Events and Activities

Invited Keynotes, Tutorials, and Panels

Keynote at KGSWC 2023, Sixth Ibero-American and Fifth Indo-American Knowledge Graph and Semantic Web Conference, Zaragoza, Spain, November 2023.
Keynote at AILA 2023, Artificial Intelligence Logic and Applications, China, August 2023. (slides (pdf))
Keynote at PFIA'23, Plate-Forme Intelligence Artificielle, Strasbourg, France, July 2023. (slides (pdf))
KGSWC 2022, Fourth Iberoamerican and Third Indoamerican Knowledge Graph and Semantic Web Conference, Universidad Camilo Jose Cela, Madrid, Spain, November 2022. (keynote, Explainable Deep Learning using Concept Induction) (slides (pdf))
Neurosymbolic Artificial Intelligence - some results regarding knowledge graphs. RBC Distinguished Speaker Series, Royal Bank of Canada, November 2022. (Neurosymbolic Artificial Intelligence - some results regarding knowledge graphs) (slides (pdf))
Doctoral Consortium, at ISWC 2022, Hangzhou, China (remotely), October 2022. (invited panelist)
Semantic Harmonization of Ontologies, at us2ts 2022, East Lansing, MI, September 2022. (invited panelist)
Pascal Hitzler, Some advances regarding ontologies and neuro-symbolic artificial intelligence. Workshop on Meta-Knowledge Transfer/Communication in Different Systems at ECML/PKDD 2022, Grenoble, France, September 2022. (keynote, and invited panelist) (slides (pdf))
Building the Future Knowledge Graph Infrastructure for the U.S. NSF Convergence Accelerator Expo 2022, virtual, July 2022. (invited panelist)
Pascal Hitzler, Neuro-Symbolic Artificial Intelligence: A Brief History, and Recent Advances. 2022 European Conference on Natural Language Processing and Information Retrieval (ECNLPIR 2022), Hangzhou, China, July, 2022. (keynote) (slides (pdf))
Pascal Hitzler, International Conference on Artificial Intelligence and Knowledge Processing 2022 (AKIP’22), Hyderabad, India, July 2022. (keynote) (slides (pdf))
AIxIA 2021, The 20th International Conference of the Italian Association for Artificial Intelligence, Online, December 2021. (keynote, Neuro-Symbolic Deep Deductive Reasoning) (slides (pdf))
KGSWC 2021, Third Iberoamerican and Second Indoamerican Knowledge Graph and Semantic Web Conference, Online, November 2021. (keynote, Modular Schema Development for Wikibase) (slides (pdf))
Semantic Web 20 Years in Finland Jubilee, Online, November 2021. (keynote, Semantic Web: A 20-year perspective) (slides (pdf))
Workshop on Explainable Graph-Based Machine Learning at AKBC 2021, October 2021. (keynote on Knowledge Graphs in Neuro-Symbolic AI) (slides (pdf))
Special Session on Reproducibility at ISWC 2021, October 2021. (invited panelist) (slides (pdf))
NeSy 20/21 at ICLR 2021 (online), October 2021. (invited tutorial on Deep Deductive Reasoning over Semantic Web Logics with Monireh Ebrahimi, Aaron Eberhart, Federico Bianchi)
GeoKG workshop at GIScience 2021, September 2021. (keynote on The KnowWhereGraph) (slides (pdf))
Summer School on Interactive AI, University of Bristol (online), September 2021. (invited tutorial on Knowledge graph reasoning with deep learning (deep deductive reasoning). (slides (pdf))
Artificial Intelligence Science Frontiers Online Lecture, August 2021. (Neural-Symbolic Artificial Intelligence: Deep Deductive Reasoning) (slides (pdf))
Conference on Data Intelligence and Knowledge Service, Beijing, June 2021. (keynote) (slides (pdf))
A Modeling Workshop for Data in Agriculture, Midwest Big Data Hub, June 2021. (keynote, Ontologies, Knowledge Graphs, and all that) (slides (pdf))
KGSWC-INDIA 2020, First Indo-American Knowledge Graph and Semantic Web Conference, Online, November 2020. (keynote, Neural-Symbolic Reasoning over Knowledge Graphs) (slides (pdf))
Knowledge Graph Design for Data Sharing, Integration, and Reuse. DECOR2020, The 3rd International Workshop on Data Engineering Meets intelligent food and Cooking Recipes, at the 36th IEEE International Conference on Data Engineering, ICDE 2020, Dallas, TX, April 2020. (keynote and panel member on Current Challenges and Future Directions) (slides (pdf))
Managing Data for Integration and Reuse. Global Food Systems Big Data Workshop, Manhattan, KS, October 2019. (slides (pdf))
ICCS 2018, 23rd International Conference on Conceptual Structures, Edinburgh, UK, June 2018. (keynote speaker on Modular Ontologies as a Bridge Between Human Conceptualization and Data) (slides (pdf))
Neural-Symbolic Integration and Its Relevance to Deep Learning and the Semantic Web. Keynote at DL4KGS 2018, Workshop on Deep Learning for Knowledge Graphs and Semantic Technologies at ESWC 2018. (slides (pdf))
Semantic Web: The Silent Data Revolution on the World Wide Web. Institute For Learning in Retirement, Miami University, Oxford, OH, April 2018.
OntologyWorkshop, Dayton, OH, February 2018. Invited speaker on (Some) Aspects of Quality Ontology Modeling.
Knowledge Graphs and Data Exploration Workshop, Dayton, OH, January 2018. Invited speaker on Ontology Design Patterns and their role in the development of a knowledge graph.
Towards Modular Ontology Modeling with Ontology Design Patterns. Keynote at WOMoCoE2017 at ISWC2017, Vienna, Austria, October 2017. (slides (pdf))
Ontology Modeling 2.0: Next Steps. Keynote at WOP2017 at ISWC2017, Vienna, Austria, October 2017. (slides (pdf))
1st Annual Commonwealth Computational Summit, Lexington, KY, October 2017. (keynote speaker on A Brief Introduction to Semantic Web - and a Contribution to Explainable Artificial Intelligence (pdf))
NeSy'17, Twelfth International Workshop on Neural-Symbolic Learning and Reasoning, City, University of London, UK, July 2017. (keynote speaker on Combining Learning and Reasoning: A Semantic Web Perspective (pdf))
ESWC 2017, 14th ESWC 2017, Portoroz, Slovenia, May/June 2017. (Invited Panelist on The Future of Proceedings Publication: The Perspective of the Semantic Web Community)
CoCo2016, Workshop on Cognitive Computation: Integrating Neural and Symbolic Approaches. Workshop at NIPS 2016, Barcelona, Spain, December 2016. (keynote speaker - presentation had to be cancelled)
Vienna Semantic Web Meetup, Vienna, Austria, September 12, 2016. (invited speaker on Linked Data as Part of the Big Data Landscape) (slides (pdf))
SBD2016, Semantic Big Data workshop at ACM SIGMOD, San Francisco, CA, USA, July 1, 2016. (keynote on Semantic Technologies for Big Data Interation) (slides (pdf))
2016 UQAM Summer School on Reasoning, Montreal, Quebec, Canada, June 2016. (invited lecture on Ontology Modeling) (slides (pdf))
MAICS 2016, The 27th Modern Artificial Intelligence and Cognitive Science Conference, Dayton, OH, April 2016. (keynote speaker on Knowledge Modeling for Data Sharing, Integration, and Reuse) (slides (pdf))
Diversity++, Workshop at the 2015 International Semantic Web Conference, Bethlehem, PA, October 2015. (keynote speaker on Ontology modeling with domain experts) (slides (pdf))
ACSW 2015, Australasian Computer Science Week 2015, 27-30 January 2015, Parramatta, Sydney, Australia. (keynote speaker on Advances in Semantic Web Technologies) (slides (pdf))
EKAW 2014, 19th International Conference on Knowledge Engineering and Knowledge Management, 24-28 November 2014, Linköping, Sweden. (keynote speaker on Ontology Design Patterns for Large-Scale Data Interchange and Discovery) (slides (pdf))
Ontology Summit 2014, Ontolog online session, January 2014. (invited panelist and presenter on Towards ontology patterns for ocean science repository integration) (slides (pdf)) (page with audio recording)
IAOA Semantic Web Applied Ontology (SWAO) SIG: Inaugural Meeting, Ontolog online session, November 2013. (invited panelist and presenter on Ontologies in a data-driven world: finding the middle ground) (page with audio recording)
STIDS2013, The 8th International Conference on Semantic Technologies for Intelligence, Defense, and Security, Fairfax, VA, November 2013. (invited tutorial on OWL and Rules)
COLD2013, Fourth International Workshop on Consuming Linked Data, Sydney, Australia, October 2013. (invited panel member on Opportunities and Challenges in Commercialising LOD)
Articulating Cyberinfrastructure Needs of the Ocean Ecosystem Dynamics Community. NSF EarthCube End-User Workshop, Woods Hole, MA, October 7-8, 2013. (invited speaker on Cyberinfrastructure opportunities for geoscience reasearch)
ICLP'13, 29th International Conference on Logic Programming, Istanbul, Turkey, September 2013. (keynote speaker) (youtube video)
LHD+SemQuant2012, Joint Workshop on Large and Heterogeneous Data and Quantitative Formalization in the Semantic Web, Boston, USA, November 2012. (invited panel member on Making sense of the web of data)
Chesapeake Large-Scale Analytics Conference (CLSAC), Annapolis, MD, October 2012. (invited speaker and panelist on big data and ontologies)
Value Proposition of Ontology and Semantic Technology for the Earth Science Community, part of the ontolog Earth Science Ontology Dialog (EarthScienceOntolog), August 2012. (invited panelist and presenter on On the uptake of Semantic Web Technologies) (page with audio recording)
GeoVoCampSB2012, Santa Barbara, California, February 2012. (invited panel member on Big Data GIScience.)
Reasoning Web 2011 Summer School, Galway, Ireland, August 2011. (invited lecture on OWL and Rules)
OWLED2011, Eighth International Workshop on OWL: Experiences and Directions, San Francisco, CA, June 2011. (invited tutorial on OWL and Rules)
ICFCA2011, 9th International Conference on Formal Concept Analysis, Nicosia, Cyprus, May 2011. (invited keynote speaker)
Emerging Trends in Scholarly Publishing Seminar, Washington DC, April 2011. (invited speaker) (page with video)
EDOC2010, Fourteenth IEEE International EDOC Conference, Vitoria, Brazil, October 2010. (invited tutorial on RDF, OWL, and Rules - had to be cancelled on short notice)
Linked AI, AAAI Spring Symposium "Linked Data Meets Artificial Intelligence", Stanford, CA, March 2010. (invited panel member on KR Needs For Linked Data - panel had to be canceled on short notice)
GeoS2009, Third International Conference on Geospatial Semantics (GeoS 2009), Mexico City, Mexico, December 2009. (conference keynote speaker on Semantic Web - Past, Present, and Future)
GeoS2009, Third International Conference on Geospatial Semantics (GeoS 2009), Mexico City, Mexico, December 2009. (invited tutorial on OWL 2 Rules)
KogWis 2008, Symposium on Neural-Symbolic Integration as a Means for Computational Cognition at the 9. Fachtagung der Gesellschaft für Kognitionswissenschaft, Dresden, Germany, September 2008. (invited speaker on Integrating Symbolic and Subsymbolic Cognitive Processing)
SWAP 2006, Semantic Web Applications and Perspectives, 3rd Italian Semantic Web Workshop, Pisa, Italy, December 2006. (invited speaker on Towards subsymbolic methods for semantic knowledge)
ISDT06, 4th International Symposium on Domain Theory. (invited speaker on Perspectives on Formal Concept Analysis: Domain Logics and Commonsense Reasoning)
ARW-05, Automated Reasoning Workshop, Edinburgh, UK, August 2005. (invited panel member on What contribution can automated reasoning make to e-Science?)
WPT 2002, Workshop on Proof Theory, Dresden, Germany, 2002. (invited speaker on Fixed-point Semantics for Logic Programming and Nonmonotonic Reasoning: A uniform approach)

Further presentations

Steering Committee/Advisory Board (listing discontinued)

NeSy'20/21, 15th International Workshop on Neural-Symbolic Learning and Reasoning at IJCLR, Athens, Greece, September 2021. (Steering Committee Member)
WOP2020 11th Workshop on Ontology Design and patterns, at ISWC 2020, Athens, Greece, November 2020 (virtual). (Steering Committee Member)
WOP2019 10th Workshop on Ontology Design and patterns, at ISWC 2019, Auckland, New Zealand, October 2019. (Steering Committee Member)
NeSy'19, Fourteenth International Workshop on Neural-Symbolic Learning and Reasoning at IJCAI-19, Macao, China, August 2019. (Steering Committee Member)
us2ts 2019, 2nd U.S. Semantic Technologies Symposium 2019, Durham, NC, March 2019 . (Steering Committee Member)
WOP2018 9th Workshop on Ontology Design and patterns, at ISWC 2018, Monterey, CA, USA, October 2018. (Steering Committee Member)
NeSy'18, Thirteenth International Workshop on Neural-Symbolic Learning and Reasoning, Prague, Chech Repulic, August 2018. (Steering Committee Member)
WOP2017 8th Workshop on Ontology Design and patterns, at ISWC 2017, Vienna, Austria, October 2017. (Steering Committee Member)
NeSy'17, Twelveth International Workshop on Neural-Symbolic Learning and Reasoning, London, UK, July 2015. (Steering Committee Member)
WOP2016, Workshop on Ontology and Semantic Web Patterns (7th edition) at ISWC 2016, Kobe, Japan, October 2016. (Steering Committee Member)
NeSy'16, Eleventh International Workshop on Neural-Symbolic Learning and Reasoning at HLAI 2016, New York City, USA, July 2016. (Steering Committee Member)
NeSy'15, Tenth International Workshop on Neural-Symbolic Learning and Reasoning at IJCAI-15, Buenos Aires, Argentina, July 2015. (Steering Committee Member)
RR 2015, 9th International Conference on Web Reasoning and Rule Systems, Berlin, Germany, August 2015. (Steering Committee member)
RW 2015, 11th Reasoning Web Summer School, Berlin, Germany, August 2015. (Scientific Advisory Board member)
RR2014, Seventh International Conference on Web Reasoning and Rule Systems, Athens, Greece, September 2014. (Steering Committee)
RR2013, Seventh International Conference on Web Reasoning and Rule Systems, Mannheim, Germany, 2013. (Steering Committee)
ICCS2013, 20th International Conference on Conceptual Structures, Mumbai, India, January 2013. (Editorial board member)
RR2012, Sixth International Conference on Web Reasoning and Rule Systems, Vienna, Austria, 2012. (Steering Committee Vice President)
ICCA 2012, International Conference on Computer Applications 2012, Pondicherry, India, January 2012. (Advisory Board member)
RR2011, Fifth International Conference on Web Reasoning and Rule Systems, Galway, Ireland, August 2011. (Steering Committee Vice President)
ICCS2010, 18th International Conference on Conceptual Structures, Kuching, Sarawak, Malaysia, July 2010. (Editorial board member)
RR2010, Fourth International Conference on Web Reasoning and Rule Systems, Bressanone, Italy, September 2010. (Steering Committee Vice President)
RR2009, Third International Conference on Web Reasoning and Rule Systems, Washington D.C., USA, October 2009. (steering committee vice-chair)
OWLED2009, OWL - Experiences and Directions, Sixth International Workshop, Washington D.C., USA, October 2009. (steering committee member)
ICCS2009, 17th International Conference on Conceptual Structures, Moscow, Russia, July 2009. (Editorial board member)
OWLED2008, OWL - Experiences and Directions, Fifth International Workshop, Karlsruhe, Germany, October 2008. (steering committee member)
RR2008, Second International Conference on Web Reasoning and Rule Systems, Karlsruhe, Germany, October 2008. (steering committee vice-chair)
ICCS2008, 16th International Conference on Conceptual Structures, Toulouse, France, July 2008. (Editorial Board member)
OWLED2008DC, Fourth Workshop OWL - Experiences and Directions, Washington D.C., April 2008. (steering committee member)
ICCS2007, 15th International Conference on Conceptual Structures. (editorial board member)
RR2007, First International Conference on Web Reasoning and Rule Systems. (steering committee vice-chair)
OWLED2007, Third Workshop OWL - Experiences and Directions. (steering committee member)

Editor-In-Chief

Semantic Web journal by IOS Press (Editor-in-Chief since 2009).
Book series Studies on the Semantic Web, IOS Press and AKA Verlag (Editor-in-Chief since 2009)

Editorial Boards

Frontiers in Artificial Intelligence and Applications, IOs Press. (editorial board member since 2020)
Applied Ontology (editorial board member since 2014)
Logic Journal of the IGPL (editorial board member since 2009)
Journal of Artificial General Intelligence. (editorial board member since 2008)
Book series Thinking Machines, Atlantis Press. (editorial board member since 2008)
Book series Begabtenförderung im MINT-Bereich, Aegis-Verlag, Ulm, dealing with enhancement programmes (editorial board member since 2003)
Jurnal Ilmu Komputer dan Informasi (Journal of Computer Sciences and Information), Universitas Indonesia (editorial board member 2015 - 2020
Artificial Intelligence Review (editorial board member 2015 - 2017)
International Journal of Conceptual Structures and Smart Applications. (editorial board member 2012 - 2020)
The Scientific World Journal. (editorial board member 2012 - 2014)
Frontiers of Computer Science, Springer. (editorial board member, 2011 - 2017)
Journal of Algorithms in Cognition, Informatics and Logic (editorial board member 2008-2009)
Journal Advances in Artificial Intelligence. (editorial board member 2007 - 2014)

Conference Programme Chair

FOIS 2018, 10th International Conference on Formal Ontology in Information Systems, Cape Town, South Africa, September 2018. (PC Chair)
AIMSA 2014, The 16th International Conference on Artificial Intelligence: Methodology, Systems, Applications, Varna, Bulgaria, September 2014. (PC chair)
ODBASE 2011, 10th International Conference on Ontologies DataBases, and Applications of Semantics, Heraklion, Crete (Greece), October 2010. (PC chair)
RR2010, Fourth International Conference on Web Reasoning and Rule Systems, Bressanone, Italy, September 2009. (PC Chair)
AGI-09, Second Conference on Artificial General Intelligence, Arlington, Virginia, March 2009. (PC chair)
ICCS06, 14th International Conference on Conceptual Structures. (PC chair)

Conference General Chair

ESWC 2019, Portoroz, Slovenia, June 2019.
us2ts 2019, Second U.S. Semantic Technologies Symposium, Durham, NC, USA, March 2019. (outgoing general chair)
us2ts 2018, First U.S. Semantic Technologies Symposium, Dayton, Ohio, USA, March 2018. (general chair)
RR2012, Sixth International Conference on Web Reasoning and Rule Systems, Vienna, Austria, 2011.

Summer School Chair

ICCL Summer School 2013 on Semantic Web - Ontology Languages and Their Use, Dresden, Germany, August 2013.

Conference Area/Track Chair (listing discontinued)

ECAI 2020, Santiago de Compostella, Spain, June 2020. (area chair)
ISWC 2018, The 17th International Semantic Web Conference, Monterey, CA, USA, November 2017. (Journals Track chair)
ESWC 2018, 15th ESWC 2018, Heraklion, Crete, Greece, June 2018. (Chair of the Ressources Track)
WWW 2018, The Web Conference, Lyon, France, April 2018. (Chair of the International Projects Track)
ISWC 2017, The 16th International Semantic Web Conference, Vienna, Austria, October 2017. (Journals Track chair)
ISWC 2016, The 15th International Semantic Web Conference, Kobe, Japan, October 2016. (Journals Track chair)
ESWC2015, 12th ESWC 2015, Portoroz, Slovenia, May/June 2015. (Chair of the reasoning track)
AAAI-15, Twenty-Ninth AAAI Conference on Artificial Intelligence, Texas, Austin, January 2015. (AI and the Web track chair)
ESWC2013, 10th ESWC 2013, Montpellier, France, May/June 2013. (Chair of the reasoning track)
ESWC2011, 8th Extended Semantic Web Conference, Heraklion, Crete (Greece), May/June 2011. (Chair of the reasoning track)
ISWC2010, 9th International Semantic Web Conference, Shanghai, November 2010. (vice chair for in-use and industrial track)
KI 2009, 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (Area Chair Ontologies & Semantic Web)

Conference PhD Symposium Chair (listing discontinued)

ESWC 2017, 14th ESWC 2017, Portoroz, Slovenia, May/June 2017. (PhD Symposium Chair)

Conference Workshops/Tutorials Chair (listing discontinued)

K-CAP 2013, 7th International Conference on Knowledge Capture, Banff, Alberta, Canada, June 2013. (Workshops and Tutorials chair)

Conference Sponsor Chair (listing discontinued)

ISWC 2013, 12th International Semantic Web Conference, Sydney, Australia, October 2013. (Sponsorships Chair)
RR2009, Third International Conference on Web Reasoning and Rule Systems, Washington D.C., USA, October 2009. (sponsor chair)
ESWC2009, 6th European Semantic Web Conference, May/June 2009, Heraklion, Crete (Greece). (sponsor chair)

Organizing Committee (listing discontinued)

GeoVoCamp, University of California, Santa Barbara, January 2020 (co-organizer).
us2ts 2018, First U.S. Semantic Technologies Symposium, Dayton, Ohio, USA, March 2018. (local chair)
GeoVoCampSB2015, Santa Barbara, CA, March 2015. (co-organizer)
GeoVoCampSOCoP2014, D.C., December 2014. (co-organizer)
GeoVoCampSB2014, Santa Barbara, CA, March 2014. (co-organizer)
GeoVoCampDC2013, Arlington, VA, November 2013. (co-organizer)
GeoVoCampSB2013, Santa Barbara, CA, March 2013. (co-organizer)
GeoVoCampDayton2012, Dayton, Ohio, September 2012. (local organization chair)
AGI-09, Second Conference on Artificial General Intelligence, Arlington, Virginia, March 2009. (member of organising committee)
First International Conference on the Mathematical Foundations of Computer Science and Information Technology, MFCSIT2000, Cork, July 2000. (local organization assistant)

Conference Senior PC Member

(listing discontinued)

ISWC 2018, The 17th International Semantic Web Conference, Monterey, CA, USA, October 2018. (Senior PC Member)
ISWC 2017, The 16th International Semantic Web Conference, Vienna, Austria, October 2017. (Senior PC Member)
IJCAI-16, 25th International Joint Conference on Artificial Intelligence, New York, USA, July 2016. (Senior PC member)
ISWC2013, 11th International Semantic Web Conference, Sydney, Australia, October 2013. (Senior PC member)
AAAI-13, 27th AI Conference, Bellewue, WA, USA, July 2013. (Senior PC member)
ISWC2012, 11th International Semantic Web Conference, Boston, USA, November 2012. (Senior PC member)
IJCAI-11, 22nd International Joint Conference on Artificial Intelligence, Barcelona, Catalonia, July 2011. (Senior PC member)

Workshop Chair/Special Session Organiser

GeoLink Cruise Instance Matching Track at OAEI-2020, with Lu Zhou and Reihaneh Amini. Ontology Alignment Evaluation Initiative, 2020 Campaign.
Workshop on Combining Symbolic and Sub-Symbolic Methods and their Applications, CSSA 2020, at CIKM 2020, Galway, Ireland, October 2020.
11th Workshop on Ontology Design and Patterns, WOP 2020, at ISWC 2020, Athens, Greece,November 2020 (General Chair).
HSSUES 2017, Workshop on Hybrid Statistical Semantic Understanding and Emerging Semantics, at ISWC2017, Vienna, Austria, October 2017. (Co-Organizer)
Scientometrics 2017, Scientometrics Workshop at ESWC 2017, Portoroz, Slovenia, May/June 2017. (Co-Organizer)
WOP 2016, Workshop on Ontology and Semantic Web Patterns (7th edition). (General Chair)
WOP2015, Workshop on Ontology and Semantic Web Patterns (6th edition), at ISWC 2015, Bethlehem, PA, October 2015. (Organizer and paper chair)
C4BD2014, Complexity for Big Data, Workshop at the IEEE BigData 2014 Conference, Washington D.C., October 2014. (organizer)
Neural-Symbolic Learning and Reasoning, Dagstuhl Seminar 14381, Dagstuhl, Germany, September 14-19, 2014. (organizer)
S4BD2013, Semantics For Big Data, AAAI Fall Symposium, Arlington, VA, November 2013. (chair)
NeSy'13, Ninth International Workshop on Neural-Symbolic Learning and Reasoning, at the 23rd International Joint Conference on Artificial Intelligence, Beijing, China, August 2013. (co-organizer)
Earth Science Ontolog. Ontolog Mini-series of online seminars, August to December 2012. (co-organizer)
SW2022, Workshop on What will the Semantic Web look like 10 years from now?, at ISWC2012, Boston, USA, November 2012.
NeSy'12, Eighth International Workshop on Neural-Symbolic Learning and Reasoning, at the Twenty-Sixth AAAI Conference, Toronto, Ontario, Canada, July 2012. (co-organizer)
Dagstuhl Seminar on Cognitive Approaches for the Semantic Web. Dagstuhl, Germany, May/June 2012. (co-organizer)
NeSy'11, Seventh International Workshop on Neural-Symbolic Learning and Reasoning, at the 22nd International Joint Conference on Artificial Intelligence, Barcelona, Catalonia (Spain), July 2011. (co-organizer)
ESWC2011 AI Mashup Challenge, at the 8th Extended Semantic Web Conference, Heraklion, Greece, May/June 2011. (co-organizer)
NeSy'10, Sixth International Workshop on Neural-Symbolic Learning and Reasoning, at AAAI-10, Atlanta, Georgia, USA, July 2010. (co-organizer)
Dagstuhl Seminar on Learning paradigms in dynamic environments, 2010. (co-organiser)
ESWC2010 AI Mashup Challenge, at the 7th Extended Semantic Web Conference, Heraklion, Greece, May/June 2010. (co-organizer)
NatuReS 2009, 2nd International Workshop on Nature Inspired Reasoning for the Semantic Web, at ISWC2009, October 2009. (organiser) (cancelled)
AST2009, 4th International Workshop on Applications of Semantic Technologies at Informatik2009, Lübeck, Germany, September 2009. (co-organiser)
AI Mashup Challenge 2009, at the 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (co-organiser)
NeSy'09, Fifth International Workshop on Neural-symbolic Learning and Reasoning at IJCAI-09. (organiser)
NatuReS 2008, Nature inspired Reasoning for the Semantic Web at ISWC08, Karlsruhe, Germany, October 2008. (organiser)
AST2008, 3rd International Workshop on Applications of Semantic Technologies at Informatik2008, Munich, Germany, September 2008. (organiser)
NeSy'08, Fourth International Workshop on Neural-symbolic Learning and Reasoning at ECAI2008. (organiser)
ARea2008, Advancing Reasoning on the Web: Scalability and Commonsense. Workshop at ESCWC2008, Teneriffe, Spain, June 2008. (Co-organiser)
Dagstuhl Seminar on Perspectives of Recurrent Neural Networks - Models, Capacities, and Applications, January 2008. (organiser)
FAInt-07, Foundations of Artificial Intelligence, Workshop at KI2007. (organiser)
AST2007, 2nd International Workshop on Applications of Semantic Technologies at Informatik2007, Bremen, Germany, September 2007. (organiser)
NeSy'07, Third International Workshop on Neural-symbolic Learning and Reasoning at IJCAI-07. (organiser)
OWLED2006, Second Workshop OWL - Experiences and Directions. (organizing committee member)
AST2006, 1st International Workshop on Applications of Semantic Technologies at Informatik2006. (organiser)
ICANN06, (special session organiser, Semantic Web Technologies and Neural Networks)
NeSy'06, Second International Workshop on Neural-symbolic Learning and Reasoning at ECAI2006. (organiser)
RoW06, Workshop Reasoning on the Web at WWW2006 (organiser)
FOnt 2005, Workshop on Foundational Aspects of Ontologies at KI 2005. (organiser)
NeSy'05, First International Workshop on Neural-Symbolic Learning and Reasoning at IJCAI-05. (organiser)
Information 2004 Workshop on the Theory of Computation (organiser)
Begabtenförderung-Workshop Tübingen. One-week enhancement programme for 12th/13th grade, Tübingen, March 1998. (organiser)

Panel Chairing

Semantic Web Technologies in the U.S. - five and ten years from now. Panel at the 2019 U.S. Semantic Technologies Symposium, us2ts 2019, Durham, NC, March 2019. Panelists: Daniel Garijo, Anna-Lisa Gentile, Alessandro Oltramari, Peter Patel-Schneider, Tania Tudorache
Addressing Data Heterogeneity in EarthCube Information: A Semantic Building Blocks and Cyberinfrastructure Perspective. Panel at the 2014 EarthCube All-Hands Meeting, Washington D.C., June 2014. Co-chairs: Gary Berg-Cross, Pascal Hitzler, Kerstin Lehnert, Peter Wiebe. Panelists: Anthony Aufdenkampe, Tim Finin, Krzysztof Janowicz, Scott Peckham.
Overcoming Ontology Engineering Bottlenecks II, Ontology Summit 2014 Session 10. Track co-chairs: Krzysztof Janowicz, Pascal Hitzler, Matthew West. Panelists: Oscar Corcho, Dhaval Thakker, Peter Haase. Ontolog online session, March 2014.
Overcoming Ontology Engineering Bottlenecks I, Ontology Summit 2014 Session 04. Track co-chairs: Krzysztof Janowicz, Pascal Hitzler, Matthew West. Panelists: Werner Kuhn, Aldo Gangemi, Karl Hammar. Ontolog online session, February 2014.
Concepts and Foundations of Rules and Ontologies: Logic Programs, Classical Logic, and Semantic Web - II. Co-chairs: Leo Obrst and Pascal Hitzler. Panelists:Markus Krötzsch, Hector Perez-Urbina, Hassan Ait-Kaci, Enrico Franconi. Ontolog online session, November 2013.
Heterogeneity-preserving Data Interoperability: Methods and Challenges. Earth Science Ontolog Mini-series Session-3, Co-chairs: Krzysztof Janowicz and Pascal Hitzler. Panelists: Simon Scheider, Prateek Jain, Benjamin Adams, Giancarlo Guizzardi. Ontolog online session, October 2012.
Applications of Semantic Technologies. Panel at the 2nd International Workshop on Applications of Semantic Technologies, AST2007, at Informatik 2007, Bremen, September 2007. Panelists: Ralf Möller, Massimo Paolucci, Rainer Malaka.
Rules and Ontologies. Panel at the 1st International Conference on Web Reasoning and Rule Systems, RR2007, Innsbruck, Austria, June 2007. Panelists: Nicola Leone, Carsten Lutz, Christian de Sainte Marie, Massimo Paolucci.
Applications of Semantic Technologies. Panel at the 1st International Workshop on Applications of Semantic Technologies, AST2006, at Informatik 2006, Dresden, October 2006. Panelists: Franz Baader, Hans-Peter Schnurr, Walter Waterfeld.
The Future of Reasoning on the Web. Panel at the Workshop on Reasoning on the Web, RoW06, at WWW2006, Edinburgh, May 2006. Panelists: Ed Barkmeyer, Ian Horrocks, Peter Patel-Schneider.

Conference Programme Committee

(listing discontinued)

ISWC 2019, 18th International Semantic Web Conference, Auckland, New Zealand, October 2019. (Resources track).
EKAW 2018, 21st International Conference on Knowledge Engineering and Knowledge Management, Nancy, France, November 2018.
ISWC 2018, 17th International Semantic Web Conference, Monterey, CA, October 2018. (Resources track).
IJCAI-ECAI 2018, 27th International Joint Conference on Artificial Intelligence and the 23rd European Conference on Artificial Intelligence, Stockholm, Sweden, July 2018. (Survey Track)
WWW2018, the Web Conference, Lyon, France, April 2018. (Journal Track)
ISWC 2017, 16th International Semantic Web Confernce, Vienna, Austria, October 2017. (Resources track).
ICACSIS 2017, 9th International Conference on Advanced Computer Science and Information Systems, Bali, Indonesia, October 2017.
ACM Hypertext 2017, The 28th ACM Conference on Hypertext and Social Media, Prague, Czech Republic, July 2017 (Semantic Web and Linked Data track).
4th ESWC 2017, Portoroz, Slovenia, May/June 2017. (Research track)
ISWC 2016, The 15th International Semantic Web Conference, Kobe, Japan, October 2016. (Research track)
ISWC 2016, The 15th International Semantic Web Conference, Kobe, Japan, October 2016. (Resources track)
EKAW 2016, 20th International Conference on Knowledge Engineering and Knowledge Management, Bologna, Italy, November 2016.
ICACSIS 2016, 8th International Conference on Advanced Computer Science and Information Systems, Jakarta, Indonesia, October 2016.
IJCAI-16, 25th International Joint Conference on Artificial Intelligence, New York, USA, July 2016. (PC member, AI and the Web track)
FOIS 2016, 9th International Conference on Formal Ontology in Information systems, Annecy, July 2016. (PC member)
ESWC 2016, Heraklion, Crete, Greece, May/June 2016. (PC Member)
ESWC 2016, Heraklion, Crete, Greece, May/June 2016.(PC Member, Workshops)
LREC 2016, 10th edition of the Language Resources and Evaluation Conference, Portoz, Slovenia, May 2016. (PC member)
KR 2016, 15th International Conference on Principles of Knowledge Representation and Reasoning, Capte Town, South Africa, April 2016.
ISWC 2015, 14th International Semantic Web Conference, Bethlehem, PA, USA, October 2015. (research track)
ISWC 2015, 14th International Semantic Web Conference, Bethlehem, PA, USA, October 2015. (data sets and ontologies track)
K-CAP 2015, 8th International Conference on Knowledge Capture, Palisades, NY, USA, October 2015.
ICACSIS 2015, 7th International Conference on Advanced Computer Science and Information Systems, Jakarta, Indonesia, October 2015.
APE 2015, APE 2015 - Academic Publishing in Europe 10, Berlin, Germany, 20-21 January 2015.
ISWC 2014, 13th International Semantic Web Conference, Riva del Garda, Italy, October 2014.
JELIA2014, 14th European Conference on Logic in Artificial Intelligence, Funchal, Madeira, Portugal, September 2014.
HT2014, ACM Hypertext 2014 (the 25th edition), Santiago de Chile, 1-4 September 2014.
ECAI2014, 21st European Conference on Artificial Intelligence, Prague, Czech Republic, August 2014.
KR 2014, 14th International Conference on Principles of Knowledge Representation and Reasoning, 20-24 July 2014, Vienna, Austria.
FOIS 2014, 8th edition of the International Conference on Formal Ontology in Information Systems, Rio de Janeiro, Brazil, September 2014. (PC member)
APE 2014, 9th APE - Academic Publishing in Europe, Berlin, Germany, 28-29 January 2014.
ESWC2014, 11th ESWC 2014, May/June 2013. (Regular PC)
ESWC2014, 11th ESWC 2014, May/June 2013. (Workshops and Tutorials PC)
FoIKS 2014, Eighth International Symposium on Foundations of Information and Knowledge Systems, Bordeaux, France, March 2014. (PC member)
JIST 2013, Third Joint International Semantic Technology Conference, Seoul, Korea, November 2013. (PC member)
ISWC 2013, 12th International Semantic Web Conference, Sydney, Australia, October 2013. (Posters and Demos track PC)
ICACSIS 2013, 2013 International Conference on Advanced Computer Science and Information Systems, Bali, September 2013. (PC member)
IJCAI-13, 23rd International Joint Conference on Artificial Intelligence, Beijing, China, August 2013. (PC member)
IJCNN 2013, 2013 International Joint Conference on Neural Networks, Dallas, TX, August 2013. (PC member)
AGI-13, The Sixth Conference on Artificial General Intelligence, Beijing, July/August 2013. (PC member)
ICBO'13, 4th International Conference on Biomedical Ontology, Montreal, Qc, Canada, July 2013. (PC member)
ESWC2013, 10th ESWC, Montpellier, France, May/June 2013. (Workshops and Tutorials PC)
PODS 2013, 32th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, New York, U.S.A., June 2013. (External Review Committee member for Semantic, Linked, Networked, and Crowdsourced Data)
WWW2013, 22nd International World Wide Web Conference, Rio de Janeiro, Brazil, May 2013. (PC member)
Hypertext 2013, 24th ACM Conference on Hypertext and Social Media, Paris, France, May 2013. (PC member)
JIST2012, The 2nd Joint International Semantic Technology Conference, Nara, Japan, December 2012. (PC member)
ISWC2012, Semantic Web In Use track, the 11th International Semantic Web Conference, Boston, USA, November 2012. (PC member)
ISWC2012, Posters and Demos track, the 11th International Semantic Web Conference, Boston, USA, November 2012. (PC member)
ODBASE 2012, The 11th International Conference on Ontologies, DataBases, and Applications of Semantics, Rome, Italy, September 2012. (PC member)
ECAI 2012, 20th European Conference on Artificial Intelligence, Montpellier, France, August 2012. (PC member)
RuleML-2012, 6th International Symposium on Rules, Montpellier, France, August 2012. (PC member)
AAAI-12, Twenty-Sixth AAAI Conference, Toronto, Ontario, Canada, July 2012. (PC member)
ICBO2012, 3rd International Conference on Biomedical Ontology, Graz, Austria, July 2011. (PC member)
Hypertext 2012, 23rd ACM Conference on Hypertext and Social Media, Milwaukee, WI, USA, June 2012. (PC member, Semantic Data track)
ESWC2012, 9th Extended Semantic Web Conference, Heraklion, Greece, May 2012. (PC member Research Track and PC member In-Use and Industrial Track)
WWW2012, 21st International World Wide Web Conference, Lyon, France, April 2012. (PC member of the Semantic Web track)
FoIKS 2012, Seventh International Symposium on Foundations of Information and Knowledge Systems, Kiel, Germany, March 2012. (PC member)
JIST2011, Joint International Semantic Technology Conference, Hangzhou, China, December 2011. (PC member)
ICACSIS 2011, International Conference on Advanced Computer Science and Information System 2011, Jakarta, Indonesia, December 2011. (PC member)
RuleML2011@BRF, 5th International RuleML Symposium on Rules, Fort Lauderdale, Floria, USA, November 2011. (PC member)
ISWC2011, Research (main) track of the 10th International Semantic Web Conference, Bonn, Germany, October 2011. (PC member)
ISWC2011, Semantic Web In Use track of the 10th International Semantic Web Conference, Bonn, Germany, October 2011. (PC member)
ISWC2011, Posters and Demos track of the 10th International Semantic Web Conference, Bonn, Germany, October 2011. (PC member)
RR2011, Fifth International Conference on Web Reasoning and Rule Systems, Galway, Ireland, August 2011. (PC member)
AAAI-11, Tutorial Forum of the 25th AAAI Conference on Artificial Intelligence, San Francisco, CA, August 2011. (PC member)
AGI-11, Fourth Conference on Artificial General Intelligence, Mountain View, CA, USA, August 2011. (PC member)
IJCNN2011, 2011 International Joint Conference on Neural Networks, San Jose, California, July/August 2011. (PC member)
ICBO2011, International Conference on Biomedical Ontology, Buffalo, NY, July 2011. (PC member)
WWW2011, 20th International World Wide Web Conference, Hyderabad, India, March/April 2011. (PC member of the Semantic Web track)
DBKDA 2011, The Third International Conference on Advances in Databases, Knowledge, and Data Applications, St. Maarten, The Netherlands Antilles, January 2011. (PC member)
AIMSA2010, 14th International Conference on Artificial Intelligence: Methodology, Systems, Applications, Varma, Bulgaria, September 2010. (PC member)
ECAI2010, 19th European Conference on Artificial Intelligence, Lisboa, Portugal, August 2010. (PC member)
AAAI-10, Twenty-Fourth AAAI Conference on Artificial Intelligence, Atlanta, Georgia, USA, July 11-15, 2010. (PC member)
ILP 2010, 20th International Conference on Inductive Logic Programming, Firenze, Italy, June 2010. (PC member)
ESWC2010, 7th Extended Semantic Web Conference, Heraklion, Greece, May/June 2010. (PC member)
ICCS 2010, 18th International Conference on Conceptual Structures, 2010. (PC member)
DBKDA 2010, The Second International Conference on Advances in Databases, Knowledge, and Data Applications, Menuires, The Three Valleys, France, April 2010. (PC member)
WEBIST 2010, 6th International Conference on Web Information Systems and Technologies, Valencia, Spain, April 2010. (PC member)
GeoS 2009, International Conference on Geospacial Semantics, Mexico City, Mexico, December 2009. (PC member)
ISWC 2009, 8th International Semantic Web Conference, Washington, DC, October 2009. (PC member)
SEMAPRO 2009, The Third International Conference on Advances in Semantic Processing, Sliema, Malta, October 2009. (PC member)
ISDT2009, 5th International Symposium on Domain Theory, Shanghai, China, September 2009. (PC member)
SUM2009, Third International Conference on Scalable Uncertainty Management, Washington D.C., September 2009. (PC member)
IJCAI-09, 21st International Joint Conference on Artificial Intelligence, Pasadena, California, July 2009. (PC member)
IJCNN 2009, 2009 International Joint Conference on Neural Networks, Atlanta, GA, June 2009. (official reviewer)
DBKDA 2009, The First International Conference on Advances in Databases, Knowledge, and Data Applications, Cancun, Mexico, March 2009. (PC member)
WEBIST 2009, 5th International Conference on Web Information Systems and Technologies, Lisboa, Portugal, March 2009. (PC member)
CiE 2009, Computability in Europe, Heidelberg, Germany, June 2009. (PC member)
ASWC2008, 3rd Asian Semantic Web Conference, Pathumthani, Thailand, December 2008. (PC member)
ISWC2008, 7th International Semantic Web Conference, Karlsruhe, Germany, October 2008. (PC member)
SBIA 2008, 19th Brazilian Symposium on Artificial Intelligence, Salvador, Bahia, Brazil, October 2008. (PC member)
JELIA 2008, 11th European Conference on Logics in Artificial Intelligence, Dresden, Germany, October 2008. (PC member)
SUM 2008, Second International Conference on Scalable Uncertainty Management, Napoli, Italy, October 2008. (PC member)
KR-08, 11th International Conference on Principles of Knowledge Representation and Reasoning, Sydney, Australia, September 2008. (PC member)
ECAI2008, 18th European Conference on Artificial Intelligence, Patras, Greece, July 2008. (PC member)
ESWC2008, 5th International Semantic Web Conference, Teneriffe, Spain, June 2008. (PC member)
FICS'08, Foundations of Informatics, Computing, and Software, Shanghai, China, June 2008. (PC member)
WEBIST 2008, 4th International Conference on Web Information Systems and Technologies, Funchal, Madeira, Portugal, May 2008. (PC member)
WWW2008, 17th International World Wide Web Conference, Beijing, China, April 2008. (PC member of Semantic Web Track)
ICTAI 2007, IEEE International Conference on Tools with Artificial Intelligence. (PC member)
CONTEXT 07, Sixth International and Interdisciplinary Conference on Modeling and Using Context. (PC member)
IJCNN 2007, 2007 International Joint Conference on Neural Networks. (PC member)
ESWC2007, 4th International Semantic Web Conference. (PC member)
WWW2007, 16th International World Wide Web Conference. (PC member of Semantic Web track)
WEBIST 2007, 3rd International Conference on Web Information Systems and Technologies, Barcelona, Spain, March 2007. (PC member)
IJCAI-07, 20th International Joint Conference on Artificial Intelligence. (official reviewer)
RuleML2006, Second International Conference on Rules and Rule Markup Languages for the Semantic Web. (PC member)
ICANN06, International Conference on Artificial Neural Networks (PC member)
MFCSIT06, Fourth Irish Conference on the Mathematical Foundations of Computer Science and Information Technology. (PC member)
ESWC06 research track, 3rd European Semantic Web Conference. (PC member)
ESWC06 Poster/Demo session, 3rd European Semantic Web Conference Poster/Demo session. (PC member)
AIMSA2006, 12th International Conference on Artificial Intelligence: Methodology, Systems, Applications. (PC member)
ICCS 2005, 13th International Conference on Conceptual Structures (PC member)

Lectures at Summer Schools

ICCL Summer School 2013 on Semantic Web - Ontology Languages and Their Use, Dresden, Germany, August 2013. (lecturer, Ontologies and Rules)
ESSLLI 2008 (lecturer, Integrating Logic Programs and Connectionist Systems)
ESSLLI 2006 (lecturer, Approximate Reasoning for the Semantic Web )
ICCL Summer School 2006 on Knowledge Structures. (lecturer, Knowledge, Reasoning, and the Semantic Web)
IK2006, Interdisciplinary College. (lecturer, Neural-symbolic learning and reasoning)
ESSLLI 2005 (lecturer, Integrating Logic Programs and Connectionist Systems)

Tutorials at Conferences

Monireh Ebrahimi, Bassem Makni, Aaron Eberhart, Federico Bianchi, Amir Hossein Yazdavar, Pascal Hitzler, Tutorial at IJCAI 2020: Current and Future Trends of Neural Knowledge Graph Representation and Reasoning
Pascal Hitzler, Derek Doran, Freddy Lecue, Md. Kamruzzaman Sarker, Ning Xie, On the Role of Data Semantics for Explainable AI. Tutorial at the 2nd U.S. Semantic Technologies Symposium, us2ts 2019, Durham, NC, March 2019.
Luca Costabello, Freddy Lecue, Fosca Giannotti, Riccardo Guidotti, Pascal Hitzler, Pasquale Minervini, Md. Kamruzzaman Sarker, On Explainable AI: From Theory to Motivation, Applications and Limitations. Tutorial at the Thirty-Third AAAI Conference on Artificial Intelligence, AAAI-19, Honolulu, Hawaii, USA, January 2019.
Tutorial on Methods and Tools for Modular Ontology Modeling. Tutorial at the 17th International Semantic Web Conference, ISWC 2018, Monterey, CA, USA, October 2018. Part by Pascal Hitzler on Methods and Tools for Modular Ontology Modeling.
(slides part 1 (pdf)) (slides part 2 (pdf)) (slides part 3 (pdf))
Tutorial on Modular Ontology Modeling with Ontology Design Patterns at ESWC 2017.
Tutorial on Ontology Design Patterns for Linked Data Publishing at ISWC 2016.
AI for Smarter Cities. Hype or reality? Tutorial at IJCAI-16, 25th International Joint Conference on Artificial Intelligence, New York City, NY, USA, July 2016.
ISWC2010, 9th International Semantic Web Conference, Shanghai, November 2010. (Tutorial on OWL 2 - Theory and Practice)
Informatik 2009, 39th Annual Conference of the Gesellschaft für Informatik, Lübeck, Germany, September/October 2009. (Tutorial, Semantic Web Ontology Languages)
KI 2009, 32nd Annual Conference on Artificial Intelligence, Paderborn, Germany, September 2009. (Tutorial, Knowledge Representation and Reasoning for the Semantic Web - OWL 2 and Rules)
IJCAI-09, (tutorial, Semantic Web Ontology Languages)
ESWC2009, 6th European Semantic Web Conference, May/June 2009, Heraklion, Crete, Greece. (tutorial on OWL 2 Rules)
ISWC2006, (tutorial, Context Sensitivity in Knowledge Rich Systems)
ICANN06, (tutorial, Knowledge Technologies, Hybrid Approaches and Neural Networks)
ESWC06 (tutorial, Practical Reasoning with OWL and DL-Safe Rules)
KI 2005 (tutorial, Connectionist Knowledge Representation and Reasoning)

Journal Special Issues (EB member)

(listing discontinued)

IJSWIS special issue on Semantic Media Adaptation & Personalization
International Journal of Semantic Computing, special issue on Web Scale Reasoning: scalable, tolerant and dynamic.
GLDV-Journal for Computational Linguistics and Language Technology, special issue on ontologies in text technology.
Fundamenta Informaticae special issue on RuleML-2006.
IJSWIS special issue on ontology matching.

Workshop Programme Committee

(listing discontinued)

NeSy'19, 14th International Workshop on Neural-Symbolic Learning and Reasoning, at IJCAI-19, Macau, China, August 2019.
DL4KG, Workshop on Deep Learning for Knowledge Graphs, at ESWC 2019, Portoroz, Slovenia, June 2019.
SEMEX 2019, 1st Workshop on Semantic Explainability, at the 13th IEEE International Conference on Semantic Computing (ICSC 2019), Newport Beach, California, USA, January/February 2019.
DECOR 2019, The Second Workshop on Data Engineering meets intelligent food and Cooking Recipes, at the 35th IEEE Conference on Data Engineering (ICDE 2019), Macau SAR, China, April 2019.
IWBIS 2018, International Workshop on Big Data and Information Security, Depok, Indonesia, May 2018.
PrivOn 2017, Society, Privacy and the Semantic Web – Policy and Technology, at ISWC 2017, Vienna, Austria, October 2017.
Re-Coding Black Mirror, at ISWC 2017, Vienna, Austria, October 2017.
SAVE-SD 2017, Workshop on Semantics, Analytics, Visualisation: Enhancing Scholarly Data, at WWW2017, Perth, Australia, April 2016 (Senior PC member).
OWLED - ORE 2016, 13th OWL: Experiences and Directions Workshop and 5th OWL reasoner evaluation workshop, Bologna, Italy, November 2016.
PrivOn 2016, Society, Privacy and the Semantic Web – Policy and Technology, at ISWC 2016,Kobe, Japan, October 2016.
IWBIS, InternationalWorkshop on Big Data & Information Security, Jakarta, Indonesia, October 2016.
SAVE-SD 2016, Workshop on Semantics, Analytics, Visualisation: Enhancing Scholarly Data, at WWW2016, Montreal, Canada, April 2016 (Senior PC member).
OWLED 2015, 12th OWL: Experience and Directions Workshop, Bethlehem, Pennsylvania, USA, October 2015.
WoMO 2015, 9th International Workshop on Modular Ontologies, at IJCAI-15, Buenos Aires, Argentina, July 2015. (PC member)
CIGAR 2014, Workshop on Concept Invention, Generation, Adaption, and Representation, at FOIS 2014 in Rio de Janeiro, Brazil, September 2014. (PC member)
DL2014, 27th International Workshop on Description Logics, Vienna, Austria, July 2014. (PC member)
SSWS2013, 9th International Workshop on Scalable Semantic Web Knowledge Base Systems - at ISWC 2013 in Sydney, Australia, October 2013. (PC member)
SDA 2013, 3rd International Workshop on Semantic Digital Archives, Valetta, Malta, September 2013. (PC member)
FCA4AI-2013, Workshop on What can FCA do for Artificial Intelligence? at IJCAI-13, Beijing, China, August 2013. (PC Member)
DL2013, 26th International Workshop on Description Logics, Ulm, Germany, July 2013. (PC Member)
OWLED2013, Tenth International Workshop OWL: Experiences and Directions, Montpellier, France, May 2013, at ESWC2013. (PC member)
LHD2012, Discovering Meaning "On the Go" in Large and Heterogeneous Data, at ISWC2012, Boston, USA, November 2012. (PC Member)
SemQuant2012, Workshop on Quantitative Formalization in the Semantic Web, at ISWC2012, Boston, USA, November 2012. (PC member)
EvoDyn 2012, Joint Workshop on Knowledge Evolution and Ontology Dynamics at, ISWC 2012, Boston, USA, November 2012. (PC member)
GIBDA2012, Workshop on GIScience in the Big Data Age 2012, at the seventh International Conference on Geographic Information Science 2012, GIScience 2012, Columbus, Ohio, USA, September 2012. (PC member)
SDA2012, 2nd International Workshop on Semantic Digital Archives, Paphos, Cyprus, September 2012. (PC member)
OAIS'2012, International Workshop on Ontologies meet Advanced Information Systems, at ADBIS'2012, Poznan, Poland, September 2012. (PC member)
AI@IE 2012, Workshop on AI Problems and Approaches for Intelligent Environments, at ECAI 2012, Montpellier, France, August 2012. (PC member)
FCA4AI, What can FCA do for Artificial Intelligence? Workshop at at ECAI 2012, Montpellier, France, August 2012. (PC member)
OWLED2012, Ninth International Workshop OWL: Experiences and Directions, Heraklion, Crete, Greece, May 2012, at the 9th Extended Semantic Web Conference, ESWC2012. (PC member)
STIIC 2012, 3rd International Workshop on Semantic Technologies for Information-Integrated Collaboration, at the 2012 International Conference on Collaboration Technologies and Systems, CTS 2012, Denver, Colorado, U.S.A., May 2012. (PC member)
OrdRing, Ordering and Reasoning, workshop at the 10th International Semantic Web Conference, ISWC2011, Bonn, Germany, October 2011. (PC member)
OCAS2011, Ontologies come of Age in the Semantic Web, at the 10th International Semantic Web Conference, ISWC2011, Bonn, Germany, October 2011. (Challenge judge)
SSWS2011, 7th International Workshop on Scalable Semantic Web Knowledge Base Systems - co-located with the 10th International Semantic Web Conference, ISWC2011, Bonn, Germany, October 2011. (PC member)
AST2011, 6th Workshop Applications of Semantic Technologies, at Informatik 2011, Gerlin, Germany, October 2011. (PC member)
DKB2011, 3rd Workshop on dynamics of Knowledge and Belief, at the 34th Annual Conference on Artificial Intelligence, KI-2011, Berlin, Germany, October 2011. (PC member)
SDA2011, International Workshop on Semantic Digital Archives, at the 15th International Conference on Theory and Practice of Digital Libraries, TPDL2011, Berlin, Germany, September 2011.
LHD-11, Discovering Meaning On the Go in Large and Heterogenous Data, Workshop at IJCAI-11, Barcelona, Catalonia, July 2011. (PC member)
DL2011, 24th International Workshop on Description Logics, Barcelona, Catalonia, July 2011. (PC member)
DKRC2011, Deep Knowledge Representation Challenge Workshop, at the Sixth International Conference on Knowledge Capture, K-CAP2011, Banff, Alberta, Canada, June 2011. (PC member)
OWLED 2011, OWL: Experiences and Directions, Eigth International Workshop, San Francisco, CA, USA, June 2011.
SSWS2010, 6th International Workshop on Scalable Semantic Web Knowledge Base Systems - co-located with the 9th International Semantic Web Conference, ISWC2010, Shanghai, November 2010.
BuRO 2010, 1st International Workshop on Business Models, Business Rules and Ontologies - co-located with the 4th International Conference on Web Reasoning and Rule Systems, RR2010, Bressanone/Brixen, Italy, September 22-24, 2010.
LSTD2010, Workshop on Linked Spatiotemporal Data - co-located with the 6th International Conference on Geographic Information Science, GIScience2010, Zürich, Switzerland, September 2010.
OWLED2010, Seventh International Workshop OWL: Experiences and Directions, San Francisco, CA, June 2010.
NeFoRs'10, New forms of Reasoning for the Semantic Web: Scalable and Dynamic - 7th Extended Semantic Web Conference, ESWC2010, Heraklion, Greece, May/June 2010.
DL2010, 23rd International Workshop on Description Logics, Waterloo, Canada, May 2010. (PC member)
WoMO2010, Workshop on Modular Ontologies - 6th International Conference on Formal Ontology in Information Systems, FOIS 2010, Toronto, Canada, May 2010. (PC member)
SeMuDaTe2009, Workshop on Semantic Multimedia Database Technologies - 10th International Workshop of the Multimedia Metadata Community, Graz, Austria, December 2009. (PC member)
SWSC09, 8th Semantic Web Services Challenge Workshop, at the Seventh IEEE European Conference on Web Services, Eindhoven, The Netherlands, November 2009. (PC member)
COLA09, Computational Logic with Applications, thematic track at EPIA 2009, the Fourteenth Portuguese Conference on Artificial Intelligence, Aveiro, Portugal, October 2009. (PC member)
KDBI09, Knowledge Discovery and Business Intelligence, thematic track at EPIA 2009, the Fourteenth Portuguese Conference on Artificial Intelligence, Aveiro, Portugal, October 2009. (PC member)
ASA 2009, Assistenzsysteme im Alltag: Von der Forschung in die Praxis, at Informatik 2009, Lübeck, Germany, September/October 2009. (PC member)
RAKRL09, Relational Approaches to Knowledge Representation and Learning, at the 32nd Annual conference on Artificial Intelligence, Paderborn, Germany, September 2009. (PC member)
DL2009, 22nd International Workshop on Description Logics, Oxford, UK, July 2009. (PC member)
SWS-Challenge 2009, 8th Semantic Web Services Challenge Workshop, at the 5th European Conference on Model-Driven Architecture Foundations and Applications, ECMDA2009, Enschede, The Netherlands. (PC member)
IRMLeS, Inductive reasoning and machine learning on the semantic web, at ESWC09, Heraklion, Greece, May 2009. (PC member)
"Semantics for the Rest of Us" - Variants of RDF and OWL in the Real Worlds, at WWW09, Madrid, Spain, April 2009.
SSWS2008, Fourth International Workshop on Scalable Semantic Web Knowledge Base Systems, Karlsruhe, Germany, October 2008. (PC member)
iCEP-FIS08, 1st International Workshop on Complex Event Processing for the Future Internet, at the Future Internet Symposium, Vienna, Austria, September 2008. (PC member)
NEFORS 2008, Workshop on New forms of reasoning for the Semantic Web: scalable, tolerant and dynamic, at the 3rd Asian Semantic Web Conference, ASWC2008, Pathumthani, Thailand, December 2008. (PC member)
C&O-2008, 4th International Workshop on Contexts and Ontologies, at ECAI2008, Patras, Greece, July 2008. (PC member)
WORM-08, International Workshop on Ontologies: Reasoning and Modularity, at ESWC2008, Teneriffe, Spain, June 2008. (PC member)
DL2008, 2008 International Workshop on Description Logics, Dresden, Germany, May 2008.
AAAI 2008 Spring Symposium on AI Meets Business Rules and Process Management, Stanford, CA, USA, March 2008. (PC member)
SWAP2007, Semantic Web Applications and Perspectives, 4th Italian Semantic Web Workshop, Bari, Italy, December 2007. (PC member)
SSWS2007, Third International Workshop on Scalable Semantic Web Knowledge Base Systems, Vilamoura, Algarve, Portugal, November 2007. (PC member)
Workshop on Modular Ontologies, 4th International Conference on Knowledge Capture, Whistler, BC, October 2007. (PC member)
ALPSWS2007, 2nd International Workshop on Applications of Logic Programming to the Web, Semantic Web and Semantic Web Services at ICLP2007, Porto, Portugal, September 2007. (PC member)
SemInfra2007, First Workshop on Web Scale Infrastructures for Semantic Mashup, Search and Retrieval. (PC member)
FBTC2007, From Biology To Concurrency and Back, Workshop at CONCUR2007, Lisboa, Portugal, September 2007. (PC member)
SWAP 2006, Semantic Web Applications and Perspectives, 3rd Italian Semantic Web Workshop, Pisa, Italy, December 2006. (PC member)
SMAP 2006, 1st International Workshop on Semantic Media Adaptation and Personalization, December 5th, 2006, Athens, Greece. (PC member)
WoMO2006, First International Workshop on Modular Ontologies at ISWC2006, Athens, Georgia. (PC member)
SSWS2006, Second International Workshop on Scalable Semantic Web Knowledge Base Systems at ISWC2006, Athens, Georgia. (PC member)
Workshop on Imperfect Knowledge Modeling, Podebrady, Czech Republic, October 2006. (PC member)
ALPSWS2006, International Workshop on Applications of Logic Programming in the Semantic Web and Semantic Web Services. (PC member)
Semantic Web Personalization Workshop, 3rd European Semantic Web Conference. (PC member)
WSPI 2006, Third International Workshop on Philosophy and Informatics. (PC member)

PhD Symposium and Student Conference Programme Committees

(listing discontinued)

Doctoral Consortium at ISWC 2017, 16th International Semantic Web Conference, Vienna, Austria, October 2017.
Doctoral Consortium at ISWC 2016, 15th International Semantic Web Conference, Kobe, Japan, October 2016.
ESWC 2016, Heraklion, Crete, Greece, May/June 2016.(PC Member, Doctoral Consortium)
Doctoral Consortium at ISWC2015, 14th International Semantic Web Conference, Bethlehem, PA, October 2015. (PC member)
Doctoral Consortium at ISWC2014, 13th International Semantic Web Conference, Riva del Garda, Italy, October 2014. (PC member)
Doctoral Consortium at the 7th International Conference on Web Reasoning and Rule Systems, RR2013, Mannheim, Germany, July 2013. (PC member and host at the mentoring lunch)
PhD Symposium at the 10th ESWC 2013, Montpellier, France, May 2013. (PC member)
Doctoral Consortium at the 6th International Conference on Web Reasoning and Rule Systems, RR2012, Vienna, Austria, September 2012. (PC member)
PhD Symposium at the 9th Extended Semantic Web Conference, ESWC2012, Heraklion, Greece, May 2012. (PC member)
PhD Symposium at the 8th Extended Semantic Web Conference, ESWC2011, Heraklion, Greece, May 2011. (PC member)
PhD Symposium at the 6th European Semantic Web Conference, ESWC2009, Heraklion, Greece, May 2009. (PC member and mentor)
ISCAM 2008, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2008.
ISCAM 2007, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2007.
EACL2006 Student Research Workshop at the 11th Annual Meeting of the EACL, EACL 2006.
ISCAM 2006, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2006.
ISCAM 2005, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2005.
ISCAM 2004, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2004.
ISCAM 2003, Conference in Applied Mathematics for undergraduate and graduate students, Bratislava, Slovak Republic, April 2003.

Standardisation Activities

Member of the OWL (Web Ontology Language) Working Group.
Member of the W3C Rule Interchange Format Working Group.

Faculty Committees at Wright State University

2018/19: College Steering Committee (elected)
2018/19: Department Steering Committee (elected)
2018/19: College Faculty Development Committee (elected)
2018/19: Department Graduate Studies Committee
2018/19: Department Faculty Development Committee
2017/18: Department Graduate Studies Committee
2017/18: Department Faculty Development Committee
2016/17: Department Steering Committee (elected)
2016/17: Department Graduate Studies Committee
2015/16: Department Steering Committee (elected)
2015/16: University re-accreditation subcommitte Teaching and Learning: Quality, Resources, and Support
2015/16: Department Selection Committee for Postdoctoral Researcher
2015/16: Department Graduate Studies Committee
2015/16: Department Faculty Development Committee
2014/15: University re-accreditation subcommitte Teaching and Learning: Quality, Resources, and Support
2014/15: University Commencement Committee
2014/15: Department Graduate Program Director Selection Committee
2014/15: Department Faculty Development Committee
2014/15: Department Graduate Studies Committee
2013/14: University re-accreditation subcommitte Teaching and Learning: Quality, Resources, and Support
2013/14: University Commencement Committee
2013/14: Department Faculty Search Committee: Big Data (chair)
2013/14: Department Faculty Search Committee: CyberSecurity
2013/14: Department Steering Committee (elected)
2013/14: Department Faculty Development Committee
2013/14: Department Graduate Studies Committee
2012/13: University Building and Grounds Committee
2012/13: Department Steering Committee (elected)
2012/13: Department Faculty Development Committee
2012/13: Department Faculty Search Committee: Big Data (chair)
2012/13: Department Graduate Studies Committee
2011/12: Department Faculty Search Committee
2011/12: Department Graduate Studies Committee
2010/11: Department Graduate Studies Committee
2010/11: Department ad-hoc committee for developing a new introductory sequence to discrete structures (chair).
2009/10: Department Graduate Studies Committee

Miscellaneous

Founding member of the us2ts steering committee (as chair), founded in 2018.
Founding member of the Web Reasoning and Rule Systems Conference Association e.V. (as vice-president).
Founding member of the Neural-Symbolic Learning and Reasoning Association, founded in 2014 (as steering committee member).
Founding member of the Förderverein Semantische Technologien e.V., Karlsruhe.
Teacher at the Semantic Web Akademie.
Guest Scientist of the FZI Forschungszentrum Informatik.
Collaborator of the Boole Centre for Research in Informatics, National University of Ireland, University College Cork, Ireland.
ESWC2008 Demonstrations Track, 5th International Semantic Web Conference Demonstrations Track, Teneriffe, Spain, June 2008. (PC member)
BCU Mathematics Contest. International Enhancement Programme Maths Competition, March 2001, 2000, 1999. (organisation and execution in Cork, Irland (with Prof. Dr. F. Holland), and making of problem set (with Prof. Dr. F. Holland and Prof. Dr. G. Kalmbach))
Intensivkurs Mathematik. Two-week enhancement programme for 12th/13th grade, Ulm 2001, Donaueschingen 2000, 1999, 1998, 1997, 1996. (assistant for organization and execution)