Journals:
D. K. Iakovidis, N. Pelekis, H. Karanikas, E. Kotsifakos, I. Kopanakis, and Y. Theodoridis. “A Pattern Similarity Scheme for Medical Image Retrieval”. IEEE Transactions on Information Technology in Biomedicine Journal, Volume 13, Issue 4, Pages: 442-450 , July 2009, ( Impact factor: 1 , 44 ) . 
C. Panagiotakis, K. Athanassopoulos and G. Tziritas, "The equipartition of curves", Computational Geometry, Vol. 42, No. 6-7, pp. 677-689, 2009
C. Panagiotakis, A. Doulamis and G. Tziritas, "Equivalent Key Frames Selection Based on Iso-Content Principles", IEEE Trans. on Circuits and Systems for Video Technology, Vol. 19, No. 3, pp. 447 - 451, 2009
N. Pelekis, D. K. Iakovidis, E. Kotsifakos, I. Kopanakis: “Fuzzy Clustering of Intuitionistic Fuzzy Data”, in the International Journal of Business Intelligence and Data Mining special issue on “KDD for Decision Making and Optimization”, Volume 3 , Issue 1, Pages 45-65, 2008.
G . Andrienko , N. Andrienko , I. Kopanakis , A. Ligtenberg : “ Visual Analytics Methods for Movement Data ”, book chapter 13 pages:375- 409 in “Mobility, Data Mining and Privacy - Geographic Knowledge Discovery”, F.Giannoni and D. Pedreschi (eds), Springer, ISBN 978-3-540-75176-2 (2008),
C. Panagiotakis, E. Kokinou, F. Vallianatos, "Automatic P Phase Picking Based on Local Maxima Distribution", IEEE Trans. on Geoscience and Remote Sensing, Vol. 46, No. 8, pp. 2280-2287, 2008
C. Panagiotakis and G. Tziritas, "Any dimension polygonal approximation based on equidistance principle", Pattern Recognition Letters, Vol. 28, No. 5, pp. 582-591, 2007
C. Panagiotakis and G. Tziritas, "Snake terrestrial locomotion synthesis in 3D virtual environments", Visual Computer, Vol. 22, No. 8, pp. 86-98, 2006
N. Pelekis, B. Theodoulidis, I. Kopanakis and Y. Theodoridis. "Fuzzy Miner: Extracting Fuzzy Rules from Numerical Patterns". International Journal of Data Warehousing & Mining, Volume 1 Issue 1, Pages: 57-81, Jan-March 2005 . Also appears as chapter 4.30 inData Warehousing and Mining: Concepts, Methodologies, Tools and Applications, J. Wang (ed), IGI Global, 2008. 
C. Panagiotakis and G. Tziritas, "A speech/music discriminator based on RMS and zero-crossings", IEEE Transactions on Multimedia, Vol. 7, No. 1, pp. 155-166, Feb. 2005
H. Karanikas, N. Pelekis, Theodoulidis B., I. Kopanakis "A Temporal Text Mining Approach in Competitive Intelligence" International Journal of Data Warehousing & Mining, June 2006, under review
N. Pelekis, B. Theodoulidis, I. Kopanakis and Y. Theodoridis, “Literature Review of Spatio-Temporal Database Models”, The Knowledge Engineering Review journal, Volume 19, Issue 3, Pages: 235-274, Jun 2005, ( Impact factor: 1,588) .
"I. Kopanakis, S. Karagiannis, N. Pelekis, H. Karanikas, "3D Class-Preserving Projection Technique for the representation of N-Dimensional Classified Data and Association Rules", Journal of Universal Computer Science, 2005 .
I. Kopanakis and B. Theodoulidis: "Visual Data Mining Modelling Techniques for The Visualization of Mining Outcomes", Journal of Visual Languages and Computing, Special Issue on Visual Data Mining, Volume 14, Issue 6, Pages: 543-589, 2003.
Conferences:
N. Pelekis, I. Kopanakis, E. Kotsifakos, E. Frentzos and Y. Theodoridis: “Clustering Trajectories of Moving Objects in an Uncertain World”, in the Proc. IEEE International Conference on Data Mining (ICDM09), Miami, FL, USA, 6-9 December 2009.
C. Panagiotakis, N. Pelekis, and I. Kopanakis: "Trajectory Voting and Classification based on Spatiotemporal Similarity in Moving Object Databases", in the Proc. The 8th International Symposium on Intelligent Data Analysis (IDA 2009) Lyon France, 31 August - 2 September 2009.
H. Karanikas, G. Koundourakis, I. Kopanakis and T. Mavroudakis: “A Temporal Text Mining Application in Competitive Intelligence”, in the Proc. “Data Mining and Knowledge Discovery” Stream in 23nd European Conference on Operational Research (EURO 2009), Bonn, Germany, July 5-8, 2009.
D.K. Iakovidis, N. Pelekis, E. Kotsifakos, I. Kopanakis: “Intuitionistic Fuzzy Clustering with Applications in Computer Vision” in Lecture Notes in Computer Science, Advanced Concepts for Intelligent Vision Systems, eds. J. Blanc-Talon, W. Philips, D. Popescu, (Berlin, Heidelberg: Springer), LNCS, 2008. (ISI impact factor 0.515) .
I. Kopanakis, “Visual Data Mining Techniques for Geo-Spatial Data”, 20th National Conference of the Greek Association of Operational Research, Anargireio & Korgialenio School, Spetses 19-20/6/2008 .
D. K. Iakovidis, N. Pelekis, E. Kotsifakos, I. Kopanakis, “Intuitionistic Fuzzy Clustering with Applications in Computer Vision”, Advanced Concepts for Intelligent Vision Systems (ACIVS 2008), Juan-les-Pins, France 20-24 October 2008
H. Karanikas, E. E. Kotsifakos, N. Pelekis, D. K. Iakovidis, I. Kopanakis, T. Mavroudakis, Y. Theodoridis, “Intelligent Search Assistant: The MetaOn Approach”, International Conference on Telecommunications and Multimedia (TEMU 08), 16-18 July 2008 Ierapetra, Crete, Greece .
N. Pelekis, D. K. Iakovidis, E. Kotsifakos, H. Karanikas, and I. Kopanakis: “Intuitionistic Fuzzy Clustering to Information Retrieval from Cultural Databases”, in the Proc. “Data Mining and Knowledge Discovery” Stream in 22nd European Conference on Operational Research (EURO XXII - 2007), Prague, Czech Republic, July 8-11, 2007 .
N. Pelekis, I. Kopanakis, G. Marketos, I. Ntoutsi, G. Andrienko, Y. Theodoridis: "Search in Trajectory Databases". in the Proc. IEEE Computer Society, 14th International Symposium on Temporal Representation and Reasoning (TIME 2007), Alicante, Spain, 28-30 June 2007 ,
N. Pelekis, I. Kopanakis, I. Ntoutsi, G. Marketos and Y. Theodoridis: "Mining Trajectory Databases via a Suite of Distance Operators", in the Proc. IEEE ICDE workshop on Spatio-Temporal Data Mining (STDM07), Istanbul, Turkey, 2007
D. Iakovidis, E. Kotsifakos, N. Pelekis, H. Karanikas, I. Kopanakis, and Y. Theodoridis: "Pattern-Based Retrieval of Cultural Heritage Images", in Proc. of the 11th Panhellenic Conference in Informatics (PCI'05), Rio, Greece, 2007 .
D. Iakovidis, N. Pelekis, H. Karanikas, E. Kotsifakos, I. Kopanakis, and Y. Theodoridis, "A Pattern Similarity Scheme for Medical Image Retrieval" in Proc. International Conference on Information Technology in Biomedicine (ITAB), Ioannina, Greece, 26-28 October 2006
H. Karanikas, N. Pelekis, D. Iakovidis, I. Kopanakis, T. Mavroudakis and Y. Theodoridis. "MetaOn - Ontology Driven Metadata Construction and Management for Intelligent Search in Text and Image Collections", In the Proceedings of the International DEXA Workshop on Flexible Database and Information System Technology (FlexDBIST-06), IEEE CSP, Crakow, Poland, September, 2006
H. Karanikas et al. "Multimedia Annotation System for Intelligent Search", In the Proceedings of the International Conference on Telecommunications & Multimedia (TEMU’06), Heraklion-Crete, Greece, July 2006 .
I. Kopanakis, N. Pelekis, H. Karanikas and T. Mavroudakis: "Visual Techniques for the Interpretation of Data Mining Outcomes", 10th Panhellenic conf. on Informatics (PCI'2005) LNCS Proc., Volos, Greece, November 11-13, 2005 .
Kopanakis, S. Karagiannis, N. Pelekis and H. Karanikas: "Bar Chart Form Visual Data Mining model for the representation of Association Rules", Proc. of Annual Conf. on Telecommunications & Multimedia (TEMU'05) Heraklion - Crete, Greece, June 2005
N. Pelekis, B. Theodoulidis and I. Kopanakis, “Fuzzy Miner: A Fuzzy System for Solving Pattern Classification Problems”, Proc. 1st Int’l EDBT Workshop on Pattern Representation and Management ( PaRMa'04) Heraklion - Crete, Greece, March 2004.
H. Karanikas, N. Pelekis, I. Kopanakis and T. Mavroudakis: "Discovering Market Trends via Text Mining", Proc. Conf. on New Technologies and Marketing (NTM’05) Ierapetra – Crete, Greece, May 2005
I. Kopanakis and B. Theodoulidis: “Visual Data Mining and Modelling Techniques”, ACM SIGKDD Int. Conf. on Knowledge Discovery & Data Mining (KDD 2001), Proc. Workshop on Visual Data Mining, San Francisco, USA, 2001, Pages: 114-128.