GermaNet

Description

GermaNet is a lexical-semantic net that has been developed within the LSD Project at the Division of Computational Linguistics of the Linguistics Department at the University of Tübingen. It has been integrated into the EuroWordNet (EWN), a multilingual lexical-semantic database. GermaNet relates German nouns, verbs, and adjectives semantically by grouping words belonging to the same concept and by defining semantic relations between concepts. It has much in common with the English WordNet and might be viewed as an on-line thesaurus defining an explicit ontology. The GermaNet team is co-organizing a workshop on wordnets in conjunction with the Third Language Resources and Evaluation Conference (LREC 2002) at Las Palmas, Spain, on 28th May, 2002.

Docu and Papers

See WordNet documentation also.

• Hamp, B. & H. Feldweg (1997): "GermaNet - a Lexical-Semantic Net for German". In: Proceedings of ACL workshop Automatic Information Extraction and Building of Lexical Semantic Resources for NLP Applications". Madrid, 1997.
• Feldweg, H. (1997): "GermaNet - ein lexikalisch-semantisches Netz für das Deutsche". In: Ludewig, P & B. Geurts (eds.): 'Lexikalische Semantik aus kognitiver Sicht - Perspektiven im Spannungsfeld linguistischer und psychologischer Modellierungen'. Tübinger Beiträge zur Linguistik (TBL), Bd. 439, Gunter Narr Verlag, Tübingen
• Wagner, A. & C. Kunze (1999): "Integrating GermaNet into EuroWordNet, a Multilingual Lexical-Semantic Database". In: Sprache und Datenverarbeitung, SDv Vol. 23.2/1999, S. 5-20.
• Kunze, C. (1999): "Semantics of Verbs within GermaNet and EuroWordNet". In: V. Kordoni (ed.): Proceedings of the ESSLLI-99 Workshop on 'Lexical Semantics and Linking in Constraint-Based Theories', S. 189-200.
• Kunze, C. (2000): "Extension and Use of GermaNet, a Lexical-Semantic Database". In: Proceedings of the Second International Conference on Language Resources and Evaluation, Vol. II, S. 999-1002. Athens, Greece. 31 May - 2 June 2000.
• Wagner, A. (2000): "Enriching a lexical semantic net with selectional preferences by means of statistical corpus analysis". In: Proceedings of the ECAI-2000 Workshop on Ontology Learning, Berlin, August 2000, 37-42.
• Kunze, C. &. A. Wagner (2001): "Anwendungsperspektiven des GermaNet, eines lexikalisch-semantischen Netzes für das Deutsche". In: Lemberg, I. & B. Schröder & A. Storrer (eds.): Chancen und Perspektiven computergestützter Lexikographie. Tübingen: Niemeyer. Lexicographica Series Maior 107. S. 229-246.
• Kunze, C. (2001): "Lexikalisch-semantische Wortnetze". In: K.-U. Carstensen et al. (Eds.): Computerlinguistik und Sprachtechnologie: eine Einführung. Heidelberg; Berlin: Spektrum, Akademischer Verlag, S. 386-393.
• Lemnitzer, L. & C. Kunze (2001): "Adapting GermaNet for the Web". Accepted conference paper on the 1st International Wordnet Conference in Mysore, Indien, 21.-25.01.2002.

Contact

• URL: http://www.sfs.nphil.uni-tuebingen.de/lsd/english.html
• Email: Claudia Kunze, kunze@sfs.nphil.uni-tuebingen.de

Current Project Members (GermaNet II)

• Prof. Dr. Erhard Hinrichs (Project Leader)
• Claudia Kunze
• Karin Naumann
• Valérie Béchet.

Former Members

• Lexical Semantic Disambiguation (LSD) 1996 - 1997:
  • Helmut Feldweg (Project Leader)
  • Birgit Hamp
  • Christine Thielen
  • Rosmary Stegmann
  • Susanne Schuele
• EuroWordNet II 1998 - 1999:
  • Claudia Kunze
  • Karin Naumann
  • Andreas Wagner

Versions

• current version is v4.0 (2002-04-11)
• distributed as normal and as EuroWordNet version
• EuroWordNet version maps 15000 synsets (of currently 27823 synsets) via ILI (inter language index)
• normal GermaNet distribution does not contain ILI records
• updates of GermaNet once a year for 50 EURO
• updates of EuroWordNet version unclear

Features

• size of normal GermaNet version
  • 27824 noun synsets
  • 8810 verb synsets
  • 5141 adjective synsets including pertainym synsets
  • 2 adverb synsets
  • 41777 synsets in total
  • 60646 synonyms in synsets
  • 52251 unique word phrases
  • 1.45 synonyms per synset
  • 1.16 word senses per literal
• relations and classification (see TermsAndConventions for an explanation)
  • Antonymy
  • Hyperonymy / Hyponymy
  • Meronymy / Holonymy
  • Entailment
  • Cause
  • Also See
  • Derived From / Pertonym
  • Participle
  • Regular Polysemy (not implemented)
  • Selectional Restriction (not implemented)
  • verb frames
  • verb classes
  • cross-categorial relations, eg. entailment btw. verbs and adjektives

Licenses

• Academic Research License Agreement
• Research and Development License Agreement
• Commercial License Agreement

-- MichaelDaum - 04 Apr 2002