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The CA3 group is composed of a research and development team and a group of qualified scientific advisors directly involved in R&D projects where CA3 is a partner.

We also have a variable number of visiting scientists and collaborators working with us. The former member section has previous group members.

Ehsan Shahamatnia - Research and Development Team
Ehsan Shahamatnia is a PhD candidate of the Electrical and Computer Engineering program (DEEC) at Universidade Nova de Lisboa. He received a BSc. degree in software engineering and a MSc. degree in artificial intelligence and robotics in 2006 and 2010 respectively. His Master's thesis topic involved development of a hybrid swarm intelligence system for computer vision and tracking deformable objects. He is currently a researcher at CA3-Computational Intelligence Research Group of UNINOVA, where he participates in applied research and development projects to create solutions for real-world problems mainly from space domain. His main focus for doctoral studies is developing a framework for processing solar images and analyzing solar features and proposing a tool for solar feature characterization and tracking.
Research Interests
  • Evolutionary computing and swarm intelligence
  • Hybridization methods (memetic algorithms, etc)
  • Digital image processing (active contour models)
  • Decision support systems
  • Machine learning
Current Projects
Publications

Dorotovic, I., Shahamatnia, E., Lorenc, M., Rybanský, M., Ribeiro, R. A., Fonseca, J. M. Sunspots and Coronal Bright Points Tracking using a Hybrid Algorithm of PSO and Active Contour Model. Sun and Geosphere, (submitted).

Shahamatnia, E., Dorotovic, I., Ribeiro, R. A., Fonseca , J. M. (2013). A PSO/Snake Hybrid Algorithm for Determining Differential Rotation of Coronal Bright Points, ECTA 2013, (submitted).

Rybanský, M., Dorotovic, I., Lorenc, M., Shahamatnia, E., Ribeiro, R. A., Fonseca, J. M. (2012). Searching for a jet Stream, Proceedings of “21st National Solar Physics Meeting, Stará Turá, Slovakia, 18-22 June.

Shahamatnia, E., Dorotovi, I., Ribeiro, R.A., and Fonseca, J.M. (2012) Towards an automatic sunspot tracking: Swarm intelligence and snake model hybrid, Acta Futura, 5, pp.151-159. DOI: 10.2420/AF05.2012.153

Shahamatnia, E., Dorotoviè, I., Ribeiro, R., and Fonseca, J. M., "Swarm Intelligence and Snake Model for Automatic Sunspot Tracking", In the proceedings of AI in space: Intelligence beyond planet Earth workshop, 22nd International Joint Conference on Artificial Intelligence (IJCAI), Barcelona, Spain, 16-22 July, 2011.

Ehsan Shahamatnia, Ivan Dorotoviè, and Rita Ribeiro, "Particle Swarm Optimization Hybrid: A Case study of Sunspot Studies", In the proceedings of Optimization 2011, Caparica, Portugal, 24-27 July, 2011.

A. Jaberi, R. Ayanzadeh and E. Shahamatnia, “A Novel Fuzzy Cellular Automata for Uniform Random Number Generation”, Proc. of 2nd International Conference on Contemporary Issues in Computer and Information Sciences (CICIS 2011), (Indexed by IEEExplore ), Zanjan, Iran, 2011.

Shahamatnia, E., Ebadzadeh, M. M., “Application of Particle Swarm Optimization and Snake Model Hybrid on Medical Imaging”, In the proceedings of Third International Workshop on Computational Intelligence in Medical Imaging, CIMI, (IEEE Symposium Series on Computational Intelligence), Paris, France, 11-15 April, 2011.

R. Ayanzadeh, A.S.Z. Mousavi and E. Shahamatnia, “Fuzzy Cellular Automata Based Random Numbers Generation”, Trends in Applied Sciences Research, (2012) 7(1), pp:96-102. DOI: 10.3923/tasr.2012.96.102, URL: doi=tasr.2012.96.102

Ehsan Shahamatnia, Ramin Ayanzadeh, Rita A. Ribeiro, and Saeid Setayeshi, “Adaptive Imitation Scheme for Memetic Algorithms”, DoCEIS 2011, IFIP AICT Vol. 349, Published by Springer, pp. 109-116, 2011.

Fariborz Mahmoudi, Mohsen Mirzashaeri, Ehsan Shahamatnia and Saed Faridnia, “A Novel Handwritten Letter Recognizer Using Enhanced Evolutionary Neural Network”, proceedings of eForensics 2009 conference, Adelaide, Australia, 19-21 Jan, 2009.

R. Ayanzadeh, E. Shahamatnia and S. Setayeshi, “Determining Optimum Queue Length in Computer Networks by Using Memetic Algorithms”, Journal of Applied Sciences, Vol. 9, No.15, pp:2847-2851, 2009.

R. Ayanzadeh, E. Shahamatnia, F. Mahmoudi and S. Setayeshi, “Modeling Optimum Queue Management in Computer Networks”, 2nd Joint Congress on Fuzzy and Intelligent Systems, Tehran, Iran, October 2008.

S. Pasban, A. Habibi, E. Shahamatnia and B. Saman, “Artificial Fish Swarm for Fuzzy C-Mean Clustering”, 2nd Joint Congress on Fuzzy and Intelligent Systems, Tehran, Iran, October 2008, In Persian.

S. Pasban, A. Habibi, E. Shahamatnia, F. Mahmoudi and M. Feizi, “A Double-Stage Median Filter Enhanced with Particle Swarm Optimization for Noise Detection and Obviation of Digital Images”, 5th Conference on Machine Vision and Image Processing , Tabriz, Iran, November 2008, In Persian.

A.Habibi, M.Naghian, M.Teshnelab, and E.Shahamatnia, “Data Oriented Modeling of Uniform Random Variable: Applied Approach”, ICMS, 4th International Conference on Mathematics and Statistics, Vienna, Austria, May, 2007.

A.Habibi, M.Naghian, M.Teshnelab, and E.Shahamatnia, “Fuzzy Based Problem-Solution Data Structure As a Data Oriented Model for ABS Controlling”, ICSE, 4th International Conference on Intelligent Control Systems Engineering, Barcelona, Spain, April, 2007.

M.Haghifam, M.Babazadeh, E.Shahamatnia, “Employing AI in Management Information Systems”, 5th National Conference on Basic Sciences, Ghaemshahr, Iran, October 2006, In Persian.

R.Ayanzadeh, E.Shahamatnia, M.Haghifam, “Optimization Using Memetic Algorithms”, 5th National Conference on Basic Sciences, Ghaemshahr, Iran, October 2006, In Persian.

E.Shahamatnia, R.Ayanzadeh, A.Habibi, “Bulk Data Processing Using Optimized Resource Allocation Method”, 5th National Conference on Basic Sciences , Ghaemshahr, Iran, October 2006, In Persian.

E.Shahamatnia, R.Ayanzadeh, A.Habibi, “Multiprocessor Scheduling Using a Dynamic Genetic Algorithm”, 5th National Conference on Engineering Sciences, Qazvin, Iran, August 2006, In Persian.

Research Engineer

Edifício UNINOVA/CRI, Sala 1.4
+351 21 294 96 25 (direct)
+351 21 294 85 27/8/9 (ext. 13741)