Lexical Semantic Methods for Language Understanding

Lexical-Semantic Methods for Language Understanding

Teaching Staff

  • Prof. Dr. Iryna Gurevych
  • Dr. Torsten Zesch (no fixed office hour, please just ask for an appointment per mail)
  • Christian M. Meyer, M. Sc. (no fixed office hour, please just ask for an appointment per mail)

Please contact Dr. Torsten Zesch or Christian M. Meyer for any organizational issues.


  • Lecture: Tuesday 09:50-11:30, Room S313/56 S202/D017
  • Practice class: Thursday 09:50-11:20 Room S202/D017
  • Please note: starting from April 12, all lectures and practice classes will be held in S202/D017.

The learning material is available from the Moodle eLeaning platform.

The required passcode will be distributed during the lecture.


  • Date – 31.07.2012
  • Room – S202/C205
  • Time – 12:00-14:00

Course content

Algorithms for analysing the meaning of words in documents are of crucial importance for a wide range of applications including information retrieval, automatic summarization, or automatic keyphrase extraction. The lecture puts a special focus on the resoures used to provide knowledge for these algorithms. Besides classical semantic wordnets like Princeton WordNet, the lecture also introduces emerging Web 2.0 resources like Wikipedia and Wiktionary.

  • Introducation to Natural Language Processing and Lexical-Semantics
  • Lexical-Semantic Resources
    • WordNet
    • Wikipedia
    • Wiktionary
    • Other resources (thesauri, semantic networks, ontologies)
    • Standardizing resources
  • Lexical-semantic methods
    • Semantic Relatedness
    • Text Similarity
    • Word Sense Disambiguation
    • Paraphrase Recognition
    • Named Entity Recognition
    • Keyphrase Extraction

Core Literature

  • Daniel Jurafsky, James H. Martin. Speech and Language Processing (2nd Edition). Prentice Hall. ISBN-13: 978-0131873216
  • Ruslan Mitkov (Ed.). The Oxford Handbook of Computational Linguistics. Oxford University Press. 2005. ISBN-13: 978-0199276349

Other Relevant Literature

  • Kai-Uwe Carstensen, Christian Ebert, Cornelia Endriss, Susanne Jekat, Ralf Klabunde, Computerlinguistik und Sprachtechnologie. Eine Einführung, Heidelberg: Spektrum-Verlag, März 2004. (2. Auflage) ISBN 3827414075
  • D.A. Cruse. Lexical Semantics. Cambridge University Press, 1986. ISBN 0-521-27643-8