YAGO (Yet Another Great

Ontology In metaphysics, ontology is the philosophy, philosophical study of being, as well as related concepts such as existence, Becoming (philosophy), becoming, and reality. Ontology addresses questions like how entities are grouped into Category ...

) is an open source

knowledge base A knowledge base (KB) is a technology used to store complex structured and unstructured information used by a computer system. The initial use of the term was in connection with expert systems, which were the first knowledge-based systems. ...

developed at the

Max Planck Institute for Computer Science Max or MAX may refer to: Animals * Max (dog) (1983–2013), at one time purported to be the world's oldest living dog * Max (English Springer Spaniel), the first pet dog to win the PDSA Order of Merit (animal equivalent of OBE) * Max (gorilla) ...

Saarbrücken Saarbrücken (; french: link=no, Sarrebruck ; Rhine Franconian: ''Saarbrigge'' ; lb, Saarbrécken ; lat, Saravipons, lit=The Bridge(s) across the Saar river) is the capital and largest city of the state of Saarland, Germany. Saarbrücken is ...

. It is automatically extracted from

Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...

and other sources. As of 2019, YAGO3 has knowledge of more than 10 million entities and contains more than 120 million facts about these entities. The information in YAGO is extracted from

(e.g., categories, redirects, infoboxes),

WordNet WordNet is a lexical database of semantic relations between words in more than 200 languages. WordNet links words into semantic relations including synonyms, hyponyms, and meronyms. The synonyms are grouped into '' synsets'' with short defin ...

(e.g., synsets, hyponymy), and

GeoNames GeoNames (or GeoNames.org) is a user editable geographical database available and accessible through various web services, under a Creative Commons attribution license. The project was founded in late 2005. The GeoNames dataset differs fro ...

. The accuracy of YAGO was manually evaluated to be above 95% on a sample of facts. To integrate it to the

linked data In computing, linked data (often capitalized as Linked Data) is structured data which is interlinked with other data so it becomes more useful through semantic queries. It builds upon standard Web technologies such as HTTP, RDF and URIs, but ...

cloud, YAGO has been linked to the

DBpedia DBpedia (from "DB" for " database") is a project aiming to extract structured content from the information created in the Wikipedia project. This structured information is made available on the World Wide Web. DBpedia allows users to semanti ...

ontology In metaphysics, ontology is the philosophy, philosophical study of being, as well as related concepts such as existence, Becoming (philosophy), becoming, and reality. Ontology addresses questions like how entities are grouped into Category ...

and to the

SUMO is a form of competitive full-contact wrestling where a '' rikishi'' (wrestler) attempts to force his opponent out of a circular ring ('' dohyō'') or into touching the ground with any body part other than the soles of his feet (usually by t ...

ontology. YAGO3 is provided in

Turtle Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked t ...

and tsv formats. Dumps of the whole

database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases ...

are available, as well as thematic and specialized dumps. It can also be queried through various online browsers and through a

SPARQL SPARQL (pronounced " sparkle" , a recursive acronym for SPARQL Protocol and RDF Query Language) is an RDF query language—that is, a semantic query language for databases—able to retrieve and manipulate data stored in Resource Description ...

endpoint hosted by OpenLink Software. The source code of YAGO3 is available on GitHub. YAGO has been used in the

Watson Watson may refer to: Companies * Actavis, a pharmaceutical company formerly known as Watson Pharmaceuticals * A.S. Watson Group, retail division of Hutchison Whampoa * Thomas J. Watson Research Center, IBM research center * Watson Systems, make ...

artificial intelligence system.David Ferrucci, Eric Brown, Jennifer Chu-Carroll, James Fan, David Gondek, Aditya A. Kalyanpur, Adam Lally, J. William Murdock, Eric Nyberg, John Prager, Nico Schlaefer, Chris Welty. Building Watson: An Overview of the DeepQA Project. AI Magazine 31(3): 59-79 (2010)

References

External links

New Homepage

YAGO Homepage

{{Semantic Web Max Planck Institute for Informatics Knowledge bases Online databases Creative Commons-licensed databases

See also

References

External links