Extending the NegEx lexicon for multiple languages.

TitleExtending the NegEx lexicon for multiple languages.
Publication TypeJournal Article
Year of Publication2013
AuthorsChapman, WW, Hillert, D, Velupillai, S, Kvist, M, Skeppstedt, M, Chapman, BE, Conway, M, Tharp, M, Mowery, DL, Deleger, L
JournalStud Health Technol Inform
Date Published2013
iDASH CategoryNatural Language Processing
AbstractWe translated an existing English negation lexicon (NegEx) to Swedish, French, and German and compared the lexicon on corpora from each language. We observed Zipf's law for all languages, i.e., a few phrases occur a large number of times, and a large number of phrases occur fewer times. Negation triggers "no" and "not" were common for all languages; however, other triggers varied considerably. The lexicon is available in OWL and RDF format and can be extended to other languages. We discuss the challenges in translating negation triggers to other languages and issues in representing multilingual lexical knowledge.
Alternate JournalStud Health Technol Inform
PubMed ID23920642