YAGO: A Core of Semantic Knowledge
Download
The YAGO ontology is based on data from Wikipedia and WordNet.
Some people have experienced problems when downloading these items using Internet Explorer, as such we recommend using a different web browser. The following items can be downloaded.
- The YAGO ontology: Preview
Download version 2008-w40-2 (1Gb, 95% Accuracy)
Download version 2009-w42-2 (1.3Gb, Accuracy not evaluated)
The YAGO ontology is licensed under the GNU Free Documentation License.
- YAGO in RDFS: Download (1Gb, version 2008-w40-2) Preview
The RDFS version of YAGO is licensed under the GNU Free Documentation License.
- YAGO in Notation 3: Download (250Mb, version 2009-w10-5) Preview
The Notation 3 version of YAGO is licensed under the GNU Free Documentation License.
- The subclassof hierarchy of YAGO in RDFS: Download (7Mb, version 2008-w40-2) Preview
The subclassof hierarchy of YAGO in RDFS is licensed under the GNU Free Documentation License.
- Java programs to convert YAGO to RDFS, Notation3, XML, Postgres, MySQL or Oracle, to link and import to DBpedia and to query YAGO:
Download (640Kb, version 2010-Mai-25).
The YAGO converters are licensed under a Creative Commons Attribution 3.0 License by the Max-Planck Institute for Informatics.
Querying
There are multiple ways of querying YAGO:
- You can query YAGO directly online through the Web interface.
- You can also use our Java interface to query YAGO, see above under "Downloads".
- Thanks to Paul McQuesten, there is also a free database implementation tailored to YAGO here.
- YAGO is also available as a Web service. This means that YAGO can be queried online by RDFS-compatible applications. The YAGO URIs are of the form
http://mpii.de/yago/resource/entityname
For more information on ontological Web services, see
the W3C's Linking Open Data Project.
We thank Structured Dynamics LLC for hosting the Web service of YAGO!
- SPASS-YAGO, a modified version of the state-of-the-art theorem prover SPASS is
able to reason using YAGO.
