Journals

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "A Visual Programming System for Automated Problem Solving", Expert Systems With Applications, Elsevier, Vol. 37 (6), pp. 4611-4625, 2010.

Conferences

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "Semantic Awareness in Automated Web Service Composition through Planning", 6th Hellenic Conference on Artificial Intelligence (SETN 2010), Springer, LNCS Vol. 6040, Athens, Greece, May 2010.

Ourania Hatzi, George Meditskos, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "PORSCE II: Using Planning for Semantic Web Service Composition", 3rd International Competition on Knowledge Engineering for Planning and Scheduling 2009 (ICKEPS2009), in conjunction with the International Conference on Automated Planning and Scheduling (ICAPS-09), Roman Bartak, Simone Frattini, Lee McCluskey (Ed.), pp. 38-45, Thessaloniki, Greece, September 2009.

Ourania Hatzi, George Meditskos, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "Semantic Web Service Composition using Planning and Ontology Concept Relevance", The IEEE / WIC / ACM International Conference on Web Intelligence (WI'09), pp. 418-421, Milan, Italy, September 2009.

Ourania Hatzi, George Meditskos, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "A Synergy of Planning and Ontology Concept Ranking for Semantic Web Service Composition", 11th Ibero-American Conference on Artificial Intelligence (IBERAMIA 2008), H. Geffner et al. (Ed.), Springer-Verlag, LNAI 5290, pp. 42-51, Lisbon, Portugal, October 2008.

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "VLEPpO: A Visual Language for Problem Representation", In Proceedings of the 26th Workshop of the UK Planning and Scheduling Special Interest Group (PlanSIG 2007), Roman Bartak (Ed.), pp. 60 - 66, Prague, Czech Republic, December 2007.

Ourania Hatzi, Dimitris Vrakas, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "Visual Representation of Web Service Composition Problems through VLEPpO", International Workshop on Intelligent Web Based Tools (IWBT07), in conjunction with the 19th IEEE International conference on Tools with Artificial Intelligence (ICTAI07), Juan D. Velasquez (Ed.), pp. 42 - 49, Patras, Greece, October 2007.

Ourania Hatzi, Stephanos Thomas, Vassilis Dalakas, Mara Nikolaidou, Dimosthenis Anagnostopoulos, "An Integrated Environment for Traffic Flow Simulation Using Cellular Automata", European Simulation Multiconference 2007 (ESM 2007), Eurosis, Malta, October 2007.

Ourania Hatzi, Stephanos Thomas, Vassilis Dalakas, Mara Nikolaidou, Dimosthenis Anagnostopoulos, "A Cellular Automata Framework for Studying Expandable Traffic Flow Models", Summer Simulation Conference (SCSC-2007), San Diego, California, July 2007.

Ioannis Giannopoulos, Ourania Hatzi, Mara Nikolaidou, Dimosthenis Anagnostopoulos, "Realistic Virtual Environments Navigable over the WWW", Summer Simulation Conference (SCSC-2007), San Diego, California, July 2007.

Book Chapters

Dimitris Vrakas, Ourania Hatzi, Nick Bassiliades, Dimosthenis Anagnostopoulos, Ioannis Vlahavas, "A Visual Programming Tool for Designing Planning Problems for Semantic Web Service Composition", Visual Languages for Interactive Computing: Definitions and Formalizations, F. Ferri (Ed.), Idea Group Publishing, pp. 302 - 326, 2008.

Theses (only in Greek)

Web Service Composition through AI Planning (PhD Thesis)

Integrated Simulation Environment for the Study of Vehicle Traffic Flow in Urban Networks (MSc Thesis)

XML Data Representation and Recovery with the Object-oriented Programming Language of the CLIPS Rule Production System (Degree Thesis)

-- for more information or the implementation code feel free to contact me.