Prof. Tadeusz Czachórski

Email: 

Orcid ID: 

0000-0001-7158-0258

Position: 

full professor
Research groups

Information: 

Tadeusz Czachórski received M.Sc., Ph.D., D.Sc. degrees in informatics respectively in 1972, 1979, 1988, and professor title in 1999. Since 1972 a researcher  at the Institute of Theoretical and Applied Informatics of Polish Academy of Sciences, IITiS PAN, Gliwice, 2003-2023 the director of this institute, currently president of its scientific counsel. At the same time 1992 – 2019  lecturer and professor at Silesian University of Technology.

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 some of them. Hu publish with french partners around 100 articles and coordinated 10 polish-french projects PAN-CNRS.

1990 - 2007 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.

2015-2023 Chair of IFIP Technical Committee TC5 "Information Technology and Applications" and member of IFIP General Assembly, currently a national representative at TC5. 

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, security, energy storing and related problems.

Horizontal Tabs

Publications
Biblio RSS

2005

151. Skabek, K., and R. Winiarczyk, Wysokowydajne sieci komputerowe Nowe Technologie: WKiŁ, 2005.
152. Szcześniak, I., and T. Czachórski, "OPUS Software for Performance Evaluation of Optical Packet-Switched Networks", XII Konferencja Sieci Komputerowe, 2005.
153. Szcześniak, I., and T. Czachórski, Wysokowydajne sieci komputerowe. Nowe Technologie, Warszawa, Wydawnictwa Komunikacji i Łączności, 2005.
154. Szcześniak, I., J. M. Fourneau, and T. Czachórski, "Preliminary results of packet loss analysis in optical packet-switched networks with limited deflection routing", Proc. of SAINT 2005 Workshops, 31 January - 4 February 2005, Trento, Italy, pp. 296–299, 2005.
155. Węgrzyn, S., Technologie molekularne realizowane przez molekularne systemy informatyczne: Wydawnictwa Komunikacji i Łączności, 2005.
156. Znamirowski, L., Wysokowydajne sieci komputerowe. Nowe technologie, Warszawa, Wydawnictwa Komunikacji i Łączności, 2005.

2004

157. Bylina, B., J. Bylina, T. Czachórski, and J. Domańska, Współczesne problemy sieci komputerowych Nowe technologie, Warszawa, WNT, 2004.
158. Bylina, B., J. Bylina, J. Domańska, and T. Czachórski, "The use of vectorized and parallelized solutions to Markovian models in performance evaluation of communication networks: a case of leaky buckets with tokens", Archiwum Informatyki Teoretycznej i Stosowanej, vol. 16, no. 3, pp. 153–170, 2004.
159. Czachórski, T., and J. Domańska, "Markovian models for long-range dependent traffic, new results", Proc. of First Workshop on New Trends in Modelling Quantitave Methods and Measurements, in Modelling Quantitave Methods and Measurements, Zakopane, 27-29 June 2004, pp. 213–228, 2004.
160. Czachórski, T., A. Domański, and J. Domańska, Internet w spoleczenstwie informatycznym, Warszawa, WNT, 2004.
161. Czachórski, T., A. Domański, and J. Domańska, Współczesne problemy sieci komputerowych Nowe technologie, Warszawa, WNT, 2004.
162. Czachórski, T., and F. Pekergin, "Diffusion Approximation as a modelling tool in congestion control and performance evaluation, tutorial", Proc. of HET-NETs '04, Performance Modelling and Evaluation of Heterogenous Networks, 2004.
163. Domańska, J., A. Domański, and T. Czachórski, "Self-similarity of network traffic and the performances of QoS mechanisms", Archiwum Informatyki Teoretycznej i Stosowanej, vol. 16, no. 3, pp. 337–349, 2004.
164. Grochla, K., T. Czachórski, P. Głomb, and A. Sochan, Internet w społeczeństwie informacyjnym - Podstawowe problemy Internetu, Warszawa, Wydawnictwa Naukowo-Techniczne, 2004.
165. Nowak, S., Nanotechnologi i nanoinformatyka, Rozdział w książce Współczesne problemy sieci komputerowych: Wydawnictwa Naukowo Technicze, 2004.
166. Znamirowski, L., Współczesne problemy sieci komputerowych. Nowe technologie, Warszawa, WNT, 2004.

2003

167. Czachórski, T., Internet w społeczeństwie informatycznym, Dąbrowa Górnicza, Wyższa Szkoła Biznesu i Organizacji, 2003.
168. Czachórski, T., "Analityczne modele kolejkowe w ocenie efektywności pracy systemów i sieci kolejkowych", Pro Dialog, vol. 16, pp. 90–111, 2003.
169. Czachórski, T., and F. Pekergin, "Diffusion approximation: modelling transient flows of multiclass queueing networks", Proc. of International Network Optimization Conference, INOC'03, Oct. 27-29, 2003 Evry, France, 2003.
170. Domańska, J., and T. Czachórski, "Wpływ samopodobnej natury ruchu na zachowanie mechanizmu cieknącego wiadra", Studia Informatica, vol. 24, no. 2A (53), pp. 199–212, 2003.
171. Domańska, J., and T. Czachórski, "Model formowania pakietów w węźle brzegowym sieci optycznej", Studia Informatica, vol. 24, no. 2A (53), pp. 51–61, 2003.
172. Domańska, J., I. Kotuliak, T. Atmaca, and T. Czachórski, "Optical packet filling", Proc. 10th Polish Teletraffic Symposium, Kraków 18-19 Sept. 2003, pp. 419–429, 2003.
173. Węgrzyn, S., J. Klamka, and J. Miszczak, Kwantowe systemy informatyki, 2: Wydawnictwo Pracowni Komputerowej Jacka Skalmierskiego, 2003.

2002

174. Badrah, A., T. Czachórski, J. Domańska, J. M. Fourneau, and F. Quessette, "Performance evaluation of multistage interconnection networks with blocking - discrete and continuous time Markov model", Archiwum Informatyki Teoretycznej i Stosowanej, vol. 14, no. 2, 2002.
175. Czachórski, T., and J. Domańska, "Wpływ samopodobnej natury ruchu na długości kolejek w przełącznikach sieciowych", Studia Informatica, vol. 23, no. 2A (48), pp. 201–212, 2002.

Pages

Historia zmian

Data aktualizacji: 08/04/2025 - 14:14; autor zmian: Tadeusz Czachórski (tadek@iitis.pl)

Tadeusz Czachórski received M.Sc., Ph.D., D.Sc. degrees in informatics respectively in 1972, 1979, 1988, and professor title in 1999. Since 1972 a researcher  at the Institute of Theoretical and Applied Informatics of Polish Academy of Sciences, IITiS PAN, Gliwice, 2003-2023 the director of this institute, currently president of its scientific counsel. At the same time 1992 – 2019  lecturer and professor at Silesian University of Technology.

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 some of them. Hu publish with french partners around 100 articles and coordinated 10 polish-french projects PAN-CNRS.

1990 - 2007 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.

2015-2023 Chair of IFIP Technical Committee TC5 "Information Technology and Applications" and member of IFIP General Assembly, currently a national representative at TC5. 

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, security, energy storing and related problems.