In data science, sameAs or exactMatch is a method of indicating that the subject of, or entity represented by, two resources is considered to be one and the same thing. It is a key part of the Semantic Web.

Uses

The concept of sameAs exists in a number of different schemas and systems: *

JSON-LD JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding linked data using JSON. One goal for JSON-LD was to require as little effort as possible from developers to transform their existing JSON to JSON-LD. JSON-LD allows data ...

OWL Owls are birds from the order Strigiformes (), which includes over 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers a ...

- owl:sameAs *

schema.org Schema.org is a reference website that publishes documentation and guidelines for using structured data mark-up on web-pages (called microdata). Its main objective is to standardize HTML tags to be used by webmasters for creating rich results (di ...

SKOS Simple Knowledge Organization System (SKOS) is a W3C recommendation designed for representation of thesauri, classification schemes, taxonomies, subject-heading systems, or any other type of structured controlled vocabulary. SKOS is part of the ...

- skos:exactMatch *

Wikidata Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, can use under the CC0 public domain license. ...

- Property:P2888 "exact match", with the alias "sameas" The owl:sameAs predicate has been described as "an essential ingredient of the Semantic Web architecture".

Recognition

Google recognises sameAs relationships expressed via schema.org or JSON-LD, used by individuals or organisations, and uses them to populate the

Google Knowledge panel The Google Knowledge Graph is a knowledge base from which Google serves relevant information in an infobox beside its search results. This allows the user to see the answer in a glance. The data is generated automatically from a variety of sou ...

in search results.

References

{{Reflist

External links

sameAs.cc

sameas.org
* `owl:sameAs` specification: https://www.w3.org/TR/owl-ref/#sameAs-def Semantic Web