiom)

如果您的本体中没有直接断言专业化关系;它会复杂得多。你必须知道为什么'人类'被视为'哺乳动物'的子类。也许'推理'的'解释'系统可以帮助你。

If the specialization relation aren't directly asserted in your ontology; it will be far more complex. You have to know why 'human' is view a subclass of 'mammal'. Maybe the 'explanation' system of the 'reasoner' can help you.

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