In the context of linked data, "linked" refers to the process of connecting and linking different pieces of data together to create a network of interconnected information. This is done by using unique identifiers, such as URIs (Uniform Resource Identifiers), to identify and reference specific pieces of data.
Linked data allows data from different sources to be connected and used together in new and interesting ways, creating a more comprehensive and meaningful view of the data. By linking data together, it becomes more discoverable, accessible, and reusable.
The linking of data is done by using standard technologies such as RDF (Resource Description Framework) and SPARQL (SPARQL Protocol and RDF Query Language) which enables data to be queried, retrieved, and integrated across different systems and platforms. The Linked Data principles are designed to make the data more connected and more valuable by following these principles:
- Use URIs as names for things
- Use HTTP URIs so that people can look up those names
- When someone looks up a URI, provide useful information, using the standards (RDF*, SPARQL)
- Include links to other URIs, so that they can discover more things.
In summary, linked data refers to the process of connecting and linking different pieces of data together by using unique identifiers, such as URIs, to create a network of interconnected information, making data more discoverable, accessible, and reusable.
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