Email: 

Position: 

director

Information: 

Tadeusz Czachórski received M.Sc., Ph.D., D.Sc. degrees in informatics respectively in 1972, 1979, 1988, and professor title in 1999. Currently he is a professor at the Silesian University of Technology (Division of Computer Systems Theory and Design) and the director of the Institute of Theoretical and Applied Informatics of Polish Academy of Sciences, IITiS PAN, Gliwice. He spent more than five years at several French universities and research institutes (IRISA Rennes, University of Versailles, ISEM Orsay Paris-Sud, Paris-Nord, National Institute of Telecommunication) and still maintains scientific cooperation with these centres. He also participated in Next Generation Internet and Future Internet European projects concerning such issues as multiservice-multimedia, mobility, services convergence, quality of service and variable connectivity, where he was coresponsible for the work package concerning analytical, numerical and simulation methods to model performance of the Internet. A member of Polish project Future Intenet Engineering. Currently involved in Secure and Safe Internet of Things H2020 project where IITiS PAN is the coordinating institution. He is a member of programme committees of some periodic international and national conferences, e.g. Heterogeneous Networks HET-NETS, European Workshop on Performance Engineering EPEW, Polish Teletraffic Symposium, Computer Networks, Internet in the Information Society, ISCIS. 1990 - 2007 he was scientific secretary of the Committee of Informatics of Polish Academy of Sciences, 2007 - 2011 vice-president of this committee, currently head of the section of computer networks and distributed systems of the committee. Chair of IFIP Technical Committee TC5 "Information Technology and Applications" and member of IFIP General Assembly. His scientific interests comprise mathematical methods and software related to modelling and performance evaluation of wide area computer networks, especially the Internet. The methods include Markov chains, diffusion approximation and fluid flow approximation. They are used to study quality of service, traffic control mechanisms and related problems.

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Publications

2021

2. Szyguła, J., A. Domański, J. Domańska, T. Czachórski, J. Klamka, and D. Marek, "The IoT Gateway with Active Queue Management", International Journal of Applied Mathematics and Computer Science (AMCS), vol. 31, issue 1, 2021.
4. Atmaca, T., A. Kamli, G. Suila Kuaban, and T. Czachórski, "Performance Evaluation of the Packet Aggregation Mechanism of an N-GREEN Metro Network Node", Symposium on Modelling, Analysis, and Simulation of Computer and Telecommunication Systems MASCOTS 2020, 2021.  (1.1 MB)
5. Czachórski, T., E. Gelenbe, G. Suila Kuaban, and D. Marek, "Time-Dependent Performance of a Multi-Hop Software Defined Network", Applied Sciences, vol. 11, issue 2469, 03/2021.  (1.25 MB)

2020

6. Czachórski, T., E. Gelenbe, G. Suila Kuaban, and D. Marek, "Transient Behaviour of a Network Router", 43th International Conference on Telecommunications and Signal Processing, Milano, Italy, IEEE, 2020.  (712.6 KB)
7. Domański, A., J. Domańska, K. Filus, J. Szyguła, and T. Czachórski, "The self-similar markovian sources", Applied Sciences, vol. 10, issue 11, 2020.
8. Czachórski, T., E. Gelenbe, G. Kuaban, and D. Marek, "Time Dependent Diffusion Model for Security Driven Software Defined Networks", Second International Workshop on Stochastic Modeling and Applied Research of Technology (SMARTY 2020), CEUR Workshop Proceedings, vol. 2792, Petrozavodsk, Karelia, Russia, CEUR-WS.org, pp. 38-56, 12/2020.  (2.06 MB)
9. Atmaca, T., A. Kamli, G. Kuaban, and T. Czachórski, "Performance Evaluation of the Packet Aggregation Mechanism of an N-GREEN Metro Network Node", Modelling, Analysis, and Simulation of Computer and Telecommunication Systems, 28th International Symposium, MASCOTS 2020, Nice, France, November 17–19, 2020, Revised Selected Papers, Computer Communication Networks and Telecommunications, LNCS, vol. 12527, on-line, Springer International Publishing, 12/2020.
11. Czachórski, T., E. Gelenbe, and D. Marek, "Software Defined Network Dynamics via Diffusions", 28th International Symposium on Modelling, Analysis, and Simulation of Computer and Telecommunication Systems, MASCOTS 2020, revised delected papers, Computer Communication Networks and Telecommunications, LNCS, vol. 12527, on-line, Springer International Publishing, 12/2020.  (447.84 KB)
12. Szyguła, J., A. Domański, J. Domańska, T. Czachórski, D. Marek, and J. Klamka, " AQM mechanism with neuron tuning parameters", 12th Asian Conference on Intelligent Information and Database Systems, Phuket, Thailand, 23-26 March 2020.
13. Czachórski, T., E. Gelenbe, G. Suila Kuaban, and D. Marek, "Time Dependent Diffusion Model for Security Driven Software Defined Networks", The Second International Workshop on Stochastic Modeling and Applied Research of Technology (SMARTY 2020), vol. 2792, pp. pp. 38-56, 2020.  (2.29 MB)

2019

14. Czachórski, T., G. Suila Kuaban, and T. Nycz, "Multichannel Diffusion Approximation Models for the Evaluation of Multichannel Communication Networks", Distributed Computer and Communication Networks - 22nd International Conference, DCCN 2019, Moscow, Russia, September 23-27, 2019, Revised Selected Papers: Springer, 2019.
16. Fiuk, M., and T. Czachórski, "A Queueing Model and Performance Analysis of UPnP/HTTP client server interactions in Networked Control Systems", Computer Networks 2019, Springer, no. 1039: Springer, Communications in Computer and Information Science, pp. 366-386, 2019.
18. Nowak, M., S. Nowak, J. Domańska, and T. Czachórski, "Cognitive Packet Networks for the Secure Internet of Things", Global IoT Summit (GIoTS), Aarhus, Denmark, 2019.
20. Czachórski, T., and K. Grochla, "Diffusion Approximation Models for Cloud Computations with Task Migrations", 2019 IEEE International Conference on Fog Computing (ICFC): IEEE, 2019.

2018

21. Czachórski, T., "Queueing Models for Performance Evaluation of Computer Networks - Transient State Analysis, invited talk ", 2018 International Conference on Sensor Networks and Signal Processing (SNSP 2018), Xi'an, China, Xi'an University of Science Technology, China, 11/2018.
23. Czachórski, T., "Queueing models of traffic control and performance evaluation in large Internet topologies, key-note talk", XIII International Scientific and Technical Conference, Computer Science and Information Technologies, Lviv Polytechnic National University, Lviv Polytechnic National University, 09/2018.
25. Czachórski, T., "Metoda sterowania natężeniem ruchu w Internecie, referat zaproszony", XXI Krajowa Konferencja Automatyzacji Procesów Dyskretnych, Zakopane, Politechnika Śląska, 09/2018.

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