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问题描述

在这里,我想将JSON文件转换为RDF.这是JSON

Here I want to convert the JSON file into RDF. Here is the JSON

{
"glossary": {
    "title": "example glossary",
    "GlossDiv": {
        "title": "S",
        "GlossList": {
            "GlossEntry": {
                "ID": "SGML",
                "SortAs": "SGML",
                "GlossTerm": "Standard Generalized Markup Language",
                "Acronym": "SGML",
                "Abbrev": "ISO 8879:1986",
                "GlossDef": {
                    "para": "A meta-markup language, used to create markup languages such as DocBook.",
                    "GlossSeeAlso": ["GML", "XML"]
                },
                "GlossSee": "markup"
            }
        }
    }
}
}

我找不到将其转换为RDF的正确方法.

I could not find a proper way to convert it into RDF.

推荐答案

没有将JSON解释为RDF的标准方法.但是,有几种方法可以从JSON文件生成RDF(以Java或其他方式).您可以简单地使用以Java实现的JSON解析器,然后提取相关部分并使用用于RDF的Java库(例如 Apache Jena RDF4J (以前称为 Sesame ).但是,还有其他方法可以使任务轻松得多:

There is no standard way to interpret JSON as RDF. There are several ways you can generate RDF from a JSON file though (in Java or otherwise). You could simply use a JSON parser implemented in Java, then extract the relevant parts and build an RDF graph using a Java library for RDF such as Apache Jena or RDF4J (formerly known as Sesame). However, there are other ways that could make the task much easier:

  • 通过添加@context将JSON文件转换为 JSON-LD 文件.这对于简单的案例来说效果很好,但不足以涵盖许多相关案例.
  • 使用 RML (一种用于表达从各种数据格式(包括JSON)到RDF的映射的语言).它具有Java的参考实现. RML是R2RML的扩展,因此它也可以将关系数据映射到RDF,如果您熟悉 R2RML ,相对容易理解RML的工作原理.还有图形编辑器,但似乎无法下载.
  • 使用 SPARQL-Generate (一种用于表达来自非RDF数据的映射的语言)源(包括JSON)到RDF.它具有基于耶拿的参考实现.它扩展了SPARQL,因此,如果您熟悉SPARQL,它应该很容易使用.可以在线测试.
  • Transform the JSON file into a JSON-LD file by adding a @context to it. This works well for simple cases but is not sufficient to cover many relevant cases.
  • Use RML, a language for expressing mappings from various data formats (including JSON) to RDF. It has a reference implementation in Java. RML is an extension of R2RML, so it can also map relational data to RDF, and if you are familiar with R2RML, it is relatively easy to understand how RML works. There is also a graphical editor, but it seems it is not available for download.
  • Use SPARQL-Generate, a language for expressing mappings from non-RDF data sources (including JSON) to RDF. It has a reference implementation based on Jena. It extends SPARQL, so if you are familiar with SPARQL, it should be quite easy to use it. It can be tested online.

免责声明:我为SPARQL-Generate做出了贡献.

Disclaimer: I contributed to SPARQL-Generate.

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08-06 23:23