Book chapters:

A Database-type Approach for Progressing Action Theories with Bounded Effects, Stavros Vassos, Sebastian Sardina, In Gerhard Lakemeyer and Sheila McIlraith, editors, Knowing, Reasoning, and Acting: Essays in Honour of Hector J. Levesque, College Publications, 2011.
[pdf | citeulike | more]

Refereed Journal Publications:

How to progress a database III, Stavros Vassos, Hector Levesque, Artificial Intelligence Journal (AIJ), Vol. 195(0), 10.1016/j.artint.2012.10.005, 2013.
[pdf | citeulike | more]

Refereed Conference Publications:

A Classification of First-Order Progressable Action Theories in Situation Calculus, Vassos Stavros, Fabio Patrizi, In Proceedings of the 23rd International Joint Conference on Artificial Intelligence (IJCAI-2013), Beijing, China, 2013.
[pdf | citeulike | slides | academia.edu]

Planning with a Task Modeling Framework in Manufacturing Robotics, Jacob Huckaby, Vassos Stavros, Henrik I. Christensen, In Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS-2013), Tokyo, Japan, 2013.
[pdf | citeulike | slides | academia.edu]

Benchmarking Smart Spaces Through Autonomous Virtual Agents (Extended Abstract), Mario Caruso, Francesco Leotta, Massimo Mecella, Vassos Stavros, In Proceedings of the 12th International Conference on Autonomous Agents and Multiagent Systems (AAMAS-2013), Saint Paul, USA, 2013.
[pdf | citeulike | slides |academia.edu]

Combining deliberation and reactive behavior for AI players in the Mini-Tichu card-game, Martha Vlachou-Konchylaki, Stavros Vassos, In Proceedings of the 8th International Conference on the Foundations of Digital Games (FDG-2013), Chania, Greece, 2013.
[pdf | citeulike | slides | academia.edu]

iThink: A Library for Classical Planning in Video-games, Vassileios-Marios Anastassiou, Panagiotis Diamantopoulos, Stavros Vassos, Manolis Koubarakis, In Proceedings of the 7th Hellenic Conference on Artificial Intelligence (SETN-2012), Lamia, Greece, 2012.
[pdf | citeulike | slides | academia.edu]

First-Order Strong Progression for Local-Effect Basic Action Theories, Stavros Vassos, Gerhard Lakemeyer, and Hector Levesque, In Proceedings of the 11th International Conference on Principles of Knowledge Representation and Reasoning (KR-2008), Sydney, Australia, 2008.
[pdf | citeulike | slides | more]

On the Progression of Situation Calculus Basic Action Theories: Resolving a 10-year-old Conjecture, Stavros Vassos and Hector Levesque, In Proceedings of the Twenty-Third AAAI Conference on Artificial Intelligence (AAAI-2008), pages 1004-1009, Chicago, Illinois, USA, 2008.
[! Selected for the AAAI-08 Outstanding Paper Honorable Mention Award !]
[pdf | citeulike | slides | more]

Progression of Situation Calculus Action Theories with Incomplete Information, Stavros Vassos and Hector Levesque, In Proceedings of the 20th International Joint Conference on Artificial Intelligence (IJCAI-2007), pages 2024–2029, Hyderabad, India, 2007.
[pdf | citeulike | slides | more]

Refereed Workshop Publications:

Planning for Interactive Storytelling Processes, Stefano Cianciulli, Stavros Vassos, In Proceedings of the 3rd International Planning in Games Workshop (PG-2012), 2014, Rome, Italy, 2013.
[pdf | citeulike| slides academia.edu ]

Action-Based Imperative Programming with YAGI, Alexander Ferrein, Gerald Steinbauer, Stavros Vassos, In Proceedings of the 8th International Workshop on Cognitive Robotics (CogRob-2012), 2012, Toronto, Canada, 2012.
[pdf | citeulike| slides | slidesharemore]

The SimpleFPS Planning Domain: A PDDL Benchmark for Proactive NPCs, Stavros Vassos, Michail Papakonstantinou, In Proceedings of  the Non-Player Character AI workshop (NPCAI-2011) of the Artificial Intelligence & Interactive Digital Entertainment (AIIDE-2011) Conference, Stanford CA, USA, 2011.
[pdf | citeulike | slides | slidesharemore]

Challenges for Qualitative Spatial Reasoning in Linked Geospatial Data, Manolis Koubarakis, Kostis Kyzirakos, Manos Karpathiotakis, Charalampos Nikolaou, Michael Sioutis, Stavros Vassos, Dimitrios Michail, Themistoklis Herekakis, Charalampos Kontoes and Ioannis Papoutsis, In Proceedings of the IJCAI 2011 Workshop on Benchmarks and Applications of Spatial Reasoning (BASR-2011), Barcelona, Spain, 2011.
[pdf | citeulike | slides | more]

Progressing basic action theories with non-local effect actions, Stavros Vassos, Sebastian Sardina, and Hector Levesque, In Proceedings of the Ninth International Symposium on Logical Formalizations of Commonsense Reasoning (CS-2009), pages 135-140, Toronto, Canada, 2009.
[pdf | citeulike| slides | more]

Progressing basic action theories with non-local effect actions (short paper), Stavros Vassos, Sebastian Sardina, and Hector Levesque, In Proceedings of the 7th Panhellenic Logic Symposium (PLS-2009), Patras, Greece, 2009.
[pdf | citeulike| slides | more]

The Wumpus World in IndiGolog: A Preliminary Report, Sebastian Sardina and Stavros Vassos, In Proceedings of the Nonmonotonic Reasoning, Action and Change Workshop at IJCAI (NRAC-2005), pages 90-95, Edinburgh, Scotland, 2005.
[pdf | citeulike | slides | more]

Theses:

A Reasoning Module for Long-Lived Cognitive Agents, Stavros Vassos, Ph.D. Thesis, Department of Computer Science, University of Toronto, 2009.
[pdf | citeulike | more]

A Feasible Approach to Disjunctive Knowledge in Situation Calculus, Stavros Vassos, M.Sc. Thesis, Department of Computer Science, University of Toronto, 2005.
[pdf | citeulike | more]

Nonmonotonic Logical Approaches for the Frame Problem in Artificial Intelligence, Stavros Vassos, Diploma Thesis, Department of Electrical and Computer Engineering, National Technical University of Athens, 2001.
[pdf (in greek) | citeulike | more]

Articles in Magazines:

Manufacturing Automation Magazine, Toronto, Canada, 2007. Interviewed for the article: Giving robots the ability to think and reason in an industrial environment
[pdf | more].

Invited Talks:

Bell University Labs Workshop, Video Gaming at University of Toronto: Technical, Social and Legal Dimensions, Toronto, Canada, 2008. Title: Practical AI Modules for Non-Player-Characters in Video Games.
University of Toronto Interdisciplinary Symposium of the Mind(UTISM), Toronto, Canada, 2006. Panelist in a discussion with title: Embodiment, Embededness, and the Cognitive Gap.
6th Nonmonotonic Reasoning, Action and Change Workshop at IJCAI (NRAC), Edinburgh, Scotland, 2005. Panelist in a discussion with title: Challenges in Cognitive Robotics.