"Lexical Substitution using Crowdsourcing", IBM Watson Research Center, Hawthorne, NY, USA, July 2011
"Lexical Substitution using Crowdsourcing", UKP lab, TU Darmstadt, Germany, November 2010
"Structure Discovery in Natural Language in application to lexical substitution", TU Darmstadt, Germany, November 2010
"Lexikalische Substitution mit Hilfe von Crowdsourcing". University of Regensburg, Germany, November 2010
"Similarity and Ambiguity in Language Graphs". Microsoft Research, Mountain View, California, USA, January 2010 * "Unüberwachtes Strukturlernen auf Sprachgraphen in der Anwendung für lexikalische Substitution". University of Frankfurt am Main, Germany, November 2009
Sept. 2009 "Crowdsourcing WordNet". Microsoft Research, Redmond, WA, USA, Sept. 2009
"Invited Talk: Visual Aspects of Semantic Search on Wikipedia". Mediencampus Leipzig: Workshop Visual Document Analytics. Juni 2009
"Word Sense Induction and Disambiguation at Powerset". Microsoft Research, Bangalore, India, February 2009 "Word Sense Induction and Disambiguation at Powerset"
"A Random Text Model for the Generation of Statistical Language Invariants". Microsoft Research, Bangalore, India, February 2009 "Word Sense Induction and Disambiguation at Powerset". Microsoft Research, Redmond, WA, USA, Sept. 2008
"Unsupervised and Knowledge-free Natural Language Processing in the Structure Discovery Paradigm", University of Wolverhampton, UK, Sept. 2007
"Unsupervised and Knowledge-free Natural Language Processing in the Structure Discovery Paradigm", University of Sussex, Brighton, UK, Sept. 2007
"Unsupervised and Knowledge-free Natural Language Processing in the Structure Discovery Paradigm".ILLC, UvA Amsterdam, Netherlands, August 2007 "Unsupervised and Knowledge-free Natural Language Processing in the Structure Discovery Paradigm"
"A Random Text Model for the Generation of Statistical Language Invariants and Language Evolution". SFB-Kolloquium Universität Bielefeld Germany, June 2007
"Korpuslinguistische Methoden im Projekt Deutscher Wortschatz" Kolloquium im Arbeitsbereich Allgemeine und Neurokognitive Psychologie, FU Berlin, Germany, Dec. 2006
"Unsupervised Part-of-speech Tagging" Workshop Web-based Corpora and Lexicology, University of Regensburg, Germany, Sept. 2006
"Language-independent methods for enriching monolingual corpora". New York City NLP-Forum, USA, June 2006
"Obtaining semantic relations from text corpora in an unsupervised way". Aksis, University of Bergen, Norway, Dec. 2006
"The Wortschatz Project - Language-independent Methods for Enriching Corpora". Aksis, Universität Bergen, Norway, Oct. 2005
"Finding homogeneous word sets. Towards a dissertation in NLP". Tekstlaboratoriet, University of Oslo, Norway, Oct. 2005
"The Wortschatz Project - Language-independent Methods for Enriching Corpora". Tekstlaboratoriet, University of Oslo, Norway, Oct. 2005
"Using Statistics to Grasp on Semantics". Oberseminar AIFB Karlsruhe, Germany, July 2005
"SemanticTalk - der Innovationsbeschleuniger", LINTEC AG Hausmesse, Leipzig, Germany, June 2004
5 Lectures on statistical NLP, KAIST, Daejon, South Korea, March 2004
"Lernen durch Suche und Verifikation - Extraktion von semantischen Relationen aus großen Textkorpora". TaCoS studentische Tagung zur Computerlinguistik und Sprachtechnologie, Giessen, Germany, June 2003