Email: krzysztof.walkowiak@pwr.edu.pl

Jednostka: Wydział Informatyki i Telekomunikacji » Katedra Systemów i Sieci Komputerowych

ul. Z. Janiszewskiego 11/17, Wrocław
bud. C-3, pok. 108                          
tel. 71 320 3361

Konsultacje: poniedziałek 15:00-17:00

Zainteresowania naukowe

- Application-aware networking
- Intent-based networking
- Zastosowanie metod ML w sieciach teleinfomatycznych
- Kognitwne sieci optyczne
- Optymalizacja sieci komputerowych
- Elastyczne sieci optyczne
- Sieci SDM
- Przeżywalne sieci komputerowe
- Systemy przetwarzania rozproszonego
- Sieci zorientowane na treść (multicasting, anycasting, P2P)
- Inteligentne techniki obliczeniowe (algorytmy genetyczne, tabu search, algorytmy mrówkowe)

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Najważniejsze publikacje z ostatnich lat

2023

• Knapińska A., Goścień R., Lechowicz P., Walkowiak K., Link load prediction in an optical network with restoration mechanisms, Journal of Optical Communications and Networking 15 (5), B42-B52, 2023.
• Mroziński D., Klinkowski M., Walkowiak K., Cost-Aware DU Placement and Flow Routing in 5G Packet xHaul Networks, IEEE Access 11, 12710-12726, 2023.

2022

• Wojciechowski S., Goścień R., Ksieniewicz P., Walkowiak K., Hybrid Regression Model for Link Dimensioning in Spectrally-Spatially Flexible Optical Networks, IEEE Access, Vol. 10, pp. 53810 – 53821, 2022.
• Knapińska A., Lechowicz P., Węgier W., Walkowiak K., Long-term prediction of multiple types of time-varying network traffic using chunk-based ensemble learning, Applied Soft Computing, Vol. 130, 2022.
• Komarnicki M., Przewoźniczek M., Kwaśnicka H., Walkowiak K., Incremental Recursive Ranking Grouping for Large Scale Global Optimization, IEEE Transactions on Evolutionary Computation, 2022.

2021

• Barbosa F., De Sousa A., Agra A., Walkowiak K., Goścień R., RMSA algorithms resilient to multiple node failures in dynamic EONs, Optical Switching and Networking, Vol. 42, 2021.
• Szostak D. Włodarczyk A., Walkowiak K. Machine learning classification and regression approaches for optical network traffic prediction, Electronics, Vol. 10, No. 13, 2021.

2020

• Klinkowski M., Ksieniewicz P., Jaworski M., Zalewski G., Walkowiak K., Machine Learning Assisted Optimization of Dynamic Crosstalk-Aware Spectrally-Spatially Flexible Optical Networks, IEEE Journal of Lightwave Technology, Vol. 38, No. 7, 2020, s. 1625-1635.
• Lechowicz P., Tornatore M., Włodarczyk A., Walkowiak K., Fragmentation Metrics and Fragmentation-Aware Algorithm for Spectrally/Spatially-Flexible Optical Networks, Journal of Optical Communications and Networking, Vol. 12 , No. 5, 2020, s. 133-145.
• Walkowiak K., Klinkowski M., Włodarczyk A., Kasprzak A., Predeployment of Transponders for Dynamic Lightpath Provisioning in Translucent Spectrally–Spatially Flexible Optical Networks, Applied Sciences, Vol. 10, No. 8, 2020.
• Przewoźniczek M., Walkowiak K., Sen A., Lechowicz P., Komarnicki M., Splitting the fitness and penalty factor for temporal diversity increase in practical problem solving, Expert Systems with Applications, Vol. 145, 2020.
• Kmiecik W., Walkowiak K., A performance study of dynamic routing algorithm for SDM translucent optical networks with assistive storage, Optical Switching and Networking, Vol. 38, 2020.
• Aibin M., Walkowiak K., Monte Carlo Tree Search with Last‑Good‑Reply Policy for Cognitive Optimization of Cloud‑Ready Optical Networks, Journal of Network and Systems Management, Vol. 28, s.1722–1744, 2020.

2019

• Klinowski M., Walkowiak K., An Efficient Optimization Framework for Solving RSSA Problems in Spectrally and Spatially Flexible Optical Networks, IEEE/ACM Transactions on Networking, Vol. 27, No. 4, 2019, pp. 1474-1486.
• Przewoźniczek M., Walkowiak K., Sen A., Lechowicz P., Komarnicki M., The transformation of the k-Shortest Steiner trees search problem into binary dynamic problem for effective evolutionary methods application, Information Sciences, Vol. 479, 2019, pp. 1-19

 2018

• Walkowiak K., Lechowicz P., Klinkowski M., Dynamic Routing in Spectrally-Spatially Flexible Optical Networks with Back-to-Back Regeneration, IEEE/OSA Journal of Optical Communications and Networking, Vol. 10, No. 5, 2018, pp. 523-534
• Klinkowski M., Lechowicz P., Walkowiak K., Survey of resource allocation schemes and algorithms in spectrally-spatially flexible optical networking, Optical Switching and Networking, Vol. 27, No. 1, pp. 58-78, 2018.

Publikacje w bazie DONA

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Wybrane publikacje
1	Artykuł 2023 Aleksandra M Knapińska, Róża Goścień, Piotr Lechowicz, Krzysztof Walkowiak, Link load prediction in an optical network with restoration mechanisms. Journal of Optical Communications and Networking. 2023, vol. 15, nr 5, s. B42-B52. ISSN: 1943-0620; 1943-0639 Zasoby:DOIURLSFX
2	Artykuł 2023 Damian Mroziński, Mirosław Klinkowski, Krzysztof Walkowiak, Cost-aware DU placement and flow routing in 5G packet xHaul networks. IEEE Access. 2023, vol. 11, s. 12710-12726. ISSN: 2169-3536 Zasoby:DOIURLSFX
3	Referat konferencyjny 2022 Aleksandra M Knapińska, Piotr Lechowicz, Krzysztof Walkowiak, Prediction of multiple types of traffic with a novel evaluation metric related to bandwidth blocking. W: 2022 IEEE Global Communications Conference (GLOBECOM) : proceedings, Rio de Janeiro, Brazil, 4-8 December 2022. Danvers, MA : IEEE, cop. 2022. s. 2927-2932. ISBN: 978-1-6654-3540-6 Zasoby:DOIURL
4	Referat konferencyjny 2022 Agnieszka Ganowicz, Bartosz Starosta, Aleksandra M Knapińska, Krzysztof Walkowiak, Short-term network traffic prediction with multilayer perceptron. W: Sri Lanka Association for Artificial Intelligence 18th Annual Sessions : 6th SLAAI International Conference on Artificial Intelligence (SLAAI-ICAI-2022), 01st & 02nd December 2022 : via Zoom. [Danvers, MA] : IEEE, cop. 2022. s. 1-6. ISBN: 978-1-6654-7608-9; 978-1-6654-7607-2 Zasoby:DOIURL
5	Artykuł 2022 Marcin M Komarnicki, Michał Przewoźniczek, Halina Kwaśnicka, Krzysztof Walkowiak, Incremental recursive ranking grouping for large scale global optimization. IEEE Transactions on Evolutionary Computation. 2022, s. 1-15. ISSN: 1089-778X; 1941-0026 Zasoby:DOIURL
6	Referat konferencyjny 2022 Dominik Dulas, Katarzyna G Maraj-Zygmąt, Krzysztof Walkowiak, Method of 5G TDD Midhaul Multiplexing Gain Estimation based on System-Level Traffic Measurements. W: 30th International Conference on Software, Telecommunications and Computer Networks, SoftCOM 2022, September 22-24, 2022, Split, Croatia / eds. Dinko Begušić [i in.]. Croatia : FESB. University of Split ; IEEE, cop. 2022. s. 1-5. ISBN: 978-1-6654-7018-6; 978-953-290-117-7 Zasoby:DOIURL
7	Artykuł 2022 Aleksandra M Knapińska, Piotr Lechowicz, Weronika T Węgier, Krzysztof Walkowiak, Long-term prediction of multiple types of time-varying network traffic using chunk-based ensemble learning. Applied Soft Computing. 2022, vol. 130, art. 109694, s. 1-19. ISSN: 1568-4946; 1872-9681 Zasoby:DOIURLSFX
8	Artykuł 2022 Dominik Piątkowski, Krzysztof Walkowiak, TinyML-based concept system used to analyze whether the face mask is worn properly in battery-operated conditions. Applied Sciences. 2022, vol. 12, nr 1, art. 484, s. 1-24. ISSN: 2076-3417 Zasoby:DOIURLSFX
9	Referat konferencyjny 2022 Piotr Lechowicz, Aleksandra M Knapińska, Krzysztof Walkowiak, Delayed squeezed dedicated path protection in spectrally-spatially flexible optical networks. W: 2022 12th International Workshop on Resilient Networks Design and Modeling (RNDM), September 19-21, 2022, Compiegne, France : proceedings / eds. Dritan Nace, Jacek Rak, Artur Tomaszewski. Danvers, MA : IEEE, cop. 2022. s. 1-7. ISBN: 978-1-6654-8677-4 Zasoby:DOIURL
10	Referat konferencyjny 2022 Aleksandra M Knapińska, Katarzyna Półtorak, Dominika Poręba, Jan Miszczyk, Mateusz Daniluk, Krzysztof Walkowiak, On feature selection in short-term prediction of backbone optical network traffic. W: 2022 International Conference on Optical Network Design and Modeling (ONDM), 16-19 May 2022, Warsaw, Poland. [Danvers, MA : IEEE] ; IFIP, cop. 2022. s. 1-6. ISBN: 978-3-903176-44-7 Zasoby:DOIURL

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