Archive

This is the list of historical YAGO versions. For the current version, please go to the downloads page.

Version numbers of YAGO are assigned as follows:

1. The major version changes if new sources have been added
2. The minor version changes if improvements have been made
3. The maintenance version changes in response to bug fixes

YAGO3 is an extension of the YAGO knowledge base that combines the information from the Wikipedias in multiple languages.  YAGO3 taps into multilingual resources of Wikipedia, getting to know more local entities and facts. In the current version, it has been extracted from 10 different Wikipedia versions (English, German, French, Dutch, Italian, Spanish, Polish, Romanian, Persian, and Arabic).

1. YAGO3 contains canonical representations of entities appearing in different Wikipedia language editions.
2. YAGO3 integrates all non-English entities into the rich type taxonomy of YAGO.
3. YAGO3 provides a mapping between non-English infobox attributes and YAGO relations.

Database Importer

We provide a database script to load YAGO3 into a Postgres database.

To run this script;

• download YAGO in TSV format.
• in a shell or dos box, cd into the directory of the YAGO TSV files
• run "psql -a -d <database> -h <hostname> -U <user> -f <thisScript>" without quotes

Download database importer!

YAGO2s is an improved version of YAGO 2, with the following main characteristics:

1. YAGO2s is stored natively in Turtle, making it completely RDF/OWL compliant while still maintaining the fact identifiers that are unique to YAGO.
2. The YAGO2s architecture enables cooperation of several contributors, facilitates debugging and maintenance. The data is divided into themes, so that users can download only particular pieces of YAGO ("YAGO à la carte").
3. YAGO2s contains thematic domains such as "music" or "science", which gives a topic structure to YAGO.

Database Importer

We provide a database script to load Yago2s into a Postgres database.

To run this script;

• download YAGO in TSV format.
• in a shell or dos box, cd into the directory of the YAGO TSV files
• run "psql -a -d <database> -h <hostname> -U <user> -f <thisScript>" without quotes

Download database importer!

YAGO 2 is an improved version of the original YAGO. Its main characteristics are:

1. As with all major releases, the accuracy of YAGO2 has been manually evaluated, proving a confirmed accuracy of 95%. Every relation is annotated with its confidence value.
2. YAGO2 is an ontology that is anchored in time and space. YAGO2 attaches a temporal dimension and a spacial dimension to many of its facts and entities.
3. YAGO2 is particularly suited for disambiguation purposes, as it contains a large number of names for entities. It also knows the gender of people.

Converters

We provide a Java converter tool for the following purposes:

• export YAGO to RDFS, to Notation3, and to XML.
• load YAGO into a database (Postgres, MySQL or Oracle)
• query YAGO locally using SPARQL

To use these tools, please download YAGO in its native format, in either version. Then download the Java tool (11Mb).
We also provide a tool to decode the native backslash encoding of entity names to UTF-8: Download the de-/encoding tool.

YAGO2 as Linked Open Data

YAGO2 is part of the linked data cloud. We are linked directly to DBpedia. You can download these links.

• sameAs-links between the individuals of DBpedia and YAGO2: download N3 (27Mb)
• sameAs-links between the classes of YAGO2 and the YAGO-based classes of DBpedia: download N3 (4Mb)
• subClassOf-links between the classes of YAGO2 and the manual ontology classes of DBpedia: download as TSV (with precision), download as RDF/TTL (cut at 60% precision). These links have been computed automatically by the PARIS project and are not 100% accurate.
• subPropertyOf-links between the relations of YAGO2 and the manual ontology properties of DBpedia: download as TSV (with precision), download as RDF/TTL (cut at 40% precision). These links have been computed automatically by the PARIS project. They are not perfect, but of very reasonable quality.

This is the original version of YAGO. YAGO 1 knows more than 2 million entities (like persons, organizations, cities, etc.). It knows 20 million facts about these entities.