Main speaking commitments until 2010, ordered by year. More recent appearances can be found here.

2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010
2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000
1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990

If you want to inquire about a possible invitation, please send an initial email to Petra Best, p.best@uva.nl, preferably at least three months before the event.

2009

  • Open Sources for Expertise Retrieval, UvT, Tilburg, December 2009
  • BRIDGE: Building Rich Links to Enable Television History Research, Amsterdam, December 2009
  • Op Zoek naar Experts en Andere Entitieiten, SURF, Utrecht, December 2009
  • Topical diversity on the web, TREC, Gaithersburg, November 2009
  • What do people write about today? Ranking news headlines based on clusters of overused terms, TREC, Gaithersburg, November 2009
  • Het web als waarzegger, CrossMedia, Hilversum, October 2009
  • CLEF 2010: Conference on Multilingual and Multimedia Information Access Evaluation, CLEF, Corfu, September 2009
  • Mining Log Files, Semantically, CLEF, Corfu, September 2009
  • Searching User Generated Content, Nancy, June 2009
  • Retrieving Experts and Other Entities, Saarbruecken, June 2009
  • Expert Profiling in the Wild, Enschede, June 2009
  • Information Extraction in a Multilingual Context, Pisa, June 2009
  • Content and Structure in Information Retrieval, Umea, June 2009
  • Data, Structure. Structure, Data., Delft, May 2009
  • Searching and Mining User Generated Content, BCN, Groningen, May 2009
  • Nieuws over Expertise Retrieval, UKB, Utrecht, May 2009
  • Semantisch Amsterdam, Amsterdam, May 2009
  • Retrieving Entities, SIKS, Zeist, April 2009
  • Searching User Generate Content: What’s Next?, ECIR keynote, Toulouse, April 2009
  • Linking Entities and Events, Catch meeting, Den Haag, February 2009
  • Het Sociale Web, Amsterdam, January 2009

2008

  • People search, Nunspeet, November 2008
  • DuOMAn: Dutch Language Online Media Analysis, Roosendaal, September 2008
  • WebCLEF—Goodbye!, Aarhus, September 2008
  • Named entity normalization in user generated content, Singapore, July 2008
  • Finding Key Bloggers, One Post at a Time, Patras, July 2008
  • What system for what scenarios?, Madrid, June 2008
  • Retrieving entities, Zeist, June 2008
  • Wikipedia-based tagging in user generated content, Amsterdam, May 2008
  • Search and discovery in user generated content, Glasgow, April 2008
  • Associating People and Documents, Glasgow, April 2008
  • Looking at Things Differently, Maastricht, April 2008
  • MuNCH: Multimedia aNalysis for Cultural Heritage, Hilversum, April 2008
  • Media en cultuur: wat wordt er binnenkort mogelijk?, Amsterdam, March 2008
  • Zoeken, Amsterdam, March 2008
  • Analyse van blog content, Amsterdam, January 2008

2007

  • Vindbaarheid eerst!, Den Haag, December 2007
  • QA@INEX: A proposal, Amsterdam, November 2007
  • WebCLEF overview, CLEF, Aarhus, September 2007
  • Who’s the user, who’s the researcher? SIGIR workshop on non-Engish web retrieval, Amsterdam, July 2007
  • WiQA: Evaluating Multi-lingual Focused Access to Wikipedia, EVIA 2007, Tokyo, May 2007
  • Brainwave, Holland Herald, April 2007
  • Identifying Facets in User Generated Content, Boulder, March 2007
  • How to Overcome Tiredness: Estimating Topic-Mood Associations, Boulder, March 2007
  • Verkiezingskijker, Amsterdam, March 2007
  • Het volgen van user generated content, Ministerie van OC&W, Amsterdam, February 2007
  • MoodViews, WAR site visit, Amsterdam, January 2007

2006

  • Finding Things, VUA, Amsterdam, December 2006
  • Stemming op internet voorspellen, TROS Radio Online; December 12, 2006
  • Internet Voorkeur, NRC; November 11, 2006
  • Het humeur van het Internet, BNR Nieuwsradio; November 9, 2006
  • Kennisvalorisatie, Senaat, Amsterdam, October 2006
  • Levens Zoekbaar, Oratie, Amsterdam, October 2006
  • WebCLEF… the future, CLEF, Alicante, September 2006
  • WebCLEF 2006 Topic Development, CLEF, Alicante, September 2006
  • Overview of WebCLEF 2006, CLEF, Alicante, September 2006
  • Using Content and Structure at WiQA 2006, CLEF, Alicante, September 2006
  • Finding People and Moods, IGK, Edinburgh, September 2006
  • Searching for People in the Personal Workspace, IIIA, Helsinki, July 2006
  • Internet is boos (of moe of blij), De Psycholoog 41(6):342, June 2006
  • Blogs, blogs, blogs, ISLA, Amsterdam, June 2006
  • Language Technology for Video Retrieval, MuNCH Meeting, Amsterdam, June 2006
  • Stemmingmeter voor internet, NRC; May 10, 2006
  • Ein Stimmungsbarometer fur das Web, ORF; April 25, 2006
  • Wann weint das Web?, Der Spiegel; April 21, 2006
  • Software tracks mood swings of blogosphere, The New Scientist; April 20, 2006
  • Software Reportedly Tracks Internet Mood Swings, InformationWeek; April 19, 2006
  • Het humeur van het Internet, Teleac Radio; April 13, 2006
  • A Study of Blog Search, ECIR, London, April 2006
  • Des Bloggers Konsumvorlieben, heise online; April 6, 2006
  • Universiteit Amsterdam peilt humeur bloggers, tweakers.net; April 5, 2006
  • Humeur van webloggers in kaart gebracht, nu.nl; April 5, 2006
  • Het humeur van het internet, NWO Press Release; April 4, 2006
  • Feeling Everybody Up, MetroActive; March 29, 2006
  • Facing Restrictions in Question Answering, DIR, Delft, March 2006
  • Volgende generatie zoekmachines, Voorlichting, Amsterdam, January 2006

2005

  • Two Models for Finding Experts, TREC, Gaithersburg, November 2005
  • Retrieving Answers from Frequently Asked Questions Pages on the Web, CIKM, Bremen, October 2005
  • Question Answering: Now and Next, Enschede, October 2005
  • Boosting Web Retrieval through Query Operations, BNAIC, Brussels, October 2005
  • Buy 30, Get 547, CLEF, Vienna, September 2005
  • Reasoning and Learning in Information Access, SIKS, May 2005
  • Search engines that create their own structure & Question Answering SIKS, April 2005
  • What’s Next in QA and IR?, Groningen, March 2005
  • Focused Retrieval, Hildesheim, Germany, January 2005
  • Question Answering: What’s Next?, IWCS 2005, Tilburg, January 2005

2004

  • Building a Multi-Lingual Web Retrieval Collection, CLIN 2004, December 2004
  • Search, SIKS School, December 2004
  • Language Modelling and Semistructured Information Retrieval, SIKS School on Information Retrieval, December 2004
  • Search, Informatics Institute, November 2004
  • Natural Language Processing for the Semantic Web, SIKS School on the Semantic Web, November 2004
  • New Ideas, CLEF 2004, September 2004
  • Proposal for a Multi-Lingual Web Track, CLEF 2004, September 2004
  • A Recall-Oriented Approach to Question Answering, CLEF 2004, September 2004
  • Why?, ILLC, University of Amsterdam, June 2004
  • Information Access at LIT, IMIX Symposium, KUN Nijmegen, May 2004
  • Information Access at LIT, ISLA Colloquium, Amsterdam, May 2004
  • The Effectiveness of Combining Information Retrieval Strategies for European Languages, ACM Symposium on Applied Computing, Cyprus, March 2004

2003

  • Natural Language Parsing with W-grammars, Antwerp, December 2003
  • Quartz-d: A Question Answering System for Dutch, TREC 2003, Gaithersburg, November 2003
  • Question Answering System at the University of Amsterdam, TREC 2003, Gaithersburg, November 2003
  • Dutch Question Answering, SNN, Nijmegen, October 2003
  • Vraag-Antwoord Systemen, ICT-Kenniscongres, Den Haag, September 2003
  • Designing a Multi-Stream System for Answering Dutch Questions, CLEF 2003, Trondheim, August 2003 [poster]
  • Intelligent Information Access, Amsterdam, June 2003
  • Learning and Reasoning for Question Answering, Nunspeet, June 2003
  • QA — What’s Next?, Edinburgh, May 2003
  • Intelligent Information Access, Amsterdam, March 2003
  • Towards Temporal Question Answering, Bolzano, February 2003
  • Beyond Document Retrieval, Trento, February 2003 [slides]
  • From Frege to Google, Liverpool, February 2003
  • Intelligent Information Access, Amsterdam, February 2003
  • Information retrieval and more, Utrecht, January 2003

2002

  • Combining Evidence for Monolingual Retrieval in European Languages, DIR, Leuven, December 2002
  • Intelligent Information Acces, Philips NatLab, Eindhoven, November 2002
  • Kennis-Intensieve Vraag-Antwoordsystemen, Amsterdam, Oktober 2002
  • Knowledge-Intensive Question Answering, BNAIC’02, Leuven, Oktober 2002
  • Decomposing Modal Logic, AiML, Toulouse, September 2002
  • Combining Morphological and Ngram Evidence for Monolingual Retrieval, CLEF, Rome, September 2002
  • Lanugae and Inference Technology, ICT-Kenniscongres, Den Haag, September 2002
  • FoLLI: The State of Things, ESSLLI, Trento, August 2002
  • Towards a test set for inference in computational semantics, Amsterdam, April 2002
  • The University of Amsterdam at CLEF 2001, Utrecht, March 2002
  • Computing with Meaning, Manchester, March 2002
  • Computing with Meaning, Amsterdam, February 2002
  • Evaluate!, Amsterdam, January 2002

2001

  • From Computational Logic to Language and Inference Technology, Amsterdam, December 2001
  • Language and Inference Technology, Nancy, November 2001
  • Structuring Scientific Information, OzsL School Week, Nunspeet, October 2001
  • Surely, NLP Can Help IR, OzsL School Week, Nunspeet, October 2001
  • 8 Slides on WordNet, Amsterdam, October 2001
  • Information Retrieval, ESSLLI, Helsinki, August 2001
  • Towards a Test Set for Computational Semantics, ICoS-3, Siena, June 2001
  • Tree-Based Practical Algorithms for Modal Logic, IRCS, University of Pennsylvania, Philadelphia, May 2001
  • Light-Weight Inference in Computational Semantics, IRCS, University of Pennsylvania, Philadelphia, May 2001
  • Experiments in Expressive Power, IRCS, University of Pennsylvania, Philadelphia, May 2001
  • Computing with Modal Logics, Udine, March 2001
  • Computing with Meaning, Den Haag, February 2001

2000

  • Computing with Meaning, Utrecht, November 2000
  • Three Adverts and a Bit, OZSL School Week, Nunspeet, October 2000
  • Balancing Inference and Representation, LFCS Seminar, University of Edinburgh, October 2000
  • Description and/or Hybrid Logic, AiML-2000, Leipzig, October 2000
  • Tree-Based Heuristics in Modal Theorem Proving, ECAI-2000, Berlin, August 2000
  • Modal Experiments, Automated Reasoning Workshop 2000, London, July 2000
  • Logic and Language Links, L3 Project Meeting, Amsterdam, June 2000
  • Representatie vs. Algoritme, Computational Logic Seminar, Amsterdam, April 2000
  • Logic in Action, WEIS Lustrum, March 7, Amsterdam
  • Efficient Reasoning Methods for Shallow Representations, Stuttgart, February
  • Computing with Meaning, The Hague, February
  • Content, Computational Logic Seminar, January, Amsterdam

1999

  • Computing with Meaning, Utrecht, December
  • The Logic of Feature Interaction, Computational Logic Seminar, Amsterdam, December
  • Computing with Modal Logic, SFB 340 Workshop, Bad Teinach, October
  • Temporal Logic, August 9, ESSLLI’99, Utrecht
  • Feature Interaction as a Satisfiability Problem, DL’99, Linkoeping, July
  • Satisfaction Through Combining, May 31, ILLC, Amsterdam
  • Termination in Term Rewriting, Computational Logic Seminar, May, Amsterdam
  • Combining Reasoning Systems, April 9, AISB, Edinburgh
  • Rekenen met Logica, April 1, OzsL, Utrecht
  • Prefixed Resolution, February 26, Computational Logic Seminar, ILLC, Amsterdam

1998

  • Buying Time, December 16, Manchester
  • Inference and Natural Language Semantics, December 14, LACL-98, Grenoble
  • Description Logics, November 27, Computational Logic Seminar, ILLC, Amsterdam
  • Description Logics, November 13, Computational Logic Seminar, ILLC, Amsterdam
  • Description Logics, October 23, Computational Logic Seminar, ILLC, Amsterdam
  • From Modal Logics to Standard Logics, August 24, ESSLLI’98, Saarbr├╝cken
  • Managing Fragments, July 29, WoLLIC’98, Sao Paulo
  • From Modal Logics to Standard Logics, July 28, WoLLIC’98, Sao Paulo
  • Process Operations in Extended Dynamic Logic, June 23, LICS’98, Indianapolis
  • Description Logics and Modal Logics, June 7, DL’98, Trento
  • Constraining Semistructured Data, May 15, Amsterdam
  • Classifying Small Description Languages, May 8, Lisbon
  • Semistructured Data, January 24, UGLLI’98, Uppsala

1997

  • Semistructured Data, November, Warwick
  • Classifying Description Logics, September, DL’97, Paris
  • Expressiveness of First-Order Description Logics, June, Warwick
  • Modal Logic, April, SIKS PhD School, Utrecht

1996

  • Finite Structures, December, JAIST, Kanazawa
  • Restricted Description Languages, December, Chiba University, Japan
  • Modal Model Theory, December, Chiba University, Japan
  • Bisimulations for Temporal Logic, November, Manchester
  • Simulating Without Negation, November, Birmingham
  • Formal Agent Theories, October, FoMAS’96, Warwick
  • Bisimulations for Temporal Logic, October, Queen Mary and Westfield College, London
  • Directed Simulations, September, CSL’96, Utrecht
  • Observational Equivalence and Logical Equivalence, August, ESSLLI’96, Prague
  • Reasoning about Changing Information, July, University of Cape Town
  • Bisimulation and Logic, June, UNISA, Pretoria
  • Expressive Power in Knowledge Representation, June, UNISA, Pretoria
  • Logics and Processes, June, Annual Meeting of the South-African Computer Lecturers Association, Pretoria
  • Expressivity and Modal Logic, May, Max-Planck Institut fuer Informatik, Saarbruecken
  • Logic, Transition Systems and Processes, May, Max-Planck Institut fuer Informatik, Saarbruecken
  • How to Put Two Logics Together, March, Warwick
  • Modal Tree Logics, January, CWI, Amsterdam

1995

  • Completeness Results for Two-Sorted Metric Temporal Logics, July, AMAST’95, Montreal
  • Trees, Grammar and Dynamic Logic, May, Leipzig
  • Process Equivalence and Logical Equivalence, March, Cape Town
  • Process Equivalence and Logical Equivalence, February, Warwick
  • Modal Model Theory, February, CIS, Universitaet Muenchen
  • Dynamic Logic as a Description Language, February, CIS, Universitaet Muenchen
  • Tree Logics for Computational Linguistics, January, CWI, Amsterdam

1994

  • A Lindstroem Theorem for Modal Logic, December, NSL ’94, Kanazawa, Japan
  • Now This is Modal Logic, November, Amsterdam
  • Bisimulations and Fragments of First-order Logic, August, ESSLLI’94, Copenhagen
  • The Logic of Peirce Algebras, August, ESSLLI’94, Copenhagen
  • Completeness via Flatness, July, ICTL’94, Bonn
  • Back and Forth between Time and Events, July, ICTL’94, Bonn
  • Zooming In, Zooming Out, June, STAS4, Moraga CA, USA
  • Logics of Communicating Structures, May, LLC-3, CSLI, Stanford, USA
  • A Lindstroem Theorem for Modal Logic, April, Workshop Three Days of Bisimulation, Amsterdam
  • Model Theory for Modal Logic, March, FACCS-Lab Seminar, University of Cape Town
  • The Logic of Peirce Algebras, March, Mathematics Colloquium, University of Cape Town
  • Dynamic Logic and Theory Change, March, Joint Maths/AI Colloquium, University of Cape Town
  • Zooming In, Zooming Out, January, Dagstuhl Seminar on Relational Methods in Computer Science, Saarbruecken

1993

  • Sequent Calculi for Logics that Count, November, Workshop on Proof Theory of Modal Logic, Hamburg
  • The Logic of Peirce Algebras, October, Colloquium on Partial and Dynamic Semantics, Utrecht
  • Dynamic Logic, August, ESSLLI’93, Lisbon
  • Counting Objects, May, ICCS’93, San Sebastian, Spain
  • Dynamic Modal Logic II, February, Amsterdam
  • Dynamic Modal Logic I, February, Amsterdam
  • Counting Objects, February, Imperial College, London
  • Counting Objects, January, Amsterdam

1992

  • What is Modal Logic?, December, Logic at Work, Applied Logic Conference, Amsterdam
  • A System of Dynamic Modal Logic, November, Colloquium on Partial and Dynamic Semantics
  • A Framework for Extended Modal Logic, October, Seminar on Non-Classical Logics, Sofia
  • A System of Dynamic Modal Logic, August, ASL European Summer Meeting, Veszprem, Hungary
  • Changing Information: the Amsterdam Way, May, CSLI Seminar, Stanford CA, USA
  • At Some Other Place, May, Intensional Logic Colloquium, Stanford CA, USA
  • A Modal Logic for Updating and Contracting, March, Colloquium on Non-Monotonic Reasoning, Delft
  • Extending Modal Logic, February, Amsterdam

1991

  • A Modal Logic for Updating and Revising, December, Workshop on Logic and the Flow of Information, Amsterdam
  • Generalized Quantifiers and Modal Logic, May, Colloquium on Logic and Theoretical Computer Science, Eindhoven

1990

  • Extended Modal Logic II, October, Amsterdam
  • Extended Modal Logic I, October, Amsterdam
  • Unary Interpretability Logic, June, Symposium Logic and Computer Science around the 42nd parallel, Marseille
  • Why Not at a Different Time?, April, Amsterdam