RDF和OWL工作流程问题 [英] RDF and OWL workflow question

问题描述

我一直在通过Protege查看和使用OWL，我想知道我是否正确理解了工作流程"及其构想(从头开始建立数据库:

I have been looking at and playing with OWL through Protege and I would like to know if I understand the "workflow" and idea of it correctly (for building up a database from scratch:

1. 使用Protege或同等功能为您的数据生成OWL本体
2. 将此架构导出到RDF
3. 使用定义为三元组中的某些元素的类以及您的目标数据
4. 将您的Triplestore导出到RDF
5. 使用openRDF/sesame或Jena加载定义的数据和本体
6. 根据OWL本体验证RDF三重存储，以确保一切正常
7. 使用SPARQL从RDF三重存储中获取数据
8. 使用OWL推理程序执行某项操作(此处并不清楚)

我想了解其他人在做什么以及他们如何解决此类问题.

I would like to get an idea of what others are doing and how they are approaching this type of problem.

此外，我还有一个具体问题:

In addition I have a specific question:

似乎猫头鹰推理器仅用于确定本体的子类超类关系.但是就数据而言，如何查询子类-SPARQL中的超类关系.例如，如果我的三重店定义(pizzaID1是-a marghareta)，并且我在SPARQL中查询素食比萨饼，那么如何确保返回pizzaID1.

It seems like an owl reasoner is used to determine sub-class superclass relationships only for ontologies. But in terms of data how to you query for subclass - superclass relationships in SPARQL. For example if my triple store defines (pizzaID1 is-a marghareta ) and I query for vegetarian pizza in SPARQL how do I make sure that pizzaID1 is returned.

我认为答案与生成全图"有关，其中明确说明了每种关系.查询三元组时sparql是否会进行任何自动推理，还是需要生成这样的完整图?

I think that the answer has something to do with generating a "full-graph", one in which every relationship is explicitly stated. Does sparql do any automatic reasoning when querying triplestores, or is generating such a full graph neccessary?

推荐答案

有很多可能的工作流程，但实际上并不需要那么复杂.

There are many possible workflows, but it really doesn't have to be that complex.

1. 在某些编辑器中生成了OWL本体
2. 将本体导出为RDF
3. 将本体导入三重存储
4. 将数据导入三重存储
5. 使用SPARQL查询数据

子/超类推理是推理机的用途，如果您使用带有内置推理机的商店，则SPARQL将使用其信息，因此，如果这样做:

The sub/superclass reasoning is what the reasoner is used for, if you use a store with a builtin reasoner then then it's information will be used by SPARQL, so if you do:

SELECT ?pizza
WHERE {
  ?pizza a :VegitarianPizza .
}

您将取回属于VegitarianPizza类或其任何子类的所有披萨.

You will get back all the pizzas that are members of the class VegitarianPizza, or any of it's subclasses.

我猜测VegitarianPizza类在您的本体中定义为不包含肉类成分的比萨饼?而不是手动分配每个披萨课?否则，实际上就不需要OWL，您可以只使用RDFS，这要简单得多.

I'm guessing that the class VegitarianPizza is defined in your ontology as a pizza that has no ingredients that are meat? Rather than assigning each pizza to a class by hand? Otherwise there's really no need for OWL, and you could just use RDFS, which is much simpler.

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