This page list some academic and non-academic talks as well as press articles.
| 2025 | On Academic Authorship, lecture Research Integrity course for PhD students VU Faculty of Science (ongoing series) |
| 2023 | ‘On Embracing Errors’, valedictory lecture on 21 April, marking my official retirement: video (Dutch), text (English), text (Dutch) |
| 2023 | ‘Faculty of Science, Vrije Universiteit Amsterdam‘, welcome video |
| 2022 | ‘Publiek van de Toekomst‘, in Dutch, campaign Digital Heritage Netherlands (DEN, supervisory board member 2013-2021) |
| 2021 | Farewell speech for rector magnificus Vinod Subramanian, , Vrije Universiteit Amsterdam |
| 2020 | Welcome message for new students, audio message due to COVID-19 pandemic, September 2020 |
| 2017 | ‘How the Semantic Web is transforming information access‘, B-Debate, ‘”Artificial Intelligence: Dreams, Risks, and Reality’, Barcelona, 8 March |
| 2015 | ‘Semantics and the Humanities‘, presentation at St. Johns College, Oxford, 25 September |
| 2015 | ‘Pragmatics of ethics: paper writing‘, course Research Integrity, VU |
| 2013 | ‘NoTube project overview‘, EU panel, Luxemburg |
| 2011 | ‘Principles for Knowledge Engineering on the Web‘, keynote lecture IC3K Conference on Knowledge Discovery, Engineering and Management, Paris, France, 28 October |
| 2011 | ‘The Art of Knowledge Engineering, or: knowledge engineering of art‘, seminar in honour of the retirement of Bob Wielinga, Amsterdam |
| 2011 | ‘Het nieuwe zoeken, het nieuwe vinden‘, interview in Dutch, //Collectie, magazine for library professionals |
| 2010 | ‘Web 3.0: meer vinden dan je zoekt‘, interview Volkskrant, in Dutch |
| 2010 | ‘Web science: the digital-heritage case‘, keynote lecture SOFTSEM 2010, Spindler Mlyn, Czech Republic |
| 2010 | ‘Het Semantische Web‘, programma Denktank, BNR Nieuwsradio, in Dutch |
| 2008 | ‘Principles and pragmatics of a Semantic Culture Web‘, invited talk at meeting of the European National Libraries, Frankfurt amMain, 31 January |
| 2007 | ‘Spin in het Semantische Web’, article in Vrij Nederland (Dutch periodical) about th the Semantic Web group at the VU, in the series ‘Het Verstand van Nederland’ (‘The Brains of The Netherlands’) |
| 2007 | ‘Het slimme broertje van Google‘, Gewoon Bijzonder, VU alumni magazine, in Dutch |
| 2006 | ‘Over de grijpbaarheid en grenzen van kennis‘, inaugural lecture (in Dutch), VU Amsterdam, 24 December |
| 2005 | ‘OWL: the W3C Web Ontology Language‘, invited talk Berlin Open Forum, von Humboldt University, September |
| 2004 | ‘The making of the Web Ontology Language‘ OWL, SIKS day, Zeist castle, March |