ClearTK was originally developed by the University of Colorado’s Center for Computational Language and Education Research.
Most of ClearTK is distributed under the BSD license.
However, a small portion of the code is licensed under the GPL because it depends on GPL licensed third party libraries. This code has been isolated into sub-projects so that only these sub-projects need to be licensed with the GPL. For further details on the software licenses please see:
If you use ClearTK to support academic research, please cite:
@inproceedings{bethard-etal:2014:LREC,
author = {Steven Bethard and Philip Ogren and Lee Becker},
title = {ClearTK 2.0: Design Patterns for Machine Learning in UIMA},
booktitle = {Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)},
year = {2014},
month = {5},
date = {26-31},
address = {Reykjavik, Iceland},
publisher = {European Language Resources Association (ELRA)},
pages = {3289--3293},
url = {http://www.lrec-conf.org/proceedings/lrec2014/pdf/218_Paper.pdf}}
If you use the ClearTK-TimeML modules, please cite:
@inproceedings{bethard:2013:!SemEval-2013,
author = {Bethard, Steven},
title = {ClearTK-TimeML: A minimalist approach to !TempEval 2013},
booktitle = {Second Joint Conference on Lexical and Computational Semantics (`*`SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (!SemEval 2013)},
month = {June},
year = {2013},
address = {Atlanta, Georgia, USA},
publisher = {Association for Computational Linguistics},
pages = {10--14},
url = {http://www.aclweb.org/anthology/S13-2002}}