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Lexicons for the Multilingual UCREL Semantic Analysis System

The UCREL semantic analysis system (USAS) is a framework for undertaking the automatic semantic analysis of text. The framework has been designed and used across a number of research projects since 1990.

The USAS framework initially in English is being extended to other languages. This repository houses the lexicons and tagsets for the non-English versions of the USAS tagger.

In order to reference this further development of the multilingual USAS tagger, please cite our paper at NAACL-HLT 2015, which described our bootstrapping approach:

Piao, S., Bianchi, F., Dayrell, C., D'Egidio, A. and Rayson, P. (2015). Development of the multilingual semantic annotation system. In proceedings of the 2015 Conference of the North American Chapter of the Association for Computational Linguistics - Human Language Technologies (NAACL HLT 2015), Denver, Colorado, United States, pp. 1268-1274.

In 2015/16, we extended this initial approach to twelve languages and evaluated the coverage of these lexicons on multilingual corpora. Please cite our LREC-2016 paper:

Scott Piao, Paul Rayson, Dawn Archer, Francesca Bianchi, Carmen Dayrell, Mahmoud El-Haj, Ricardo-María Jiménez, Dawn Knight, Michal Kren, Laura Löfberg, Rao Muhammad Adeel Nawab, Jawad Shafi, Phoey Lee Teh and Olga Mudraya. (2016) Lexical Coverage Evaluation of Large-scale Multilingual Semantic Lexicons for Twelve Languages. In proceedings of the 10th edition of the Language Resources and Evaluation Conference (LREC2016), Portoroz, Slovenia, pp. 2614-2619.

For more details about the USAS tagger, see our website: Others collaborating on multilingual lexicon development are listed on this site.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

If you are interested in getting involved in creating lexicons for new languages or updating the existing ones then please get in touch with: Paul Rayson ( and Scott Piao ( at Lancaster University.


Lexicons for the Multilingual UCREL Semantic Analysis System



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