Βολογιαννίδης Σταύρος

2005 - Dpt of Mathematics, Aristotle University of Thessaloniki under the supervision of professor A.I.G. Vardulakis entitled: «Algebraic and polynomial numerical methods in control theory»

Postdoc

[1] 1/1/2010 - 31/12/2010

Linearizations of polynomial matrices and applications in Control Theory, Dpt of Mathematics, Aristotle University of Thessaloniki

Research Projects

[1] 3/11/1999-2/11/2001.
I collaborated with the Institute of Information Theory and Automation (UTIA is a research institute of the Academy of Sciences of the Czech Republic), in a research project entitled "Development of algorithms and of a web-based mathematical package for analysis and synthesis of multivariable Control Systems". The project was funded by the Greek Secretariat of Research and Technology (GSRT).

[2] 1/4/2000-31/12/2000.
I participated as a researcher, software engineer and analyst in the project GALENOS (Generic advanced low-cost trans-European network over satellite). The project was included in the TEN- Telecom Programme of the European Community. This project allowed the establishment of a trans-European competence network via satellite dedicated to real-time telemedical applications. In total, 14 terminals have been installed and operated for over a year in six countries (France, Italy, Greece, Germany, Bulgaria and Tunisia), connecting up to 15 different hospitals. The operation of the network has been successfully demonstrated in 9 occasions during exhibitions of worldwide renown (CEBIT, SATEXPO, MEDICA, etc.).

[3] 6/11/2000-13/3/2002.
I worked as a researcher and software engineer in the project entitled "Integrated software package for industrial and educational automatic control applications". Several algorithms useful in the analysis and synthesis of state space and descriptor systems were implemented in Mathematica and MAPLE.

[4] 10/4/2004-10/9/2005.
I collaborated with the Institute of Information Theory and Automation (UTIA is a research institute of the Academy of Sciences of the Czech Republic), in a research project entitled "Analysis and synthesis of discrete time digital filters for communications based on advanced polynomial methods".

[5] 1/4/2007–31/3/2008 .
worked as a researcher and programmer for the development of an automatic control package for descriptor state space systems on Mathematica. The package was developed in cooperation with Wolfram Research as an add-on to Control System Professional. (http://www.wolfram.com/products/applications/control/ ).

[6] 6/2009

I participated in the research and development of a telepresence solution for GRNET. The outcome of the project is www.epresence.gr.GRNET S.A. provides Internet connectivity, high-quality e-Infrastructures and advanced services to the Greek Educational, Academic and Research community, aiming at minimizing the digital divide and at ensuring equal participation of its members in the global Society of Knowledge. Additionally, GRNET develops digital applications that ensure resource optimization for the Greek State, modernize public functional structures and procedures, and introduce new models of cooperation between public bodies, research and education communities, citizens and businesses.

[7] 1/1/2010 -31/12/2010

Postdoctoral researcher in the department of Mathematics, Aristotle university of Thessaloniki, funded by an excellence grant from the university's research committee.

Journal publications :

[1] N. P. Karampetakis and S. Vologiannidis, DFT calculation of the generalized and drazin inverse of a polynomial matrix, Applied Mathematics and Computation, 143 (2003), pp 501-521. (PDF)

[2] S. Vologiannidis and N. P. Karampetakis, Inverses of Multivariable Polynomial Matrices by Discrete Fourier Transform, Multidimensional Systems and Signal Processing, 15 (4): 341-361, October 2004. (PDF)

[3] N. P. Karampetakis and S. Vologiannidis, Infinite elementary divisor structure-preserving transformations for polynomial matrices, International Journal of Applied Mathematics and Computer Science, 2003, Vol. 13, No 4, pp 493-503. (PDF)

[4] N. P. Karampetakis S. Vologiannidis and A.I.G. Vardulakis, A new notion of equivalence for discrete time AR representations, International Journal of Control, 15 April 2004, Vol. 77, No. 6, pp 584-597. (PDF)

[5] E.N. Antoniou, S. Vologiannidis, A new family of companion forms of polynomial matrices, Electronic Journal of Linear Algebra, 2004, Vol. 11, pp 78-87. (PDF)

[6] E.N. Antoniou, A.I.G. Vardulakis and S. Vologiannidis, Numerical Computation of Minimal Polynomial Bases: A Generalized Resultant Approach, Linear Algebra and its Applications, Volume 405, 1 August 2005, Pages 264-278. (PDF)

[7] E.N. Antoniou, S. Vologiannidis, Linearizations of polynomial matrices with symmetries and their applications, Electronic Journal of Linear Algebra, volume 15 (2006), pages 107-114. (PDF)

[8] N. Karampetakis, E.N. Antoniou, A.I.G. Vardulakis, S. Vologiannidis, Symbolic Computations on Rings of Rational Functions and Applications in Control Engineering, Symbolic Computations on Rings of Rational Functions and Applications in Control Engineering, Lecture Notes in Computer Science, Theoretical Computer Science and General Issues, Springer, 2009, ISBN: 978-3-642-04771-8.

[9] N.P. Karampetakis, S. Vologiannidis, On the fundamental matrix of the inverse of a polynomial matrix and applications to ARMA representations, Linear Algebra and its Applications, Volume 431, Issue 11, 1 November 2009, pages 2261-2276. (PDF)

[10] S. Vologiannidis, E.N. Antoniou, A permuted factors approach for the linearization of polynomial matrices, Mathematics of Control, Signals, and Systems, March 2011 (PDF).

[11] E.N. Antoniou, S. Vologiannidis, On the characterization and parametrization of strong linearizations of polynomial matrices, Electronic Journal of Linear Algebra, volume 31 (2016), pages 610-619. (PDF).

[12] E.N. Antoniou, S. Vologiannidis, On the reduction of 2-D polynomial systems into first order equivalent models, Multidimensional Systems and Signal Processing, May 2019, 1-20 (DOI).

[13] Polychronis Charitidis, Stavros Doropoulos, Stavros Vologiannidis, Ioannis Papastergiou, Sophia Karakeva, Towards countering hate speech against journalists on social media, Online Social Networks and Media, May 2020, Volume 17 (Arxiv).

[14] Georgios Karalekas, Stavros Vologiannidis and John Kalomiros, EUROPA: A Case Study for Teaching Sensors, Data Acquisition and Robotics via a ROS-Based Educational Robot, Sensors 2020, 20(9), 2469 (DOI).

[15] Stavros Vologiannidis and Efstathios Antoniou, On the reduction of repetitive processes into singular and non-singular Roesser models, Multidimensional Systems and Signal Processing, (2021), 1-14 (DOI)

[16] S. Vologiannidis, E.N. Antoniou, N. Karampetakis, A.I.G. Vardulakis, Polynomial matrix equivalences: system transformations and structural invariants, IMA Journal of Mathematical Control and Information (2021) 38, 54-73. (PDF).

[17] Polychronis Charitidis,Sotirios Moschos,Archontis Pipertzis,Ioakeim James Theologou, Michael Michailidis,Stavros Doropoulos,Christos Diou and Stavros Vologiannidis StreetScouting: A Deep Learning Platform for Automatic Detection and Geotagging of Urban Features from Street-Level Images, 2022, Applied Sciences, Vol 13, Issue 1 (PDF).

[18] Georgios Karalekas, John Kalomiros, Stavros Vologiannidis, Teaching Machine Learning in K-12 using Robotics , Education Sciences, 2023, 13(1) (PDF).

[19] Sotirios Moschos, Polychronis Charitidis, Stavros Doropoulos, Anastasios Avramis, Stavros Vologiannidis, StreetScouting dataset: A Street-Level Image dataset for finetuning and applying custom object detectors for urban feature detection, Data in Brief, Volume 48, 2023, 109042, ISSN 2352-3409, DOI.

[20] E. Antoniou, I. Kafetzis, and S. Vologiannidis, A Review of Linearization Methods for Polynomial Matrices and their Applications, Analysis, Geometry, Nonlinear Optimization and Applications, Volume 9. in Series on Computers and Operations Research, 2023, DOI.

[21] Karapalidou, E.; Alexandris, N.; Antoniou, E.; Vologiannidis, S.; Kalomiros, J.; Varsamis, D., Implementation of a Sequence-to-Sequence Stacked Sparse Long Short-Term Memory Autoencoder for Anomaly Detection on Multivariate Timeseries Data of Industrial Blower Ball Bearing Units, Sensors 2023, 23, 6502. https://doi.org/10.3390/s23146502

[22] J. Kalomiros, J. Vourvoulakis and S. Vologiannidis, A hardware accelerator for the Semi-Global matching stereo algorithm, ACM Transactions on Reconfigurable Technology and Systems, Volume 17, Issue 1, Article No.: 5, 2024, pp 1–25, PDF

Conference publications :

[1] N. P. Karampetakis, S. Vologiannidis and A.I. Vardulakis, Notions of equivalence for discrete time AR-representations, 15th IFAC World Congress 2002, Barcelona.

[2] N. P. Karampetakis and S. Vologiannidis, Infinite elementary divisor structure-preserving transformations for polynomial matrices, 8th IEEE International Conference on Methods and Models in Automation and Robotics, Szczecin, Poland, 2-5 September, 2002.

[3] N. P. Karampetakis and S. Vologiannidis, DFT calculation of the generalized and drazin inverse of a polynomial matrix, IEEE Conference on Computer Aided Control System Design CACSD’02, Glasgow, Scotland, 18-20 September 2002.

[4] A.I. Vardulakis, N. P. Karampetakis, E. Antoniou, P. Tzekis and S. Vologiannidis, 2003, A descriptor systems package for Mathematica, 11th IEEE Mediterranean Conference on Control and Automation (MED'03), Rhodes, Greece.

[5] S. Vologiannidis and N. P. Karampetakis, Inverses of Multivariable Polynomial Matrices by Discrete Fourier Transforms, European Control Conference 2003, Cambridge, 1-4 September 2003, U.K.

[6] N. P. Karampetakis and S. Vologiannidis, On the Laurent series expansion of the resolvent of a polynomial matrix and applications, 12th IEEE Mediterranean Conference on Control and Automation (MED'04), Kusadasi, 6-9 June 2004, Turkey.

[7] E.N. Antoniou, A.I.G. Vardulakis and S. Vologiannidis, On the Computation of Minimal Polynomial Bases, 12th IEEE Mediterranean Conference on Control and Automation (MED'04), Kusadasi, 6-9 June 2004, Turkey.

[8] Petr Kujan, Martin Hromcik, Michael Sebek, N.P. Karampetakis, E.N. Antoniou, S. Vologiannidis, Effective computations with 2-variable polynomial matrices in Mathematica, 12th IEEE Mediterranean Conference on Control and Automation (MED'04), Kusadasi, 6-9 June 2004, Turkey.

[9] E.N. Antoniou, S. Vologiannidis, N. Karampetakis, Linearizations of polynomial matrices with symmetries and their applications, Proc. of the Joint 2005 International Symposium on Intelligent Control & 13th Mediterranean Conference on Control and Automation (2005 ISIC-MED), June 2005, Limassol, Cyprus.

[10] Antonis Vardulakis, Nikos Karampetakis, Efstathios Antoniou, Stavros Vologiannidis, A Mathematica-based Package for Descriptor Systems, 9th IEEE International Symposium on Computer-Aided Control System Design, September 3-5, 2008, San Antonio, Texas (USA).

[11] N. Karampetakis, E.N. Antoniou, A.I.G. Vardulakis, S. Vologiannidis, Symbolic Computations on Rings of Rational Functions and Applications in Control Engineering, Eurocast 2009 Workshop on Intelligent Information Processing, 15/2/2009 – 20/2/2009, Las Palmas de Gran Canaria, Spain.

[12] S. Vologiannidis, E.N. Antoniou, M. Kasidiaris, Ζero coprime equivalent matrix pencils of a 2 - D polynomial matrix, 7th Workshop on Multidimensional Systems (nDS 11), Poitiers, France, 2011.

[13] A. Vardulakis, N. Karampetakis, E. Antoniou, S. Vologiannidis,Notions of equivalence for linear multivariable systems, 21st Mediterranean Conference on Control and Automation, Chania, Greece, 2013

[14] P. Tzekis , E. Antoniou, S. Vologiannidis, Computation of the general solution of a multivariate polynomial matrix Diophantine equation, 21st Mediterranean Conference on Control and Automation, Chania, Greece, 2013

[15] Grigorios Tsoumakas, Apostolos Papadopoulos, Weining Qian, Stavros Vologiannidis, Alexander D’yakonov, Antti Puurula, Jesse Read, Jan Švec, Stanislav Semenov,WISE 2014 Challenge: Multi-label Classification of Print Media Articles to Topics, Web Information Systems Engineering – WISE 2014, Thessaloniki, Greece, 2014

[16] E. Antoniou, S. Vologiannidis, On the parametrization of linearizations of polynomial matrices, 22nd Mediterranean Conference on Control & Automation, Palermo, Italy, 2014

[17] S. Vologiannidis, E. Antoniou, A new approach on the linearization of 2-D polynomial matrices, 2019 - 6th International Conference on Control, Decision and Information Technologies, Paris, France, 2019

[18] Georgios Karalekas, S. Vologiannidis, J. Kalomoiros, EUROPA - A ROS-based Open Platform for Educational Robotics, 10th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 18-21 September, 2019, Metz, France

[19]Eleni Partalidou, Eleftherios Spyromitros-Xioufis, Stavros Doropoulos, Stavros Vologiannidis, Konstantinos I. Diamantaras, Design and implementation of an open source Greek POS Tagger and Entity Recognizer using spaCy, IEEE/WIC/ACM International Conference on Web Intelligence, October 14--17, 2019, Thessaloniki, Greece

[20] Christina Tzogka, Fotini Koidaki, Stavros Doropoulos, Ioannis Papastergiou, Efthymios Agrafiotis, Katerina Tiktopoulou and Stavros Vologiannidis, OCR Workflow: Facing Printed Texts of Ancient, Medieval and Modern Greek Literature, QURATOR 2021 – Conference on Digital Curation Technologies

[21] John Kalomiros, John Vourvoulakis and Stavros Vologiannidis, A Workflow for Designing Video Processing Pipelines with PYNQ, IDAACS 2021, Cracow, Poland, September 22-25, 2021

[22] N. Passalis, M. Tzelepi, P. Charitidis, S. Doropoulos, S. Vologiannidis and A. Tefas, Deep Video Stream Information Analysis and Retrieval: Challenges and Opportunities, 5th IEEE International Conference on Multimedia Information Processing and Retrieval (IEEE-MIPR 2022)

[23] John Kalomiros, John Vourvoulakis and Stavros Vologiannidis, A testbench for stereo-processing acceleration based on PYNQ and the StereoPi, IEEE IDAACS 2023, 12th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 7-9 September, 2023, Dortmund University of Applied Sciences and Arts, Dortmund, Germany

[24] Elisavet Karapalidou, Agisilaos Efraimidis, Stavros Vologiannidis, Efstathios Antoniou, Modeling the Health Status of a Ball Bearing for Predictive Maintenance Purposes, 9th International Conference on Control, Decision and Information Technologies, July, 2023, Rome, Italy

[25] J. Kalomiros, J. Vourvoulakis and S. Vologiannidis, A testbench for stereo processing acceleration, based on PYNQ and the StereoPi, 12th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (2023), 7-9 September 2023, Dortmund, Germany.

[26] John Kalomiros, John Vourvoulakis, and Stavros Vologiannidis, A Hardware Accelerator for the Semi-Global Matching Stereo Algorithm, 33rd International Conference on Field-Programmable Logic and Applications, GOTHENBURG, SWEDEN, September 2023.