Co-chair of 4th International Workshop on Logic and Search (LaSh 2014), Vienna, Austria, July 18, 2014.
Senior PC member of 22nd International Joint Conference on Artificial Intelligence (IJCAI-11), Barcelona, Spain, July 16-22, 2011
34th International Joint Conference on Artificial Intelligence (IJCAI 2025), August 16-22, 2025, Montreal, Canada
21st International Conference on Principles of Knowledge Representation and Reasoning (KR 2024), November 2-8, 2024 Hanoi, Vietnam (In The Wild Track)
26th International Symposium on Practical Aspects of Declarative Languages (PADL 2024), January 14-20, 2024, London, United Kingdom
33rd International Joint Conference on Artificial Intelligence (IJCAI 2024), August 3-9, 2024, Jeju Island, South Korea
20th International Conference on Principles of Knowledge Representation and Reasoning (KR 2023), September 2-8, 2023, Rhodes, Greece
32nd International Joint Conference on Artificial Intelligence (IJCAI 2023), August 19-25, 2023, Macao, S.A.R
39th International Conference on Logic Programming (ICLP 2023), July 9-15, 2023, London, UK
31st International Joint Conference on Artificial Intelligence (IJCAI 2022), July 23-29, 2022, Vienna, Austria
36th Conference on Artificial Intelligence (AAAI 2022), Vancouver, Canada, February 22-March 1, 2022
35th Conference on Artificial Intelligence (AAAI 2021), virtual conference, February 2-9, 2021
9th International Conference on Learning Representations (ICLR 2021), Vienna, Austria, May 4-8, 2021
17th International Conference on Principles of Knowledge Representation and Reasoning (KR 2020), Recent Published Research Track, Rhodes, Greece, September 12-18, 2020
35th International Conference on Logic Programming (ICLP 2020), Rende, Italy, September 18-24, 2020
24th European Conference on Artificial Intelligence (ECAI 2020), Santiago de Compostela, Spain, June 8-12, 2020
34th Conference on Artificial Intelligence (AAAI 2020), New York, New York, USA, February 7 - 12, 2020
33rd Annual Conference on Neural Information Processing Systems (NeurIPS 2019), Vancouver, Canada, December 9-14, 2019 (reviewer)
35th International Conference on Logic Programming (ICLP 2019), Las Cruces, New Mexico, USA, September 21-25, 2019
28th International Joint Conference on Artificial Intelligence (IJCAI 2019), Macao, China, August 10-16, 2019
26th International Conference on Machine Learning (ICML 2019), Long Beach, USA, June 10-15, 2019 (reviewer)
15th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2019), Philadelphia, USA, June 4-7, 2019
33rd Conference on Artificial Intelligence (AAAI 2019), Honolulu, Hawaii, USA, January 27 - February 1, 2019
21th International Symposium on Practical Aspects of Declarative Languages (PADL 2019), Lisbon, Portugal, January 14-15, 2019
32nd Annual Conference on Neural Information Processing Systems (NeurIPS 2018), Montreal, Canada, December 3-8, 2018 (reviewer)
KDD 2018 Workshop on Interactive Data Exploration and Analytics (IDEA 2018), London, UK, August 20, 2018
10th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2018), Oxford, UK, July 18, 2018
32nd Conference on Artificial Intelligence (AAAI-18), New Orleans, Louisiana, USA, February 2-7, 2018
Workshop on Interactive Data Exploration and Analytics (IDEA 2017), Halifax, Nova Scotia, Canada, August 14, 2017
26h International Joint Conference on Artificial Intelligence (IJCAI-17), Melbourne, Australia, August 19-25, 2017
14th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2017), Espoo, Finland, July 3-6, 2017
Workshop on Trends and Applications of Answer Set Programming (TAASP 2016), Klagenfurt, Austria, September 26, 2016
18th International Symposium on Principles and Practice of Declarative Programming (PPDP 2016), Edinburgh, UK, September 5-7, 2016
25th International Joint Conference on Artificial Intelligence (IJCAI-16), New York, USA, July 9-15, 2016
12th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR 2015), Lexington, KY, USA September 27-30, 2015
3rd Workshop on Grounding, Transforming, and Modularizing Theories with Variables (GTTV 2015), Lexington, KY, USA September 27, 2015
31st International Conference on Logic Programming (ICLP 2015), Cork, Ireland, August 31 - September 4, 2015
8th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2015), Cork, Ireland, August 31, 2015
7th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2014), Vienna, Austria, July 23, 2014
6th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2013), Istanbul, Turkey, August 25, 2013
5th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2012), Budabest, Hungary, September 4, 2012
13th International Conference on Principles of Knowledge Representation and Reasoning (KR 2012), Rome, Italy, June 10-14, 2012
27th International Conference on Logic Programming (ICLP 2011), Lexington, Kentucky USA, July 6-10, 2011
4th Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2011), Lexington, Kentucky USA, July 10, 2011
1st Workshop on Grounding and Transformations for Theories with Variables (GTTV 2011), Vancouver, Canada, May 2011
24th Conference on Artificial Intelligence (AAAI-10), Atlanta, Georgia, USA, July 11-15, 2010
3rd Workshop on Answer Set Programming and Other Computing Paradigms (ASPOCP 2010), Edinburgh, UK, July 20, 2010
4th International Workshop on Answer Set Programming (ASP 2007), Porto, Portugal, September 8 and 13, 2007
Workshop on Correspondence and Equivalence for Nonmonotonic Theories (CENT 2007), Tempe, Arizona, USA, May 14-16, 2007
Publicity chair of JELIA 2010, 12th European Conference on Logics in Artificial Intelligence, September 13-15, 2010, Helsinki, Finland
Coordinator for Information and Computer Science Forum (ICS Forum) at Aalto University, August-December, 2009
Geoscientific Model DevelopmentMD): 2023, 2022, 2021
Theory and Practice of Logic Programming (TPLP): 2020, 2019, 2018, 2015, 2008
Journal of Artificial Intelligence Research (JAIR): 2019, 2018, 2015, 2014, 2013
Journal of Logic and Computation (JLC): 2020, 2015, 2008
New Generation Computing: 2018
Artificial Intelligence: 2012
AI Communications: 2010
ACM Transactions on Computational Logic (TOCL): 2010, 2009
Mathematical Reviews (MR): 2009 - 2015
International Conference on Integration of Artificial Intelligence and Operations Research Techniques in Constraint Programming (CPAIOR): 2016
Conference on Artificial Intelligence (AAAI): 2016, 2011
International Conference on Theory and Applications of Satisfiability Testing (SAT): 2015, 2014
International Symposium on Principles and Practice of Declarative Programming (PPDP): 2013
RCRA International Workshop on "Experimental Evaluation of Algorithms for Solving Problems with Combinatorial Explosion": 2013
International Conference on Logic Programming and Non Monotonic Reasoning (LPNMR): 2013, 2011, 2005
International Workshop on Non-Monotonic Reasoning (NMR): 2012
International Conference on Scalable Uncertainty Management (SUM): 2011
European Conference on Logics in Artificial Intelligence (JELIA): 2010, 2008, 2004
International Conference on Principles of Knowledge Representation and Reasoning (KR): 2008
International Conference on Logic Programming (ICLP): 2005, 2004
Answer Set Programming: Advances in Theory and Implementation (ASP): 2005
International Conference on Logic for Programming Artificial Intelligence and Reasoning (LPAR): 2005