| Sep 28, 2018 in Madeira: Invited Keynote Speaker at the 9th international Conference on Intelligent Systems 2018 |
| Aug 30, 2018 in Darmstadt:Symposium on “Cultural Heritage and Digitization” - European Year of Cultural Heritage: Why the digital preservation of cultural heritage is so important |
| May 10-11, 2017 in Luxembourg:First Meeting of the European Commission's Expert Group on Digital Cultural Heritage and Europeana (DCHE) |
| March, 14th, 2017 Invited Keynote at the European Commission: Summer University – Special Event on Digital Heritage organized by EC/DG Connect in Luxemburg |
| March 10th , 2017: The Lawyers' Committee for Cultural Heritage Preservation 8th Annual Conference |
| December 15-16, 2016 Invited Keynote at the UNESCO/Interpol Conference in Damascus to Strengthen the Fight against Illicit Trafficking of Cultural Objects |
| September 27-29, 2016 Invited Keynote at the EU Net4Society Event in Lisbon, Portugal |
| April 6, 2016 Invited Keynote: INCEPTION - towards an Inclusive Cultural Heritage in Europe, Ferrara, Italy. |
| March 25, 2016 Invited Keynote: The Lawyers' Committee for Cultural Heritage Preservation (LCCHP), New York, USA |
| March 19, 2016 Invited Keynote: Europe and the Mediterranean Towards a Sustainable Built Environment, Valetta, Malta. |
| November 2015, CY-ICOMOS, Symposium: Cultural Heritage – Our Memory Under Risc, Nicosia, Cyprus |
| November 2015, Intangible Cultrural Heritage and Innovation, Berlin - Germany |
| November 2015, Civic Epistemologies, Berlin Germany |
| June 2015, 6th International Conference on Emerging Technologies in non-destructive Techniques ETNDT-2015, Bruxelles, Belgium |
| March 11-13 2015, Lyon-France, 9th INTERPOL International Symposium on the Theft of and Illicit Traffic in Works of Art, Cultural Property and Antiques |
| January 26 2015, Federal Government of Germany, Berlin-Germany, 3D ins Museum in Berlin, Germany |
 September 15-17 2014, The 2014 Constructing memory, OECD, Verdum-France
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| September 06-11 2014, Dresden-Germany, CIDOC-CRM2014 |
| May 08-10 2014, Zagreb-Croatia, Cultural Heritage2014: From Natural and Man-Made disasters |
| June 2-4 2013 Collections Mobility Conference, Berlin, Germany, Invitation by the Federal Government Commissioner for Culture and the Media - Germany |
| September 2013, 55th Photogrammetric week, Stuttgart Germany |
| 26th of September 2013, Distinguished Invited Talk at the Institute for Media Innovation of the Nanyang Technological University, Singapore |
| October 22-25, 2013, 6th International Congress on Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin, Athens, Greece |
| November 13-15, 2013 European Video Dance Heritage Conference in Düsseldorf, Germany – Invited Talk by the Federal German Archive of Music and Video (The German Dachverband Tanz und Video). |
| November 26-27 2013, European Commission Conference 2013 Marie Curie Actions: On the last lap to Horizon 2020, Florence, Italy |
| The 2012 International Conference on Digital Applications in Cultural Heritage, Taipei, Taiwan (Ministry of Culture, Taiwan) |
