Publications (in alphabetic order)

2009

A. Deligiannakis, Y. Kotidis, V. Vassalos, V. Stoumpos, A. Delis, "Another Outlier Bites the Dust: Computing Meaningful Aggregates in Sensor Networks", accepted for publication in Proceedings of the 25nd International Conference on Data Engineering (ICDE'09), Shanghai, China, March 2009 (long paper)

Alfonso Gerevini, Adele Howe, Amedeo Cesta and Ioannis Refanidis (eds). Proceedings of the 19th International Conference on Automated Planning and Scheduling. AAAI Press.

Anastasios Alexiadis and Ioannis Refanidis. Defining a Task’s Temporal Domain for Intelligent Calendar Applications. 5th IFIP Conference on Artificial Intelligence Applications & Innovations (AIAI 2009), Thessaloniki, Greece. Springer.

Andreas Kind, Marc Stoecklin, Xenofontas Dimitropoulos. "Histogram-based Traffic Anomaly Detection", IEEE Transactions in Network and Service Management, 2009 .

Anna Mavroudi, Papadakis Spyros, Thanasis Hadzilacos, "LAMS Sequence Metadata Application Profile", European LAMS and Learning Design Conference", Milton Keynes, UK, July 2009

Bogdan Cautis , Alin Deutsch , Nicola Onose , Vasilis Vassalos,"Efficient Rewriting of XPath Queries Using Query Set Specifications", Proceedings of International Conference on Very Large Databases (VLDB) , 2009

D. Barbosa, P. Bohannon, J. Freire, C-C. Kanne, I. Manolescu, V. Vassalos, M. Yoshikawa, "XML storage", Encyclopedia of Database Systems, Springer Publishing, 2009 (in print).

D. Kalles and A. Papagelis. “Lossless Fitness Inheritance in Genetic Algorithms for Decision Trees”, (to appear in) Soft Computing, 2009.

D. Vassilakis, V. Vassalos, "An analysis of peer-to-peer networks with altruistic peers," Peer-to-Peer Networking and Applications (Springer), Volume 2, issue 2, June 2009.

Daniela Brauckhoff, Arno Wagner, Xenofontas Dimitropoulos, and Kave Salamatian. "Anomaly Extraction in Backbone Networks using Association Rules", ACM SIGCOMM Internet Measurement Conference (IMC), Nov. 2009.

Dieter Pfoser, Alexandros Efentakis, Thanasis Hadzilacos, Sophia Karagiorgou, Giorgos Vasiliou. Providing Universal Access to History Textbooks – A Modified GIS Case. In Proc. 9th International Symposium on Web & Wireless Geographical Information Systems. To appear. 2009

Dimitris Sklavakis and Ioannis Refanidis. The MATHESIS Ontology: Reusable Authoring Knowledge for Reusable Intelligent Tutors. 7th International Workshop on Ontologies and Semantic Web for E-Learning, in conjunction with AIED2009. Brighton, UK, July 2009.

Dimitris Sklavakis and Ioannis Refanidis. The MATHESIS Algebra Tutor: Web-based Expert Tutoring via Deep Model Tracing. Interactive Event at the 14th International Conference on Artificial Intelligence in Education, Brighton, 2009.

Eleni Dagkli and Ioannis Refanidis. MIXPLAN: A CLP-based Mixed-initiative Planning System for Temporal Domains. 4th Balkan Conference on Informatics (BCI09), Thessaloniki, Greece, 2009. IEEE Computer Society.

George Markou and Ioannis Refanidis. MSRS: Critique on its usability via a path planning algorithm implementation. 5th IFIP Conference on Artificial Intelligence Applications & Innovations (AIAI 2009), Thessaloniki, Greece. Springer.

Goulianos, A.A., Brown, T.W.C., Evans, B., Stavrou, S., " Wideband power modeling and time dispersion analysis for UWB indoor off-body communications ", IEEE transactions on Antennas and Propagation Volume 57,  Issue 7,  July 2009, Page(s): 2162 - 2171

Goulianos, A.A., Brown, T.W.C,  Stavrou, S., “Power delay profile modeling of the UWB off-body propagation channel”, accepted for publication, IET Microwaves, Antennas & Propagation

H. Georgiadis, M. Charalambides, V.Vassalos, "Cost Based plan selection for XPath", Proceedings of 38th SIGMOD Conference, Providence, RI, USA, June 2009.

I. Manolescu, I. Papakonstantinou, V. Vassalos, "XML tuple algebra", Encyclopedia of Database Systems, Springer Publishing, 2009 (in print).

Ioannis Refanidis and Ilias Sakellariou. A Systematic and Complete Algorithm to Compute Higher Order Exclusion Relations. In Proceeding of the ICAPS-2009 Workshop on Constraint Satisfaction Techniques for Planning and Scheduling Problems (COPLAS'2009), Thessaloniki, Greece, 2009, pp. 33-42.

Ioannis Refanidis and Neil-Yorke Smith. On Scheduling Events and Tasks by an Intelligent Calendar Assistant. In Proceeding of the ICAPS-2009 Workshop on Constraint Satisfaction Techniques for Planning and Scheduling Problems (COPLAS'2009), Thessaloniki, Greece, 2009, pp. 43-52 .

Ioannis Refanidis and Neil Yorke-Smith. Scheduling Events and Tasks by an Intelligent Calendar Assistant. SRI International technical report, 2009.

M. Bornea, V. Vassalos, Y. Kotidis, A. Deligiannakis, "Double Index Nested-loop Reactive Join for Result Rate Optimization", accepted for publication in Proceedings of the 25nd International Conference on Data Engineering (ICDE'09), Shanghai, China, March 2009 (long paper).

Makaratat, K., Brown, T.W.C., Stavrou, S., and Evans, B.: “Classification of UWB multipath clusters and its distortion effects on positioning error”, European Conference on Antennas and Propagation, EuCAP 2009, Berlin, Germany, March 2009, Page(s): 191-195

Makaratat, K., Brown, T.W.C., Stavrou, S., and Evans, B.: “Complex Correlation on Linear Array AOA Estimation Measurement,” accepted for publication, IET Microwaves, Antennas and Propagation. 

P. Raptis, V. Vitsas, P. Chatzimisios and K. Paparrizos , "Voice and Data Traffic Analysis in IEEE 802.11 DCF Infrastructure WLANs", Second International Conference on Advances in Mesh Networks, MESH 2009, pp. 37
- 42, 18-23 June 2009.

P. Rapris, V. Vitsas, and K. Paparrizos, “Packet Delay Metrics for IEEE 802.11 Distributed Coordination Function“ , accepted for publication in ACM/Springer Mobile Networks and Applications ( /MONET /), special issue on "Recent Advances in IEEE 802.11 WLANs: Protocols, Solutions and Future Directions".

S. Harhalakis, N. Samaras and V. Vitsas, “ Exploiting the Congestion Control Behaviour of the Transmission Control Protocol ”, accepted for publication at 4th Balkan Conference in Informatics, Thessaloniki, GREECE, September 17-19, 2009.

Th. Hadzilacos, D. Kalles, D. Karaiskakis and Μ. Pouliopoulou. ”Using Graphs in Developing Educational Material”, (to appear in) Web-Based Learning Solutions for Communities of Practice: Developing Virtual Environments for Social and Pedagogical Advancement, N. Karakapilidis (ed), IGI Global, 2009.

Th. Hadzilacos, D. Kalles, D. Koumanakos and V. Mitsionis. “A Prototype for Educational Planning Using Course Constraints to Simulate Student Populations”, International Journal on Artificial Intelligence Tools, Vol. 18, No. 4, pp. 621 – 630,2009.

V. Vassalos, "Answering queries using views", Encyclopedia of Database Systems, Springer Publishing, 2009 (in print).

Xenofontas Dimitropoulos, Dmitri Krioukov, Amin Vahdat, George Riley . "Graph Annotations in Modeling Complex Network Topologies ", ACM Transactions on Modeling and Computer Simulation (TOMACS), vol. 19, no. 4, Sep. 2009

Xenofontas Dimitropoulos, Paul Hurley, Andreas Kind, and Marc Stoecklin. "On the 95-percentile billing method", Springer Passive and Active Measurement Conference (PAM), Apr. 2009.

2008

D. Kalles. Students working for students on programming courses, Computers and Education, Vol. 50, Iss. 1, pp. 91 - 97, 2008.

D. Kalles and P. Kanellopoulos. A Minimax Tutor for Learning to Play a Board Game, Workshop on Artificial Intelligence in Games, a workshop of the 18th European Conference on Artificial Intelligence, pp. 10-14, Patras, Greece, July 2008.

D. Kalles, C. Pierrakeas and M. Xenos. Intelligently Raising Academic Performance Alerts, 1st International Workshop on Combinations of Intelligent Methods and Applications, a workshop of the 18th European Conference on Artificial Intelligence, pp. 37-42, Patras, Greece, July 2008.

D. Kalles, A.C. Kaporis and P.G. Spirakis. Myopic distributed protocols for singleton and independent-resource congestion games, 7th International Workshop on Experimental Algorithms, Provincetown, MA, May-June 2008.

D. Karaiskakis, D. Kalles, and Th. Hadzilacos. Profiling Group Activity of Online Academic Workspaces: the Hellenic Open University case study, (accepted for publication in) International Journal of Web-based Learning and Teaching Technology, 2008.

A. Xeros, M. Andreou, A. Pitsillides and M. Lestas: Information Propagation Probability in VANETS,  in Proc., of  the 3rd Vehicle to Vehicle Communication workshop, V2Vcom 2007.

2007

D.S. Amanatiadis, V. Vitsas, A. Manitsaris, I. Mavridis, P. Chatzimisios and A.C. Boucouvalas, Calculating voice capacity of IEEE 802.11b WLANs, Mediterranean Journal of Computers and Networks, vol. 3, no.4, pp. 132-141, Oct. 2007.

C. Christophi, D. Zeinalipour-Yazti, M. D. Dikaiakos, G. Paliouras, "Automatically annotating the ODP Web taxonomy." by Web Search and Mining Track of the 11th Panhellenic Conference on Informatics (PCI'07), Patras, Greece, 18-20 May 2007, Springer Press 

P. Chatzimisios, V. Vitsas, A. C. Boucouvalas and M. Tsoulfa, Achieving performance enhancement in IEEE 802.11 WLANs by using the DIDD backoff mechanism, International Journal of Communication Systems, vol. 20, no. 1, pp. 23-41, Jan 2007

H. Gjermundrod, M. Papa, D. Zeinalipour-Yazti, M.D. Dikaiakos, G. Panayi, T. Kyprianou, "Intensive Care Window: A multi-modal monitoring tool for Intensive Care Research and Practice" by 20th IEEE International Symposium on Computer-Based Medical Systems (CBMS'07), June 20-22, Maribor, Slovenia, 2007

H. Gjermundrod, M. D. Dikaiakos, D. Zeinalipour-Yazti, G. Panayi, Th. Kyprianou. "ICGrid: Enabling Intensive Care Medical Research on the EGEE Grid." by 5th HealthGrid Conference (HealthGrid'07), Geneve, Switzerland, 24-27 April,  2007.

T. Hadzilacos, D. Kalles, D. Karaiskakis, M. Pouliopoulou, Using Graphs in Developing Educational Material  Proceedings of the 2nd International Workshop on Building Technology Enhanced Learning Solutions for Communities of Practice, TEL-CoPs'07, Sissi, Lassithi - Crete Greece, 18 September, 2007, http://ceur-ws.org ISSN 1613-0073 Vol-308

T. Hadzilacos, D. Kalles and M. Pouliopoulou. On the Software and Knowledge Engineering Aspects of the Educational Process, International Journal of Software Engineering & Knowledge Engineering, Vol. 17, No. 5, pp. 643 - 662, 2007.

T. Hadzilacos, D. Kalles, D. Karaiskakis and M. Pouliopoulou. Using Graphs in Developing Educational Material, Workshop on Technology Enhanced Learning – Communities of Practice, Chania, Greece, September 2007.

T. Hatzilacos. N. Sifakis, D. Eggarxou, M. Foutana, S. Ronioti, Τηλε-εκπαίδευση που χρειάζεται: Αγγλικά σε απομακρυσμένα ολιγοθέσια δημοτικά 4ο Συνέδριο για τις Τεχνολογίες της Πληροφορίας και της Επικοινωνίας στην Εκπαίδευση, Μάης 2007, Σύρος

D. Kalles and A. Papagelis. Programming Drills with a Decision Trees Workbench, Adapting Information and Communication Technologies for Effective Education, L. Tomei (ed), Idea, pp. 108-120, 2007.

D. Kalles. Measuring Expert Impact on Learning how to Play a Board Game, 4th IFIP Conference on Artificial Intelligence Applications and Innovations, Athens, Greece, September 2007.

M. Kordaki, S. Papadakis,  and T. Hadzilacos (2007). Providing tools for the development of cognitive skills in the context of Learning Design-based e-learning environments. In … (Eds),  Proceedings of World Conference on E-Learning in Corporate, Government, Healthcare & Higher Education (E-Learn 2007), October, 15-19, Quebec Canada, USA, pp.. Chesapeake, VA: AACE (acceptance rate 25-39%)

D. Pfoser, T. Hadzilacos, N. Faradouris, K. Kyrimis, Spatial Data Management Aspects in Archaeological Excavation Documentation 10th AGILE Internat’l Conf on Geographic Information Science, May 2007 Aalborg, Denmark (selected for the Best Award Paper – Plenary Session)

P. Rapris, V. Vitsas, P. Chatzimisios and K. Paparrizos, Delay jitter analysis of 802.11 DCF, IEE Electronics Letters, vol. 43, no 25, pp. 1472-1474, 6th Dec. 2007.

P. Raptis, V. Vitsas, A. Banchs and K. Paparrizos, Delay Distribution Analysis of IEEE 802.11 with Variable Packet Length, in Proc. of the 65th IEEE Vehicular Technology Conference 2007 (VTC2007-Spring), pp. 830-834, 22-25 April 2007, Dublin, Ireland.

I. Refanidis. Managing Personal Tasks with Time Constraints and Preferences. 17th International Conference on Automated Planning and Scheduling Systems (ICAPS-07), Providence, Rhode Island, US, September 2007. AAAI Press.

I. Refanidis and A. Alexiadis. SelfPlanner: A Intelligent Web-based Calendar Application. To be demonstrated at the demo session of the 17th International Conference on Automated Planning and Scheduling Systems (ICAPS-07), Providence, Rhode Island, US, September 2007.

D. Sklavakis and I. Refanidis. An Individualized Web-based Algebra Tutor Based on Dynamic Deep Model Tracing. 5th Hellenic Conference on Artificial Intelligence, Syros, Greece, 2008

A. Stefani, D. Kalles and M. Xenos. «Evaluating E-commerce sites with AI tools: a modelling approach», Πανελλήνιο Συνέδριο Πληροφορικής, 2007.

D. Zeinalipour-Yazti, V. Kalogeraki, D. Gunopulos "pFusion: An Architecture for Internet-Scale Content-Based Search and Retrieval", IEEE Transactions on Parallel and Distributed Systems (TPDS), IEEE Press, vol. 18, no. 6, pp. 804-817, June 2007.

D. Zeinalipour-Yazti, P. Andreou, P. Chrysanthis and G. Samaras ``SenseSwarm: A Perimeter-based Data Acquisition Framework for Mobile Sensor Networks'' 4th Intl. Workshop on Data Management for Sensor Networks DMSN'07(with VLDB'07), Sep. 24th, 2007, Vienna, Austria, July 2007.

D. Zeinalipour-Yazti, K. Neocleous, C. Georgiou, M. Dikaiakos, FailRank: Towards a Unified Grid Failure Monitoring and Ranking System CoreGRID Workshop on Grid Programming Models and P2P Systems Architecture (Coregrid 2007 Workshop) Heraklion, Crete, Greece, June 12-13, 2007.

D. Zeinalipour-Yazti, P. Andreou, P. Chrysanthis, G. Samaras and A. Pitsillides, The MicroPulse Framework for Adaptive Waking Windows in Sensor Networks IEEE International Workshop on Data Intensive Sensor Networks 2007 (IEEE DISN'07) (with MDM'07), Mannheim, Germany, May 11, 2007.

D. Zeinalipour-Yazti, P. Andreou, P. Chrysanthis and G. Samaras ``MINT Views: Materialized In-Network Top-k Views in Sensor Networks'' The IEEE 8th International Conference on Mobile Data Management (MDM'07), Mannheim, Germany, May 7 - 11, 2007.

D. Zeinalipour-Yazti, P. Andreou, P. Chrysanthis and G. Samaras ``MINT Views: Materialized In-Network Top-k Views in Sensor Networks'', The 6th Hellenic Data Management Symposium} (HDMS 2007), Athens, Greece, 5-6 July, 2007.

D. Zeinalipour-Yazti, S. Lin, D. Gunopulos, ``Distributed Spatio-Temporal Similarity Search'', The 6th Hellenic Data Management Symposium} (HDMS 2007), Athens, Greece, 5-6 July, 2007.