**DISSERTATIONS**

[D.1] **Y. S. Boutalis**, ” Fast Space Recursive Techniques with applications in Digital Image Processing», PhD Dissertation, Computer Science Division, Department of El. Eng., NTUA, Athens, December 1988.

[D.2] **Y. S. Boutalis**, “Parallel Processing of 2-D digital signals based on the state – space model”, Diploma Thesis, Department of El. Eng., Polytechnic school of Xanthi, Thrace, Greek, November 1983.

**JOURNALS**

[J.1] **Υ. Boutalis**, S. Kollias and G. Carayannis, “Α Fast Multichannel Approach to Adaptive Image Estimation”, ΙΕΕΕ Trans. on ASSP, νοl. 37, no. 7, pp. 1090-1098, July 1989.

[J.2] **Υ. Boutalis**, S. Kollias and G. Carayannis, “Α Fast Adaptive Approach to the Restoration of Images Degraded by Noise”, Signal Processing, pp 151 -162, February 1990.

[J.3] L. Sukissian, S. Kollias and **Y. Boutalis**, “Adaptive Classification of Textured Images Using Linear Prediction and Neural Networks”, Signal Processing, pp 209 – 232, vol. 36, 1994.

[J.4] M. A. Kattis, E. Providas, **Y. Boutalis** and A. Kalamkarov, “Antiplane deformation of a partially bonded elliptical inclusion”, Theoretical and Applied fracture mechanics, pp. 43 –51, vol 27, 1997.

[J.5] I. Kokolakis, S. Koukopolos, I. Andreadis and **Y. Boutalis**, “Cellular Automata based Noise Generator”, The Journal of the Franklin Institute, vol. 336, No. 5, pp. 799-808, 1999.

[J.6] **Y. Boutalis**, C. Papaodyseus and E. Koukoutsis, “A New Multichannel Recursive Least Squares Algorithm for Very Robust and Efficient Adaptive Filtering”, Journal of Algorithms, vol.37, pp. 283- 308, 2000.

[J.7] **Y. Boutalis**, I. Andreadis and G. Tambakis, ” A Fast fuzzy K-nearest neighbour algorithm for pattern classification “, Intelligent Data analysis, vol. 4, Numbers 3,4, pp.275-288, 2000.

[J.8] **Y. Boutalis**, D. Karras and B. Mertzios, ‘Regularized Supervised and Unsupervised Neural Network Models for Function Approximation in Intelligent Robot Dynamic Control”, Buletin of University of Petrol & Gas University of Ploiest – Romania, pp. 99-104, vol. LII, May 2000.

[J.9] **Y. Boutalis**, K. Tsirikolias, B. Mertzios and I. Andreadis, “Implementation of Morphological Filters using Coordinate Logic Operations”, Pattern Recognition, vol. 35, pp. 187-198, Jan. 2002.

[J.10] **Y. S. Boutalis** and O. I. Kosmidou, “Using Neural Network Observers for Bioprocess Control”, Control Engineering and Applied Informatics, CEAI vol. 3, Number 1, pp. 51-58, April 2001.

[J.11] I. Andreadis, C. Fyrinides, A. Gasteratos and **Y. Boutalis**, “Decomposition of Grey-Scale Morphological Structuring Elements in Hardware”, Image Processing & Communications, vol. 8, Number 2, pp. 13-22, 2002.

[J.12] **Y. S. Boutalis** and O. I. Kosmidou, “A Feedback Linearization Technique by Using Neural Networks: Application to Bioprocess Control” Journal of Computational Methods in Sciences and Engineering, vol. 6, pp. 269–282, 2006.

[J.13] **Y. S. Boutalis**, “Neural Network Approaches for Feedback Linearization”, Control Engineering and Applied Informatics, volume 6, no.1, pp. 15-26, 2004.

[J.14] G. Papakostas, D. Karras, B. Mertzios and **Y. Boutalis**, “An Efficient Feature Extraction Methodology for Computer Vision Applications using Wavelet Compressed Zernike Moments”, IGGST International Journal on Graphics, Vision and Image Processing, Special Issue: Wavelets and Their Applications, Vol. SI1, pp. 5-15, 2005.

[J.15] O. Kosmidou and **Y. S. Boutalis**, “A Linear Matrix Inequality Approach for Guaranteed Cost Control of Systems with State and Input Delays”, IEEE Transactions on Systems, Man and Cybernetics Part A, vol. 36, no. 5, pp. 936-942, 2006.

[J.16] O. Kosmidou and **Y. S. Boutalis**, “On the Ricati equations arising in robust control approaches”, Applied Numerical Analysis & Computational Mathematics, Wiley, vol.2, no.1, pp. 69-99, 2005.

[J.17] T. L. Kottas, **Y. S. Boutalis**, and A. D. Karlis, “A New Maximum Power Point Tracker for PV Arrays Using Fuzzy Controller in Close Cooperation with Fuzzy Cognitive Networks”, IEEE Transactions on Energy Conversion, vol. 21, no. 3, pp. 793-903, September 2006.

[J.18] G. A. Papakostas, **Y. S. Boutalis**, C. N. Papaodysseus and D. K. Fragoulis, “Numerical error analysis in Zernike moments computation”, Image and Vision Computing (Elsevier), vol 24, pp. 960-969, 2006.

[J.19] T. L. Kottas, **Y. S. Boutalis** and M. A. Christodoulou, “Fuzzy Cognitive Networks: A general framework”, Intelligent Decision Technologies, vol. 1, pp. 183–196, 2007.

[J.20] A. D. Karlis, T. L. Kottas and **Y. S. Boutalis**, “A novel maximum power point tracking method for PV systems using Fuzzy Cognitive Networks (FCN)”, Electric Power Systems Research, vol. 77, pp. 315- 327, 2007.

[J.21] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “A New Class of Zernike Moments for Computer Vision Applications”, Information Sciences, vol. 177, no.13, pp. 2802-2819, 2007.

[J.22] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Fast Numerically Stable Computation of Orthogonal Fourier-Mellin Moments”, IET Computer Vision, vol.1, no. 1, pp. 11-16, 2007.

[J.23] G. A. Papakostas, **Y. S. Boutalis**, S. Samartzidis, D. A. Karras and B. G. Mertzios, “Two-Stage Hybrid Tuning Algorithm for Training Neural Networks in Image Vision Applications”, International Journal of Signal and Imaging Systems Engineering, vol. 1, no. 1, pp. 58-67, 2008.

[J.24] G. A. Papakostas, **Y. S. Boutalis**, C.N. Papaodysseus and D.K. Fragoulis, “Numerical Stability of Fast Computation Algorithms of Zernike Moments”, Applied Mathematics and Computation, vol. 195, no. 1, pp. 326-345, 2008.

[J.25] G. A. Papakostas, **Y. S. Boutalis**, D. E. Koulouriotis and B. G. Mertzios, “Fuzzy Cognitive Maps for Pattern Recognition Applications”, International Journal of Pattern Recognition and Artificial Intelligence, vol. 22, no. 8, pp. 1461–1486, 2008.

[J.26] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Pattern Classification by Using Improved Wavelet Compressed Zernike Moments”, Applied Mathematics and Computation, vol. 212, pp. 162-176, 2009.

[J.27] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Modified Factorial Free Direct Methods for Zernike and Pseudo-Zernike Moments Computation”, IEEE Trans. on Instrumentation and Measurement (Special Issue of IST’06), vol. 58, no. 7, pp. 2121-2131, 2009.

[J.28] S. A. Chatzichristofis, K. Zagoris, **Y. S. Boutalis** and N. Papamarkos, “Accurate Image Retrieval Based on Compact Composite Descriptors and Relevance Feedback Information”, International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI), vol. 24, no. 2, pp. 207-244, 2010.

[J.29] **Y. Boutalis**, T. Kottas and M. Christodoulou, “Adaptive Estimation of Fuzzy Cognitive Maps with proven Stability and Parameter Convergence”, IEEE Transactions on Fuzzy Systems, vol. 17, no. 4, pp. 874 – 889, Aug. 2009.

[J.30] **Y. Boutalis**, D. Theodoridis and M. Christodoulou, “A new Neuro FDS definition for indirect adaptive control of unknown nonlinear systems using a method of parameter hopping”, IEEE Transactions on Neural Networks, 20(4):609–625, 2009.

[J.31] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Direct Adaptive Control of Unknown Nonlinear Systems Using a New Neuro-Fuzzy Method Together with a Novel Approach of Parameter Hopping”, Kybernetica, 45(3):349–386, 2009.

[J.32] S. A. Chatzichristofis and **Y. S. Boutalis**, “Content Based Radiology Image Retrieval Using a Fuzzy Rule Based Scalable Composite Descriptor”, Multimedia Tools and Applications, Special Issue on Data Semantics for Multimedia Systems, vol. 46, no. 2, pp 493-519, 2010.

[J.33] I. M. Spiliotis and **Y. S. Boutalis**, “Parameterized real-time moment computation on gray images using block techniques”, Journal of Real-Time Image Processing, Springer, Published on-line, 2009, DOI: 10.1007/s11554-009-0142-0.

[J.34] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Efficient Computation of Zernike and Pseudo-Zernike Moments for Pattern Classification Applications”, Pattern Recognition and Image Analysis, vol. 20, no. 1, pp. 56-64, 2010.

[J.35] **Y. S. Boutalis**, “A new method for constructing kernel vectors in morphological associative memories of binary patterns”, Computer Science and Information Systems – ComSIS, vol. 08, no. 1, pp. 141-166, 2011. (DOI:10.2298/CSIS091114026B).

[J.36] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Indirect adaptive control of unknown multi variable nonlinear systems with parametric and dynamic uncertainties using a new neuro-fuzzy system description”, International Journal of Neural Systems (IJNS), Vol. 20, no. 2, pp. 129-148, 2010. (DOI: 10.1142/S0129065710002310).

[J.37] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “A New Direct Adaptive Regulator with Robustness Analysis of Systems in Burnkovsky Form”, International Journal of Neural Systems (IJNS), Vol. 20, no. 4, pp. 319-339, 2010. (DOI: 10.1142/S0129065710002449) (IF: 2.99)

[J.38] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Direct Adaptive Regulation of Unknown Nonlinear Systems with Analysis of the Model Order Problem”, Journal of Zhejiang University-SCIENCE C (Computers & Electronics), Springer, Vol. 12, no. 1, pp. 1-16, 2011. (doi:10.1631/jzus.C1000224)

[J.39] S. Chatzichristofis, D. Mitzias, G. Sirakoulis and **Y. S. Boutalis**, “A Novel Cellular Automata Based Technique for Visual Multimedia Content Encryption”, Optics Communications (Elsevier), vol. 283, no. 21, pp. 4250-4260, 2010.

[J.40] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Robustifying Analysis of the Direct Adaptive Control of Unknown Multivariable Nonlinear Systems Based on a New Neuro-Fuzzy Method”, Journal of Artificial Intelligence and Soft Computing, vol. 1, no. 1, pp. 59-79, 2011.

[J.41] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “A new adaptive neuro-fuzzy controller for trajectory tracking of robot manipulators”, International Journal of Robotics and Automation, vol. 26, no. 1, pp. 64-75, 2011.

[J.42] S. Chatzichristofis, A. Arampatzis and **Y. Boutalis**, “Investigating the Behavior of Compact Composite Descriptors in Early Fusion, Late Fusion, and Distributed Image Retrieval”, Radioengineering, vol. 19, no. 4, pp. 725-733, 2010.

[J.43] H.E. Psillakis, M.A. Christodoulou, T. Giotis and **Y. Boutalis**, “An observer approach for deterministic learning using patchy neural networks with applications to fuzzy cognitive networks”, Int. J. Artif. Life Research, vol.2, no. 1, pp 1-16, 2011.

[J.44] S. Chatzichristofis, A. Arampatzis and **Y. Boutalis**, “Fast Retrieval from Image Databases via Binary Haar Wavelet Transform on the Color and Edge Directivity Descriptor”, International Journal On Advances in Networks and Services, vol. 4, n0. 1&2, pp. 223-231, 2011.

[J.45] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Dynamical Recurrent Neuro-Fuzzy Identification Schemes Employing Switching Parameter Hopping”, International Journal of Neural Systems, vol. 22, no. 2, pages 16, 2012, DOI: 10.1142/S0129065712500049.

[J.46] N. Sofianos and **Y. Boutalis**, “Stable Indirect Adaptive Switching Control for Fuzzy Dynamical Systems Based on T-S Multiple Models”, International Journal of Systems Science, pages 20, 2012, http://dx.doi.org/10.1080/00207721.2012.659697.

[J.47] S. Α. Chatzichristofis, C. Iakovidou, **Y. S. Boutalis** and Elli Angelopoulou, “Mean Normalized Retrieval Order (MNRO). A New Content-Based Image Retrieval Performance Measure”, Multimedia Tools and Applications, Springer, in print, pages 32, published on line, 2012. (DOI 10.1007/s11042-012-1192-z).

[J.48] D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Direct Adaptive Neuro-Fuzzy Trajectory Tracking of Uncertain Nonlinear Systems, International Journal of Adaptive Control and Signal Processing, Special Issue: New Results on Neuro-fuzzy Adaptive Control Systems, vol 26, No. 7, pp. 660-688, July 2012, DOI: 10.1002/acs.2302.

[J.49] K. Schmidt and **Y. Boutalis**, “Fuzzy Discrete Event Systems for Multi-objective Control: Framework and Application to Mobile Robot Navigation”, IEEE Trans. on Fuzzy Systems, vol. 20, no. 5, pp. 910-922, October 2012, DOI 10.1109/TFUZZ.2012.2189219.

[J.50] T. Kottas, **Y. Boutalis**, M. Christodoulou, “Bi-linear Adaptive Estimation of Fuzzy Cognitive Networks”, Applied Soft Computing (Elsevier), accepted 2012.

[J.51] G. Tsengenes, **Y. Boutalis** and G. Adamidis, “A Novel Fuzzy PR Current Controller for Shunt Active Power Filter Applications”, International Review on Modelling and Simulations (IREMOS), vol. 5, no. 1, pp. 362-373, 2012

[J.52]** **S. chatzichristofis, C. Iakovidou, Y. **Boutalis** and O. Marques, “Co.Vi.Wo.: Color Visual Words Based on Non-Predefined Size Codebooks “, IEEE Trans on Cybernetics, vol. 43, no. 1, pp. 192-205, 2013. doi: 10.1109/TSMCB.2012.2203300.

[J.53]** **Y. **Boutalis**, M. Christodoulou and D. Theodoridis, “Indirect Adaptive Control of Nonlinear Systems based on Bilinear Neurofuzzy Approximation”, International Journal of Neural Systems (SCI-**IF 4.284**), vol. 23, no. 5, pages 17, Oct. 2013. DOI:10.1142/S0129065713500226.

[J.54] ** **N. Sofianos and Y. **Boutalis**, “Multiple Models Fuzzy Control: A Redistributed Fixed Models Based Approach”, Intelligent automation & Soft Computing, Special Issue on Advances in Intelligent Control: Theory and Applications, Taylor & Francis and Autosoft Journal,vol. 20, no. 2, pp. 229-243, 2014.

[J.55]** **S. Chatzichristofis, L. Bampis, O. Marges, M. Lux and Y. **Boutalis**, “Image Encryption using the Recursive Attributes of the Exclusive-OR Filter”, Journal of Cellular Automata, vol. 9, no. 2-3, pp. 125-137, 2014 (Invited Contribution).

[J.56]** **L. Bampis, C. Iakovidou, S. A. Chatzichristofis, Y. **Boutalis** and A. Amanatiadis, “Real-Time Indexing for Large Image Databases: Color and Edge Directivity Descriptor on GPU”, The Journal of Supercomputing, Springer, vo. 71, no. 3, pp. 909-937, 2015.

[J.57] C. Iakovidou, N. Anagnostopoulos, A. Amanatiadis, M.Lux, Y. **Boutalis** and S. A. Chatzichristofis, “Localizing Global Descriptors for Content Based Image Retrieval”, EURASIP Journal on Advances in Signal Processing, (Springer), vol 80, 2015. doi:10.1186/s13634-015-0262-6.

[J.58] N. Sofianos and Y. **Boutalis**, “Robust Adaptive Multiple Models Based Fuzzy Control of Nonlinear Systems”, Neurocomputing (Elsecier),In Press, 2015. doi:10.1016/j.neucom.2015.09.047

[J.59] D. Stimoniaris, T. Kottas, D. Tsiamitros, Y. **Boutalis** and E. Dialynas, “A new operation scheme of a Small Grid using Fuzzy Cognitive Networks”, IEEE Transactions on Smart Grids, (Under Review), 2015.

**CONFERENCES**

[C.1] **Υ. Boutalis**, S. Kollias and G. Carayannis, “Α Fast Multichannel Approach to Adaptive Estimation and Filtering of two-Dimensional Images”, Proceedings of ICASSP’ 87, pp. 1981-1984.

[C.2] S. Kollias, **Υ. Boutalis** and G. Carayannis, “Α Fast Adaptive Algorithm for Image Restoration”, Proceedings of Int. Conf. on DSP, FIorence, Italy, pp. 466-470, September 1987.

[C.3] **Y. Boutalis**, S. Kollias, G. Carayannis and L. Sukissian, “Α Fast Technigue for Automatic Segmentation and Classification of Textured Images”, Proceedings of ICASSP’88, pp. 1132- 1135, April 1988.

[C.4] S. Kollias, **Υ. Boutalis** and G. Carayannis, “Fast Adaptive Identification and Restoration of Images Degraded by Blur and Noise”, Proceedings of IEEE ISCAS’ 88, Helsinki, Finland, June 1988.

[C.5] S. Bakamidis and **Y. Boutalis**, “A New Fast Algorithm to Identify the Nearest Neighbour”, Proceedings of EUSIPCO-92, Brussels, Belgium, pp. 539-542, August 24-27, 1992.

[C.6] **Y. Boutalis**, C. Papaodyseus and E. Koukoutsis, “A New Multichannel Recursive Least Squares Algorithm for Very Robust and Efficient Adaptive Filtering”, 5th International Workshop on Systems Signal and Image Processing (IWSSIP’98), pp 115 – 118, Zagreb, Croatia, June 3-5, 1998.

[C.7] D. A. Karras, **Y. S. Boutalis** and B. G. Mertzios, “A Two-stage Methodology for Approximating Functions Based on Neural Networks with Applications to Intelligent Dynamic Robot Control”, 5th International Workshop on Systems Signal and Image Processing (IWSSIP’98), pp 139 – 142, Zagreb, Croatia, June 3-5, 1998.

[C.8] **Y. Boutalis** and O. Kosmidou, “Control of a Fed-Batch Bioprocess by using Neural Network Observers”, IFAC International Symposium on Soft Computing in Engineering Applications (SOFTCOM 98), Athens, Greece, June 22-25, 1998. Published in book of abstracts. It was selected and published (after revision) as chapter 25 in the book: Computational Intelligence in Systems and Control – Design and Applications, edited by s. G. Tzafestas, pp. 267-276, Kluwer Academic Publishers, Netherlands 2000.

[C.9] D. A. Karras, **Y. S. Boutalis** D. Mitzias and B. G. Mertzios, “A Neural Function Approximation Methodology based on Multiple Feature Extraction Techniques for Solving the Inverse Modeling Problem in Intelligent Robotics Applications”, Proceeding of the ASI’98 Conference, pp. 252 – 259, Bremen, Germany, June 14-17, 1998.

[C.10] O. I. Kosmidou and **Y. S. Boutalis**, “A comparison of guaranteed cost control methods of discrete-time linear uncertain systems”, Proceedings of the 18th IASTED International Conference MODELING, IDENTIFICATION AND CONTROL, pp. 320-322, Insbruck, Austria, February 15-18, 1999.

[C.11] **Y. Boutalis** and O. Kosmidou, “Design of a Neural Network Observer to Control a Fed-Batch Bioprocess”, European Control Conference – ECC’99, 31 August – 3 September 1999, Karlsruhe, Germany.

[C.12] **Y. S. Boutalis**, K. Tsirikolias, B.G. Mertzios and I.T. Andreadis, “Using Simple Coordinate Logic Operators to Realize Basic Morphological Operations”, Fifth International Conference on Signal Processing (ICSP 2000), Beiging – China , pp. 488-493, August 21 –25 2000.

[C.13] A. Moise, **Y. S. Boutalis** and B. G. Mertzos, “Cartesian Space Neural Network Control of Robot Manipulators”, European Workshop on Intelligent Forecasting, Diagnosis & Control (IFDICON-2001), Island of Santorini – Greece, June 25-27 2001.

[C.14] G. Devedzic, **Y. S. Boutalis** and B. G. Mertzos, “NPN Logic Based Decision Analysis”, European Workshop on Intelligent Forecasting, Diagnosis & Control (IFDICON-2001), Island of Santorini – Greece, June 25-27 2001.

[C.15] I. Andreadis, C. Fyrinides, A. Gasteratos and **Y. S. Boutalis**, “Decomposition of Grey-Scale Morphological Structuring Elements in Hardware”, European Workshop on Service & Humanoid Robots (SERVICEROB-2001), Published in Book of abstracts, Island of Santorini – Greece, June 25-27 2001.

[C.16] I. Andreadis, **Y. Boutalis** and A. Giannakidis, “Fuzzy Membership Function Generation and Defuzzification Through Analog Circuitry”, presented in 5th WSES/IEEE WORLD MULTICONFERENCE ON Circuits, Systems, Communications & Computers (CSCC 2001), Rethimnon – Greece, 8-15 Jully 2001. Published in the book: Advances in Scientific Computing, Computational Intelligence and Applications, Editors: N. Mastorakis, V. Mladenov, B. Suter, L. J. Wang, pp. 98-101, WSES press, 2001.

[C.17] **Y. S. Boutalis** and O. I. Kosmidou, “Neural Network Approaches in Bioprocess Control”, Invited paper, Proceedings of the 11th International Symposium on Modeling, Simulation and System’s Identification – SIMSIS 11, pp. 112 – 117, Galati – Romania, 12 – 13 October 2001

[C.18] S. A. Bakalexis, **Y. S. Boutalis**, and B. G. Mertzios, “Edge detection and Image Segmentation based on Nonlinear Anisotropic Diffusion”, Proceedings of 14th International Conference on Digital Signal Processinf- DSP2002, Santorini – Hellas, july 1-3, 2002.

[C.19] M. Ι. Vardavoulia, I. Andreadis and **Υ. Boutalis**, “Basic Morphological Image Processing Operations: A Tutorial”, Int. Conf. on Telecommunications, Electronics and Control, Paper No. 3-20, pages 7, Santiago, Cuba, July 17-19, 2002.

[C.20] **Υ. Boutalis**, I. Andreadis and B. Mertzios, “Fast Implementation of Morphological Operations Using a New Algebra Definition”, Int. Conf. on Telecommunications, Electronics and Control, Paper No. 3-19, pages 5, Santiago, Cuba, July 17-19, 2002.

[C.21] L Fragou, E. Ceanga, S. Caraman and **Y. Boutalis**, “A pattern recognition approach to intelligent behaviour: Switching the Strategies”, Proceedings of the International IEEE Symposium on Intelligent Systems – IS 2002, pp. 360 – 363, Varna, Bulgaria, September 10-12, 2002.

[C.22] A. G. Yiannoulis, **Y. S. Boutalis** and B. G. Mertzios, “Fast Segmentation of Color Images using the Fuzzy K-means Algorithm and Different Sampling Approaches”, Proceedings of the 9th International Workshop on Systems, Signals and Image Processing – IWSIP 2002, pp. 532-535, Manchester, U.K, 7-8 November 2002.

[C.23] D. A. Karras, **Y. S. Boutalis** and B. G. Mertzios, “A Support Vector Machine Function Approximation Approach for Solving the Inverse Modeling Problem in Intelligent Robotics Applications”, Proceedings of the 9th International Workshop on Systems, Signals and Image Processing – IWSIP 2002, pp. 447-452, Manchester, U.K, 7-8 November 2002.

[C.24]C. Voutriaridis, **Y. S. Boutalis** and B. G. Mertzios, “Ridge Polynomial Networks in Pattern Recognition”, Proceedings of the 4th EURASIP Conference on Video, Image Processing and Multimedia Communication, EC-VIP-MC2003, pp. 519-524, Zagreb – Croatia, 2-5 July 2003.

[C.25]G. A. Papakostas, **Y. S. Boutalis** and B. G. Mertzios, “Evolutionary selection of Zernike moment sets in Image Processing”, Proceedings of the 10th International Workshop on Systems, Signals and Image Processing -IWSSIP 2003, pp. 199-202, Prague – Czech Republic, 10-11 September 2003.

[C.26]**Y. S. Boutalis** and O. I. Kosmidou, “A Feedback Linearization Technique by Using Neural Networks: Application to Bioprocess Control” Proceedings of the International Conference of Computational Methods in Sciences and Engineering – ICCMSE 2003, Extended abstract, pp. 90-92, Kastoria – Greece, 12-16 September 2003.

[C.27]C. Voutriaridis, **Y. Boutalis**, A. Moise and B. Mertzios, “Recurrent Neural Networks in Behavioral Tasks of Mobile Robots”, Proceedings of the 4th Symposium on Process Control SPC-2003, pp. 48-51, Ploiesti – Romania, 8-9 October 2003.

[C.28] T. L. Kottas, **Y. S. Boutalis**, G. Devedzic and B. Mertzios, “A new method for reaching equilibrium points in Fuzzy Cognitive Maps”, 2nd IEEE International Conference on Intelligent Systems – IS 2004, pp. 53-60, Varna, Bulgaria, June 22-24, 2004.

[C.29] D. Karras, C. Vlitakis, **Y. Boutalis** and B. Mertzios “Optimizing the structure of Hierarchical Mixture of Experts using genetic algorithms”, 2nd IEEE International Conference on Intelligent Systems – IS 2004, pp. 144-149, Varna, Bulgaria, June 22-24, 2004.

[C.30] G.A. Papakostas, **Y.S. Boutalis**, D.A. Karras, and B.G. Mertzios, “On the Reconstruction Performance of Compressed Orthogonal Moments”, 1st International Conference on Informatics in Control, Automation and Robotics (ICINCO’04), pp. 468-474, Setubal – Portugal, 25-28 August 2004.

[C.31] O. I. Kosmidou, **Y.S. Boutalis** and Ch. Chatzis, “An LMI optimization approach for guaranteed cost control of systems with state and input delays”, 1st International Conference on Informatics in Control, Automation and Robotics (ICINCO’04), pp. 230-236, Setubal – Portugal, 25-28 August 2004.

[C.32] O. I. Kosmidou and **Y.S. Boutalis** “On the Ricatti equations arising in robust control approaches”, International Conference on Numerical Analysis and Applied Mathematics, Extended abstract, pp. 211-213, Chalkis – Greece, 10-14 September 2004.

[C.33] M. Gheorghiu, **Y.S. Boutalis** and A. Moise “WEB Camera Application in Security Systems”, The 12th International Symposium on Modeling, Simulation and Systems’ Identification (SIMSIS 12), pp.172-175, Dunarea de Jos University of Galati, Romania, September 24-25, 2004.

[C.34] **Y.S. Boutalis** “New kernel definition for robust to noise morphological associative memories”, International Conference on Computational Methods in Sciences and Engineering, 2004 – ICCMSE 2004, Extended abstract, pp. 79-82, Athens, Greece, November 19-23, 2004.

[C.35]P. Voulgarellis, M. A. Christodoulou, and **Y. S. Boutalis**, “A MATLAB based simulation language for aircraft ground handling operations at hub airports (SLAGOM)”, Joint 2005 International Symposium on Intelligent Control AND 13th Mediterranean Conference on Control and Automation, Limassol, pp. 334-339, Cyprus, June 27-29, 2005.

[C.36] G. Ioannidis, M. A. Christodoulou, and **Y. S. Boutalis**, “A SIMULINK based simulation language for aircraft ground handling operations at hub airports (SSLA)”, Joint 2005 International Symposium on Intelligent Control AND 13th Mediterranean Conference on Control and Automation, pp. 340-345, Limassol, Cyprus, June 27-29, 2005.

[C.37] M. A. Christodoulou, G. A. Rovithakis, A. G. Malamos, T. Varvarigou and **Y. S. Boutalis**, “Adaptive Control of Multimedia Services in Short-Term Resource Reservation Networks for QoS (Quality of Services), using Recurrent High Order Neural Networks”, Workshop on Modelling and Control of Complex Systems, Ayia Napa, Cyprus, June 30 – July 1, 2005.

[C.38] G. A. Papakostas, **Y. S. Boutalis** and B. G. Mertzios, “An exploration measure of the diversity variation in genetic algorithms”, 2nd International Conference on Informatics in Control, Automation and Robotics (ICINCO’05), pp. 260-265, Barchelona – Spain, 14-17 September 2005.

[C.39] T. L. Kottas, **Y. S. Boutalis** and M. A. Christodoulou, “A new method for weight updating in fuzzy cognitive maps using system feedback”, 2nd International Conference on Informatics in Control, Automation and Robotics (ICINCO’05), pp. 202-209, Barchelona – Spain, 14-17 September 2005.

[C.40] G. A. Papakostas, **Y. S. Boutalis**, S. Samartzidis, D. A. Karras and B. G. Mertzios, “Combining Backpropagation and Genetic Algorithms to Train Neural Networks”, 12th International Workshop on Systems, Signals and Image Processing (IWSSIP’05), pp. 171-177, Chalkida – Greece , 22-24 September 2005.

[C.41] G. K. Grigoriadis, **Y. S. Boutalis** and B. G. Mertzios, “A Distributed Arithmetic Architecture for Fast Implementation of Vector or Matrix Products”, 12th International Workshop on Systems, Signals and Image Processing (IWSSIP’05), pp. 165-169, Chalkida – Greece , 22-24 September 2005.

[C.42] M. A. Christodoulou, S. K. Kodaxakis and **Y. S. Boutalis**, “An automatic system for aircraft collision avoidance in free flight: The 3-D Case”, 5th International Conference on Technology & Automation ICTA’05, pp. 268-275, Thessaloniki, Greece, 15-16 October 2005.

[C.43]**Y. S. Boutalis**, T. L. Kottas, B. Mertzios and M. A. Christodoulou, ”A Fuzzy Rule Based Approach for storing the Knowledge Acquired from Dynamical FCMs”, 5th International Conference on Technology and Automation (ICTA05), pp. 119-124 ,Thessaloniki, Greece, 15-16 October, 2005.

[C.44] **Y. S. Boutalis** and T. L. Kottas, ” On the Adaptation Abilities of a Fuzzy Cognitive Network Based Control Approach”, 5th International Symposium on Process Control, 5th International Symposium on Process Control, pp. 22-27, Ploiesti, Romania, 17-18 May, 2006.

[C.45] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Efficient Computation of Orthogonal Moments by Suppressing the Factorial Terms”, IEEE International Workshop on Imaging Systems and Techniques (IST’06), pp. 23-27, Minory – Italy, 29 April 2006.

[C.46] T. Kottas, **Y. Boutalis**, V. Diamantis, O. Kosmidou and A. Aivasidis ”A Fuzzy Cognitive Network Based Control Scheme for an Anaerobic Digestion Process”, 14th Mediterranean Conference on Control and Applications, Session TMS – Process Control 1, pages 7, Ancona, Italy, 28-30 June, 2006.

[C.47] V. Diamantis, T. Kottas, **Y. Boutalis**, O. Kosmidou and A. Aivasidis ”Modeling Anaerobic Digestion Process Using Dynamical Fuzzy Cognitive Maps (D-FCM)”, Protection and Restoration of the Environment VIII, Session on Mathematical Modelling and System Analysis – pages 7, Chania – Crete, Greece, 3-7 July, 2006.

[C.48] **Y. S. Boutalis** and T. L. Kottas, ”The Fuzzy Conitive Network Framework in System Control Applications”, International Conference on Intelligent Systems and Computing: Theory and Applications, pp. 220-230, Ayia Napa – Cyprus, 6-7 July, 2006.

[C.49] G. A. Papakostas, **Y. S. Boutalis**, D. E. Koulouriotis and B. G. Mertzios, “A First Study of Pattern Classification by Using Fuzzy Cognitive Maps”, 13th International Workshop on Systems, Signals and Image Processing (IWSSIP’06), pp.369-374, Budapest – Hungary, 21-23 September 2006.

[C.50] **Y. S. Boutalis**, A. D. Karlis and T. Kottas, “Fuzzy Cognitive Networks + Fuzzy Controller as a self adapting control system for Tracking Maximum Power Point of a PV-Array”, IEEE Industrial Electronics, IECON 2006 – 32nd Annual Conference, pp. 4355-4360, Paris – France, 6-10 November 2006.

[C.51] G. A. Papakostas, D. A. Karras, B. G. Mertzios and **Y. S. Boutalis**, “An Efficient Invariant Image Recognition Methodology Using Wavelet Compressed Zernike Moments Denoised Through Self Organizing Maps”, IEEE International Workshop on Imaging Systems and Techniques (IST’07), pp. 1-6, Krakow – Poland, 4-5 May 2007.

[C.52] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Fast Computation of Orthogonal Fourier-Mellin Moments Using Modified Direct Method”, 14th International Workshop on Systems, Signals and Image Processing (IWSSIP’07), pp. 161-164, Maribor – Slovenia, 27-30 June 2007.

[C.53] G. A. Papakostas, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Highly Compressed Zernike Moments by Smoothing”, 14th International Workshop on Systems, Signals and Image Processing (IWSSIP’07), pp. 213-216, Maribor – Slovenia, 27-30 June 2007.

[C.54] M.A. Christodoulou, D.C. Theodoridis and **Y.S. Boutalis**, “Building Optimal Fuzzy Dynamical Systems Description Based on Recurrent Neural Network Approximation”, Proceedings of the Workshop on Networked Distributed Systems for Intelligent Sensing and Control, pp. 82-93, Kalamata, Greece, June 2007.

[C.55]. S. A. Chatzichristofis and **Y. S. Boutalis**, “A Hybrid Scheme for Fast and Accurate Image Retrieval Based on Color Descriptors”, IASTED International Conference on Artificial Intelligence and Soft Computing (ASC 2007), Proceedings: ACTA PRESS pp.280-285, Palma De Mallorca, Spain, August 29 – 31, 2007.

[C.56] **Y. Boutalis**, S. Chois, and T. Kottas, A new computational approach for high capacity multiple rule FAMs’, Proceedings of The Eleventh IASTED International Conference on Artificial Intelligence and Soft Computing (ASC’07), pp. 51-56, Palma de Mallorca, Spain, 2007. http://dl.acm.org/citation.cfm?id=1659652.1659663.

[C.57] S. A. Chatzichristofis and **Y. S. Boutalis**, “FCTH: Fuzzy Color and Texture Histogram- A Low Level Feature for Accurate Image Retrieval”, 9th International Workshop on Image Analysis for Multimedia Interactive Services, Proceedings: IEEE Computer Society, pp. 191-196, Klagenfurt, Austria, May 7 – 9, 2008.

[C.58] S. Α. Chatzichristofis and **Y. S. Boutalis**, “CEDD: Color and Edge Directivity Descriptor – A Compact Descriptor for Image Indexing and Retrieval.”, 6th International Conference in advanced research on Computer Vision Systems ICVS 2008, Proceedings: Lecture Notes in Computer Science (LNCS), Springer-Verlag, pp.312-322, Santorini, Greece, May 12 – 15, 2008.

[C.59] I. M. Spiliotis and **Y. S. Boutalis**, “Fast and Real-Time Moment Computation Methods of Gray Images Using Image Block Representation”, Proceedings of the fifth IASTED Internatinal Conference on Signal Processing, Pattern Recognition and Applications, pp. 323-328, February 13-15, Innsbruk, Austria, 2008.

[C.60] Klaus Schmidt and **Yiannis Boutalis**, “Computation of Supremal Controllable Sublanguages and Infimal Controllable Superlanguages for Fuzzy Discrete Event Systems”, Proceedings of the 16th Mediterranean Conference on Control and Automation – MED08, pp. 400-405, Ajaccio, Corsica, France, June 25-27, 2008.

[C.61] D. C. Theodoridis , **Y. S. Boutalis** and M. A. Christodoulou, “Indirect Adaptive Neuro – Fuzzy Control Based On High Order Neural Network Function Approximators”, Proceedings of the 16th Mediterranean Conference on Control and Automation – MED08, pp. 386-393, Ajaccio, Corsica, France, June 25-27, 2008.

[C.62] **Y. S. Boutalis**, M. A. Christodoulou and D. C. Theodoridis, “A New Neuro-Fuzzy Intelligent Method for Indirect Adaptive Control of Nonlinear Systems via a Novel Approach of Parameter Hopping”, Proceedings of Joint International conferences (Soft Computing & Intelligent Systems and Symposium on Advanced Intelligent Systems) SCIS&ISIS 2008, pp. 918-923, Nagoya, Japan, September 17-21, 2008.

[C.63]**Y. Boutalis**, T. Kottas and M. Christodoulou, “On the Existence and Uniqueness of Solutions for the Concept Values in Fuzzy Cognitive Maps”, Proceedings of 47th IEEE Conference on Decision and Control – CDC’08, pp. 98-104, Cancun, Mexico, Dec. 9-11,2008.

[C.64]S. Α. Chatzichristofis, **Y. S. Boutalis** and Mathias Lux, “Selection of the Proper Compact Composite Descriptor for Improving Content Based Image Retrieval.”, The Sixth IASTED International Conference on Signal Processing, Pattern Recognition and Applications SPPRA 2009, Proceedings: ACTA PRESS pp.134-140, February 17 – 19, 2009, Innsbruck, Austria 2009.

[C65] S. Α. Chatzichristofis and **Y. S. Boutalis**, “Content Based Medical Image Indexing and Retrieval Using a Fuzzy Compact Composite Descriptor”, The Sixth IASTED International Conference on Signal Processing, Pattern Recognition and Applications SPPRA 2009, Proceedings: ACTA PRESS pp.1-6, Innsbruck, Austria, February 17-19, 2009.

[C.66] D. Theodoridis, M. Christodoulou and **Y. Boutalis**, “Direct Adaptive Control of Unknown Multi-variable Nonlinear Systems with Robustness Analysis using a new Neuro-Fuzzy Representation and a Novel Approach of Parameter Hopping”, Proceedings of the 17th Mediterranean Conference on Control & Automation, pp. 558-563, Thessaloniki, Greece, June 24 – 26, 2009.

[C.67] M. Christodoulou, **Y. Boutalis** and T. Kottas, Adaptive Estimation of Fuzzy Cognitive Maps with Proven Stability and Parameter Convergence”, SIAM Conference on Control and its Applications, July 6-8, Denver Colorado, 2009. (in Book of abstracts)

[C.68] M. Christodoulou, **Y. Boutalis** and D. Theodoridis, Indirect Adaptive Control of Unknown MIMO Nonlinear Systems Using a New Neuro-Fuzzy Representation”, SIAM Conference on Control and its Applications, July 6-8, Denver Colorado, 2009. (in Book of abstracts)

[C.69] K Zagoris, S. Α. Chatzichristofis, Nikolas Papamarkos and **Y. S. Boutalis**, “Img(Anaktisi): A Web Content Based Image Retrieval System.”, «2nd International Workshop on Similarity Search and Applications (SISAP)», Proceedings: IEEE Computer Society, pp.154-155, Prague, Czech Republic, August 29-30, 2009.

[C.70] S. Α. Chatzichristofis, **Y. S. Boutalis** and Mathias Lux, “Img(Rummager): An Interactive Content Based Image Retrieval System.”, «2nd International Workshop on Similarity Search and Applications (SISAP)», Proceedings: IEEE Computer Society, pp.151-153, Prague, Czech Republic, August 29-30, 2009.

[C.71]D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “A new Neuro-Fuzzy Dynamical System Definition Based on High Order Neural Network Function Approximators”, Proceedings of the European Control Conference ECC-09, pp. 3305-3310, Budapest, Hungary, August 23-26, 2009.

[C.72] **Y. Boutalis**, M. Christodoulou and D. Theodoridis, “A new Neuro-Fuzzy Method for Direct Adaptive Control of Unknown Nonlinear Systems with Robustness Analysis”, Proceedings of the European Control Conference ECC-09, pp. 934-939, Budapest, Hungary, August 23-26, 2009.

[C.73]D. Theodoridis, **Y. Boutalis** and M. Christodoulou, “Direct Adaptive Regulation and Robustness Analysis for Systems in Brunovsky Form Using a New Neuro-Fuzzy Method”, Proceedings of the European Control Conference ECC-09, pp. 3317-3322, Budapest, Hungary, August 23-26, 2009.

[C.74] G. Tampakis, K. Schmidt and **Y. Boutalis**, “Mobile Robot Navigation based on Fuzzy Discrete Event Systems”, Proceedings of the 2nd IFAC International Conference on Intelligent Control Systems and Signal Processing – ICONS 2009, Istanbul, Turkey, Session ICONS FL, pages 6, September 21-23, 2009.

[C.75]M. A. Christodoulou, **Y. S. Boutalis** and D. C. Theodoridis, “Indirect Adaptive Control of Unknown Nonlinear Systems with Parametric and Dynamic Uncertainties: A new Neuro-Fuzzy Method, Employing a Novel Approach of Parameter Hopping”, Proceedings of the 2nd IFAC International Conference on Intelligent Control Systems and Signal Processing – ICONS 2009, Istanbul, Turkey, Session ICONS FL, pages 6, September 21-23, 2009.

[C.76]T. Kottas, **Y. Boutalis** and M. Christodoulou, “Bilinear Adaptive Parameter Estimation in Fuzzy Cognitive Networks”, The 19th International Conference on Artificial Neural Networks, 14-17 September, Limassol, Cyprus, 2009, proceedings at Lecture Notes in Computer Science, ISBN 978-3-642-04276-8, pp. 875-884, Springer-Verlag, 2009.

[C.77] S. A. Chatzichristofis, **Y. S. Boutalis** and M. Lux, “SpCD – Spatial Color Distribution Descriptor. A Fuzzy Rule Based Compact Composite Descriptor Appropriate for Hand Drawn Color Sketches Retrieval”, 2nd International Conference on Agents and Artificial Intelligence (ICAART), Valencia Spain, pp. 58-63, 22-24 January, 2010. (Received the Best paper Award -BPA- of the conference)

[C.78] H. Psilakis, **Y. S. Boutalis**, T. Giotis and M. Christodoulou “Adaptive Identification of Fuzzy Cognitive Networks”, 4th International Symposium on Communications, Control and Signal Processing, ISCCSP 2010, pages 6, Limasol, Cyprus, 3-5 March 2010.

[C.79] S. A. Chatzichristofis, **Y. S. Boutalis** and Avi Arampatzis, “Accelerating Image Retrieval Using Binary Haar Wavelet Transform on the Color and Edge Directivity Descriptor”, The 5th International Multi-Conference on Computing in the Global Information Technology (ICCGI 2010), September 20 – 25, 2010, Valencia, Spain, Proceedings: IEEE Computer Society, pp. 41 – 47, 2010. (Received the **Best paper Award -BPA- of the conference**)

[C.80] S. A. Chatzichristofis and **Y. S. Boutalis**, “Performance Study Of The Most Commonly Used Image Retrieval Evaluation Methods”, The Sixth IASTED International Conference on Advances in Computer Science and Engineering (ACSE), March 15 to 17, Sharm El Sheikh, Egypt, pp.27-32, 2010.

[C.81] S. A. Chatzichristofis, **Y. S. Boutalis**, D. A. Karras and B. G. Mertzios, “Content based mrsi image indexing and retrieval involving a fuzzy descriptor.”, IEEE International Conference on Imaging Systems and Techniques (IST), July 1 – 2, Thessaloniki, Greece, pp. 373 – 378, 2010.

[C.82] K. Zagoris, S. A. Chatzichristofis, N. Papamarkos and **Y. S. Boutalis**, “Automatic Image Annotation and Retrieval Using the Joint Composite Descriptor”, 14th Panhellenic Conference on Informatics (PCI), September 10 to 12, Tripoli, Greece, Proceedings: IEEE Computer Society, pp.143-147, 2010.

[C.83] Y. S.** Boutalis**, K. Schmidt, “Multi-objective decision making using fuzzy discrete event systems: A mobile robot example”, 18th Mediterranean Conference on Control and Automation, pp. 575-580, Marrakech, Morocco, June 23-25, 2010.

[C.84] N. A. Sofianos, **Y. S. Boutalis**, and M. A. Christodoulou, “Feedback Linearization Adaptive Fuzzy Control for Nonlinear Systems: A Multiple Models Approach”, 19th Mediterranean Conference on Control and Automation, pp. 1453-1459, Aquis Corfu Holiday Palace, Corfu, Greece, June 20-23, 2011.

[C.85] T. Giotis, M. A. Christodoulou and **Y. S. Boutalis**,, ” Identification of Combination Therapy Models using a Neuro Fuzzy Identification Scheme”, 19th Mediterranean Conference on Control and Automation, pp. 1283-1288, Aquis Corfu Holiday Palace, Corfu, Greece, June 20-23, 2011.

[C.86] S. Α. Chatzichristofis, C. Iakovidou, and **Y. S. Boutalis**, “Content Based Image Retrieval Using Visual-Words Distribution Entropy”, 5th International Conference on Computer Vision / Computer Graphics Collaboration Techniques and Applications – MIRAGE 2011, Lecture Notes in Computer Science, pp. 204-215, Rocquencourt, France, October 10-12, 2011.

[C.87] S. Α. Chatzichristofis, K. Zagoris, **Y. Boutalis** and Avi Arampatzis, “A Fuzzy Rank-Based Late Fusion Method For Image Retrieval”, The 18th International Multi Media Modeling Conference (IMMM), Lecture Notes in Computer Science, pp. 463–472, Klagenfurt, Austria, January 4-6, 2012.

[C.88] L. T. Tsochatzidis, A. Ch. Kapoutsis, N. I. Dourvas, S. A. Chatzichristofis, **Y. S. Boutalis** and K. Zagoris, “TSOKADO: An Image Search Engine Performing Recursive Query Recommendation Based on Visual Information”, The Fifth International Conference on Advances in Computer-Human Interactions (ACHI 2012)», pp. 106-111, Valencia, Spain, January 30 – February 2, 2012.

[C.89] Y. Boutalis, T. Moor and K. Schmidt, “Fuzzy Hybrid Systems Modeling with Application in Decision Making and Control”, IEEE International Conference “Intelligent Systems”, IS’12, pp. 290- 296, Sofia, Bulgaria, September 6-8, 2012.

[C.90]N. Sofianos, **Y. Boutalis**, B. Mertzios and O. Kosmidou ‘Adaptive Switching Control of Fuzzy Dynamical Systems Based on Hybrid T-S Multiple Models”, IEEE International Conference “Intelligent Systems”, IS’12, pp. 397 – 402, Sofia, Bulgaria, September 6-8, 2012. (The paper was selected among the best papers of the conference)

[C.91] S. Chatzichristofis, O. Marques, M. Lux and **Y. Boutalis**, ‘Image Encryption using the Recursive Attributes of the eXclusive-OR (XOR) Filter on Cellular Automata’, 10th International Conference on Cellular Automata for Research and Industry (ACRI2012), Lecture Notes in Computer Science 7495, pp. 340-350, Santorini, Greece, September 24-27, 2012.

[C.92]** **Y. **Boutalis**, M. Christodoulou and P. Andreadis, “Bilinear Neurofuzzy Modeling for Adaptive Approximation and Indirect Control of Nonlinear Systems”, 21st Mediterranean Conference on Control and Automation, pp. 284-289, June 25-28, Chania, Crete – GREECE, 2013.

[C.93]** **N. Sofianos and Y. **Boutalis**, “Improving the Performance of Multiple Models Fuzzy Control by Using Semi-Fixed and Adaptive Models”, 21st Mediterranean Conference on Control and Automation, pp. 278-283, June 25-28, Chania, Crete – GREECE, 2013.

[C.94]** **L. Tsochatzidis, C Iakovidou, S. Chatzichristofis and Y. **Boutalis**, ” Golden retriever: a Java based open source image retrieval engine “, Proceedings of the 21st ACM international conference on Multimedia – MM13, pp. 847-850, October 21-25, Barcelona-Spain, 2013.

[C.95]** **I. Michailidis, S. Baldi, E. B. Kosmatopoulos and Y. **Boutalis**, “Optimization-Based Active Techniques for Energy Efficient Building Control. Part I: Optimization Algorithms”, International Conference on Buildings Energy Efficiency and Renewable Energy Sources (BEE-RES 2014), pp. 35-38, June 1-3, Kozani, Greece, 2014.

[C.96]** **I. Michailidis, S. Baldi, E. B. Kosmatopoulos and Y. **Boutalis**, “Optimization-Based Active Techniques for Energy Efficient Building Control. Part II: Real-life Experimental Results”, International Conference on Buildings Energy Efficiency and Renewable Energy Sources (BEE-RES 2014), pp. 39-42, June 1-3, Kozani, Greece, 2014.

[C.97]** **C. Iakovidou, N. Anagnostopoulos, A. Ch. Kapoutsis, Y. **Boutalis** and S. A. Chatzichristofis, “Searching Images with MPEG-7 (& MPEG-7 like) Powered Localized Descriptors: the SIMPLE Answer to Effective Content Based Image Retrieval”, 12th International Content Based Multimedia Indexing Workshop, pages 6, June 18-20, Klagenfurt – Austria, 2014.

[C.98]** **N. Anagnostopoulos, C. Iakovidou, A. Amanatiadis, Y. **Boutalis** and S. A. Chatzichristofis, “Two-Staged Image Colorization Based on Salient Contours”, 2014 IEEE International Conference On Imaging Systems and Techniques (IST’ 2014), pp. 381 – 385, October 14-17, Santorini – Greece, 2014.

[C.99]** **C. Iakovidou, L. Bampis, S. A. Chatzichristofis, Y. **Boutalis** and A. Amanatiadis, “Color and Edge Directivity Descriptor on GPGPU”, 23rd Euromicro International Conference on Parralel, Distributed and Network-Based Processing (PDP15), March 04-05, Turku, Finland, 2015.

[C.100] T. Kottas, D. Stimoniaris, D. Tsiamitros, V. Kikis, Y. **Boutalis** and E. Dialynas, “New Operation Scheme and Control of Smart Grids using Fuzzy Cognitive Networks”, PowerTech Eindhoven 2015, June 29 – July 2, Eindhoven, Germany, 2015.