• Talk: Open Domain Question Answering Using Wikipedia-based Topic Models Event: Siemens Corporate Research, New Jersey, USA, February 7th 2012
  • Talk: Collective Web Intelligence: From Knowledge Discovery To Information Retrieval Event: Siemens Corporate Technology, Munich, Germany, August 18th 2011
  • Poster: Digital Fruits For Lunch: Feeding Embodied Conversational Agents With Wikipedia Knowledge Event: Interdisciplinary College 2011, Günne at Lake Möhnesee, Germany, March 29th 2011
  • Talk: Social Semantics And Its Evaluation By Means of Closed Topic Models: An SVM-Classification Approach Using Semantic Feature Replacement By Topic Generalization Event: GSCL-Conference, Potsdam (DE), 30th September 2009
  • Talk: Polarity Reinforcement: Sentiment Polarity Identification By Means Of Social Semantics Event: IEEE Africon 2009, Computational Semiotics, Nairobi (Kenya), 2009, 25th September 2009
  • Talk: The Feature Difference Coefficient: Classification by Means of Feature Distributions Event: Text Mining Services (TMS), 23. March 2009, Leipzig, Germany, 2009