1. Slides from the Keynote talk at Social Data on the Web workshop collocated with ISWC, 2009.
2. "Context and Domain Knowledge Enhanced Entity Spotting in Informal Text" presented at the 8th International Semantic Web Conference, 2009.
3. Tutorial presentation, Text Analytics for Semantic Computing - the good, the bad and the ugly, Second IEEE International Conference on Semantic Computing, 2008
4. "Monetizing User Activity on Social Networks - Challenges and Experiences", presented at IEEE/WIC/ACM International Conference on Web Intelligence, 2009