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UBY is a Linked Lexical Resource

UBY combines a wide range of information from 10 expert-constructed and collaboratively constructed resources for English and German:

A subset of these resources is inter-linked at the word sense level. UBY is a valuable resources for many knowledge-based NLP applications. Get more information on the UBY website.

UBY Offers Interoperability Across Resources

UBY contains interoperable lexicons: the lexical resources contained in UBY have been made interoperable by converting them into lexicons according to a standardized format based on the ISO standard Lexical Markup Framework (LMF), called UBY-LMF. UBY-LMF is a full-fledged instantiation of the ISO standard LMF. Read more ...

Learning UBY

Using UBY requires solid knowledge of lexical resources, such as WordNet and FrameNet and their underlying concepts. For instance, you should be able to tell the difference between a sense and a synset.

Learn these foundations and how to use UBY by walking through this detailed tutorial on Linked Lexical Resources:

Download a UBY database

We provide dumps of UBY databases for download. Get more information on the database dumps we offer on this Wiki page.

Citing UBY

License Information

  • Lexicon Data Apart from GermaNet and IMSlex which are licensed under an academic research license, all resources in UBY are available under open licenses, requiring either attribution or both, attribution and share alike.
  • Lexicon Model The lexicon model UBY-LMF is available under the CC BY-SA 3.0 license.
  • Code License While the UBY-API module and most conversion modules are available under the Apache Software License (ASL) version 2, there are a few conversion modules that are GPL licensed. It must be pointed out that while the component's source code itself is licensed under the ASL or GPL, individual components might make use of third-party libraries or products that are not licensed under the ASL or GPL, such as LGPL libraries or libraries which are free for research but may not be used in commercial scenarios. Please make sure that you are aware of the third party licenses and respect them.




This project was initiated under the auspices of Prof. Dr. Iryna Gurevych, Ubiquitous Knowledge Processing Lab (UKP), Technische Universit├Ąt Darmstadt. We are grateful for the generous financial support from the Volkswagen Foundation and the German Research Foundation (DFG).

Please post any questions or suggestions to the UBY Developers Group.

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