Linked Data does have a concrete definition: RDF data that is accessible through SPARQL, with well defined semantics. That is, following a published ontology an

Linked Data does have a concrete definition: RDF data that is accessible through SPARQL, with well defined semantics. That is, following a published ontology and re-using existing vocabularies as much as possible. Linked Data itself is not novel: https://www.w3.org/standards/semanticweb/data https://www.w3.org/standards/semanticweb/data