About


I am an Associate Professor at the Department of Artificial Intelligence, Wroclaw University of Science and Technology. I received MSc in Computer Science from the Wroclaw University of Technology, Poland in 2008 and PhD in late 2012. In 2012, I also received an MSc in Computer Science from Blekinge Institute of Technology, Sweden. In 2020, I received a Habilitation (D.Sc.) in Information and Communication Technology.
I was a Visiting Scholar at Stanford University in 2013 and a Visiting Professor at the University of Technology Sydney in 2018 and 2019. I have authored over 100 scholarly and research articles on a variety of areas related to complex networks and computational network science, focusing on the extraction and dynamics of communities within social networks, spreading processes in complex networks and the analysis of multilayer networks. In 2015 I received three years scholarship for the best young scientists awarded by the Polish Ministry of Science and Higher Education. You can meet me at most of the top conferences on complex networks and social informatics, e.g., NetSci, NetSciX, IC2S2, ASONAM, SocInfo etc.
In 2020 I was selected as Senator to Wrocław University of Science and Technology Senate. Since 2021 I co-lead the Netowork Science Lab at Wrocław Tech.

Network Science Lab

My PhD thesis topic was A Method for Group Extraction and Analysis in Multilayer Social Networks , so as I have already mentioned one of my research area is communities within complex social networks, their evolution, analysis and prediction of their future behaviour.

Main research areas

Complex Networks
Social Network Analysis
Dynamic of Social Networks
Spreading Proceses in Complex Networks, Especially Multilayer Netwoks
Multilayer Social Networks
Group Extraction in Multilayer Social Networks
Group Analysis in Multilayer Social Networks
Group Dynamic in Multilayer Social Networks

Publications

Web of Science AAB-8460-2020

Piotr Bródka on ResearchGate

Books and Book Chapters
  1. Saganowski S., Bródka P., Kazienko P.: Community Evolution. Encyclopedia of Social Network Analysis and Mining pp 1-14 Springer New York 2017, doi 10.1007/978-1-4614-7163-9_223-1
    arXiv.org:1605.00069
  2. Bródka P., Kazienko P.: Multi-layered social networks. Encyclopedia of Social Network Analysis and Mining. Volume 2. Springer, 2014, pp. 998-1013
    arXiv.org:1212.2425v1
  3. Bródka P., Saganowski S., Kazienko P.: Community Evolution. Encyclopedia of Social Network Analysis and Mining. Volume 1. Springer, 2014, pp. 220-232.
    arXiv.org:1605.00069
  4. Bródka P. A Method for Group Extraction and Analysis in Multilayer Social Networks Ph.D. disertation, Wrocław, Poland, 2012
    arXiv.org:1302.1369
  5. Bródka P. Key Users in Social Network. How to find them? LAP Lambert Academic Publishing, 2012, ISBN-13: 978-3-659-19597-6, ISBN-10: 3659195979
    arXiv.org:1302.1369
  6. Filipowski T., Bródka P., Kazienko P.: EcoRide - the social-based system for car traffic optimization. Chapter in Green Technologies and Business Practices: An IT Approach. IGI-Global,August 2012, DOI: 10.4018/978-1-4666-1972-2
  7. Kazienko P., Bródka P.: Data Warehouses, Published by PRINTPAP Łódz, Wrocław 2011, ISBN 978-83-62098-97-2

Articles in the International Journals
  1. Kraiński, Ł., Czuba, M., Bródka, P., Prałat, P., Kamiński, B., & Théberge, F. (2026). Multilayer Artificial Benchmark for Community Detection (mABCD). Expert Systems with Applications, 130920.
    PDF mABCD code in Julia and Python ports at GitHub
  2. Czuba, M., Jia, M., Bródka, P., & Musial, K. (2025). Applicability of the Minimal Dominating Set for Influence Maximisation in Multilayer Networks, Journal of Complex Networks, https://doi.org/10.1093/comnet/cnaf036
    PDF Code and data at GitHub
  3. Czuba, M., & Bródka, P. (2025). Rank-refining seed selection methods for budget constrained influence maximisation in multilayer networks under linear threshold model. Social Network Analysis and Mining, 15(1), 46, https://doi.org/10.1007/s13278-025-01454-7
    PDF Code and data at GitHub
  4. Paradowski, M.B., Whitby, N., Czuba, M. and Bródka, P. (2024). Peer Interaction Dynamics and Second Language Learning Trajectories During Study Abroad: A Longitudinal Investigation Using Dynamic Computational Social Network Analysis. Language Learning. https://doi.org/10.1111/lang.12681
    PDF Repository with code and data
  5. Stolarski M, Piróg A, Bródka P. (2024). Identifying Key Nodes for the Influence Spread Using a Machine Learning Approach. Entropy, 2024; 26(11):955. https://doi.org/10.3390/e26110955
    PDF Code at GitHub
  6. Czuba, M., Nurek, M., Serwata, D., Qui, Y., Jia, M. Musiał, K., Michalski, R., Bródka, P. (2024). Network Diffusion – Framework to Simulate Spreading Processes in Complex Networks. Big Data Mining and Analytics, 7(1), ; https://doi.org/10.26599/BDMA.2024.9020010
    PDF
  7. Sadaf, A., Mathieson, L., Bródka, P., Musiał, K. (2024). A bridge between influence models and control methods. Applied Network Scienc 9, 38 https://doi.org/10.1007/s41109-024-00647-x
    PDF
  8. Wątroba, P., Bródka, P., (2023). Influence of Information Blocking on the Spread of Virus in Multilayer Networks. Entropy 2023, 25(2), 231; https://doi.org/10.3390/e25020231
    PDF
  9. Bródka, P. Jankowski, J., & Michalski, R. (2021). Sequential seeding in multilayer networks. Chaos 31, 033130; https://doi.org/10.1063/5.0023427
    PDF Code and data at GitHub and Code Ocean Presentation
  10. Michalski, R., Jankowski, J. & Bródka, P. (2020). Effective Influence Spreading in Temporal Networks with Sequential Seeding. IEEE Access, vol. 8, pp. 151208-151218, doi: 10.1109/ACCESS.2020.3016913.
    PDF Code and data at Code Ocean Presentation
  11. Bródka, P., Musial, K., & Jankowski, J. (2020). Interacting spreading processes in multilayer networks. IEEE Access, vol. 8, pp. 10316-10341, doi:10.1109/ACCESS.2020.2965547
    PDF
  12. Belfin, R. V., Brodka, P., Radhakrishnan, B. L., & Rejula, V. (2020). COVID-19 peak estimation and effect of nationwide lockdown in India. medRxiv, medRxiv 2020.05.09.20095919; doi: https://doi.org/10.1101/2020.05.09.20095919
    PDF
  13. Saganowski S., Bródka P., Koziarski M., Kazienko P. (2019) . Analysis of group evolution prediction in complex networks. PloS ONE, 14(10): e0224194
    PDF Data at Harvard Dataverse
  14. Jankowski, J., Waniek, M., Alshamsi, A., Bródka, P., Michalski, R. (2018). Strategic distribution of seeds to support diffusion in complex networks. PloS ONE, 13(10), e0205130
    PDF Presentation
  15. Jankowski J., Szymanski B., Kazienko P., Michalski R., Bródka P. (2018) Probing Limits of Information Spread with Sequential Seeding Scientific Reports, 8(1), 13996, DOI: 10.1038/s41598-018-32081-2
    PDF Presentation
  16. Bródka, P., Chmiel, A., Magnani, M., Ragozini, G. (2018). Quantifying layer similarity in multiplex networks: a systematic study. Royal Society Open Science 2018 5 171747, 10.1098/rsos.171747.
    PDF Code at CRAN
  17. Belfin R.V., Kanaga E F.M., Bródka P. (2018). Overlapping community detection using superior seed set selection in social networks. Computers & Electrical Engineering, 10.1016/j.compeleceng.2018.03.012
    PDF
  18. Erlandsson F., Bródka P., Boldt M., Johnson H. (2017). Do we really need to catch them all? A new User-guided Social Media Crawling method. Entropy, 19(12), 686.
    PDF Data at Harvard Dataverse
  19. Jankowski, J., Michalski, R., Bródka, P. (2017). A multilayer network dataset of interaction and influence spreading in a virtual world. Scientific Data, 4, Article number: 170144
    PDF Data at Harvard Dataverse
  20. Ethier, JF, Curcin, V., McGilchrist, M., Lim Choi Keung, S., Zhao, L., Andreasson, A., Bródka, P., Michalski, R., Arvanitis T., Mastellos, N., Burgun, A., Delaney B. (2017). eSource for clinical trials: Implementation and evaluation of a standards-based approach in a real world trial, International Journal of Medical Informatics, Volume 106, pp. 17-24, Elsevier
    PDF
  21. Jankowski J., Bródka P., Kazienko P., Szymanski B., Michalski R., Kajdanowicz T. (2017) Balancing Speed and Coverage by Sequential Seeding in Complex Networks Scientific Reports, 7(1), 891, DOI: 10.1038/s41598-017-00937-8
    PDF Presentation
  22. Jankowski J., Bródka P., Humari J. (2016). A Picture is Worth a Thousand Words: An Empirical Study on the Influence of Content Visibility on Diffusion Processes within a Virtual World. Behaviour & Information Technology, 35(11), 926-945.
    PDF
  23. Jankowski, J., Saganowski, S., Bródka, P. (2016). Evaluation of TRANSFoRm mobile eHealth solution for remote patient monitoring during clinical trials. Mobile Information Systems, 2016, Article ID 1029368
    PDF
  24. Erlandsson F., Bródka P., Borg A., Johnson H. (2016). Finding Influential Users in Social Media Using Association Rule Learning. Entropy Special Issue "Machine Learning and Entropy: Discover Unknown Unknowns in Complex Data Sets" 18(5), 164
    PDF
  25. Mastellos N., Bliźniuk G., Czopnik D., McGilchrist M., Misiaszek A., Bródka P., Curcin V., Car J., Delaney B., Andreasson A. (2016). Feasibility and acceptability of TRANSFoRm to improve clinical trial recruitment in primary care. Family Practice 33 (2): 186-191.doi: 10.1093/fampra/cmv102
    PDF
  26. Saganowski S., Bródka P., Misiaszek A., Fraczkowski K. (2015). Mobile eHealth solution (ePRO). In Journal of clinical bioinformatics (Vol. 5, No. 1, p. S14). BioMed Central.
    PDF
  27. Saganowski S., Gliwa B., Bródka P., Zygmunt A., Kazienko P., Koźlak J. (2015). Predicting Community Evolution in Social Networks. Entropy, 17(5), 3053-3096.
    PDF
  28. Różewski P., Jankowski J., Bródka P., Michalski R. (2015). Knowledge workers’ collaborative learning behavior modeling in an organizational social network. Computers in Human Behavior, 51, 1248-1260.
    arXiv:1505.03055
  29. Jankowski J., Michalski R., Bródka P., Kazienko P., Utz S. (2015). Knowledge Acquisition from Social Platforms Based on Network Distributions Fitting. Computers in Human Behavior, 51, 685-693.
    arXiv:1505.03049
  30. Musial K., Bródka P., Kazienko P., Gaworecki J. (2014). Extraction of Multi-layered Social Networks from Activity Data.The Scientific World Journal 2014, Article ID 359868, 13 pages.
    PDF
  31. Michalski R., Kajdanowicz T., Bródka P., Kazienko P. (2014). Seed Selection for Spread of Influnece in Social Networks: Temporal vs. Static Approach. New Generation Computing, 32(3-4), 213-235.
    arXiv.org:1405.0538
  32. Bródka P., Saganowski S., Kazienko P. (2013). GED: The Method for Group Evolution Discovery in Social Networks Social Network Analysis and Mining, 3(1), 1-14.
    arXiv.org:1207.4297 Code at GitHub
  33. Saganowski S., Bródka P., Kazienko P. (2012). Influence of the User Importance Measure on the Group Evolution Discovery. Foundations of Computing and Decision Sciences, 37(4), 293-303.
    arXiv.org:1301.1534
  34. Bródka P., Kazienko P., Musiał K., Skibicki K. (2012). Analysis of Neighbourhoods in Multi-layered Dynamic Social Networks.International Journal of Computational Intelligence Systems, 5(3), 582-596.
    arXiv.org:1207.4293
  35. Zygmunt A., Bródka P., Kazienko P., Koźlak J. (2012). Key Person Analysis in Social Communities within Blogosphere. Journal of Universal Computer Science, 18(4), 577-597.
    JUCS18(4)
  36. Filipowski T., Kazienko P., Bródka P., Kajdanowicz T. (2012). Web-based knowledge exchange through social links in the workplace. Behaviour and Information Technology 31(8), 779-790.
  37. Kukla G., Kazienko P., Bródka P., Filipowski T. (2011). SocLaKE - Social Latent Knowledge Explorator, The Computer Journal, 55(3), 258-276.
    Reprint
  38. Palus S., Bródka P., Kazienko P. (2011). Evaluation of Organization Structure based on Email Interactions, International Journal of Knowledge Society Research, Vol. 2, No. 1, 2011, pp. 1-13.
    Reprint
  39. Kazienko P., Ruta D., Bródka P. (2009). The Impact of Customer Churn on Social Value Dynamics, International Journal of Virtual Communities and Social Networking (IJVCSN), 1(3), 62-74.
    Reprint

International Conferences

    2025

  1. Czuba, M., Stolarski, M., Piróg, A., Bielak, P., & Bródka, P. (2025). Identifying Super Spreaders in Multilayer Networks. ECAI2025 - 28th European Conference on Artificial Intelligence; Frontiers in Artificial Intelligence and Applications, Volume 413: ECAI 2025, pages 2195 - 2202, https://doi:10.3233/FAIA251060
    PDF Code at GitHub
  2. Bródka, P., Czuba, M., Kamiński, B., Kraiński, Ł., Prałat, P., & Théberge, F. (2025). The Multilayer Artificial Benchmark for Community Detection (mABCD). International Workshop on Modelling and Mining Networks (pp. 172-188). Springer, Cham, https://doi.org/10.1007/978-3-031-92898-7_12
    PDF Code at GitHub

    3. 2024

  3. Paradowski, M. B., Bródka, P., Czuba, M., & Whitby, N. (2024). Dynamic computational social network analysis of language learner interactions: Novel insights for study-abroad second language acquisition. Society for Computation in Linguistics 7(1), 331–332. doi: https://doi.org/10.7275/scil.2218
    PDF

    4. 2023

  4. Stępień, S., Jankowski, J., Bródka, P., & Michalski, R. (2023). The Role of Conformity in Opinion Dynamics Modelling with Multiple Social Circles. In International Conference on Computational Science (pp. 33-47). Cham: Springer Nature Switzerland.
    PDF

    5. 2022

  5. Sadaf, A., Mathieson, L., Bródka, P., & Musial, K. (2022). Maximising Influence Spread in Complex Networks by Utilising Community-based Driver Nodes as Seeds. SIMBig 2022 International Conference on Information Management and Big Data
    PDF
  6. Czuba, M., Bródka, P. (2022). Network Diffusion: A Package to Simulate Spreading of Multiple Interacting Processes in Complex Networks. IEEE DSAA 2022 The 9th IEEE International Conference on Data Science and Advanced Analytics.
    PDF Main repository with code Runnable Code Ocean capsule Presentation
  7. Zioło, M., Bródka, P., Spoz, A., & Jankowski, J. (2022). Impact of external influence on green behavior spreading in multilayer network. IEEE DSAA 2022The 9th IEEE International Conference on Data Science and Advanced Analytics.
    PDF Presentation

    8. 2018

  8. Belfin, R. V., Kanaga, E. G. M., Bródka, P. (2018, December). Regional clustering of Indian hospitals for better health. In 2018 International Conference on Circuits and Systems in Digital Enterprise Technology (ICCSDET) (pp. 1-5). IEEE.

    9. 2017

  9. Erlandsson F., Bródka P., Borg A.: Seed selection for information cascade in multilayer network The 6th International Conference on Complex Networks and Their Applications November 29 - December 01 2017 Lyon, France
    PDF
  10. Jankowski, J., Bródka, P., Michalski, R., Kazienko, P.: Seeds Buffering for Information Spreading Processes. SocInfo 2017, 9th International Conference on Social Informatics, Lecture Notes in Computer Science LNCS, vol. 10539, pp. 628-641, Springer, Berlin Heidelberg (2017)
    PDF
  11. Jankowski, J., Michalski, R., Bródka, P., Karczmarczyk, A. Increasing Coverage of Information Diffusion Processes by Reducing the Number of Initial Seeds. 2017 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, Sydney, Australia, 31 July - 03 August, 2017
    PDF
  12. Jankowski, J., Bródka, P., Kazienko, P., Szymański, B., Kajdanowicz, T., Michalski, R. Sequential Seeding in Complex Networks - Trading Speed for Coverage. Poster at NetSci-X 2017, The 2017 International School and Conference on Network Science (2017)

    13. 2016

  13. Erlandsson F., Bródka P., Borg A., Johnson H.: Finding Influential Users in Social Media Using Rule Learning Poster at Second International Conference on Computational Social Science IC2S2, Northwestern University, June 2016
  14. Saganowski S., Misiaszek A., Bródka P., Andreasson A., Curcin V., Delaney B., Frączkowski K.: TRANSFoRm eHealth solution for quality of life monitoring AMIA 2016 Summit on Clinical Research Informatics, CRI 2016, March 21-24, 2016, 2016, San Francisco, CA, pp. 231-239
  15. Erlandsson F., Borg A., Johnson H., Bródka P.: Predicting User Participation in Social Media. Poster at NetSciX 2016 - International School and Conference on Network Science, January 11-13, 2016, Wroclaw, Poland, LNCS Advances in Network Science Volume 9564 pp 126-135

    16. 2015

  16. Jankowski J., Michalski R., Kazienko P., Bródka P., Utz S.: Adaptive Survey Design Using Structural Characteristics of the Social Networkg. SocInfo 2015 - The 7th International Conference on Social Informatics, Beijing, China, December 9-12, 2015, Proceedings (Vol. 9471, p. 153). Springer.
  17. Michalski R., Kajdanowicz T., Bródka P., Piotr Bródka, Przemysław Kazienko Kazienko P.: Spread of Influence in Temporal Networks. IC2S2 2015 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SOCIAL SCIENCE, June 8-11, 2015, Helsinki, Finland
  18. Bródka P., Kazienko P.: Group Extraction in Multi-layered Social Network. NetSci 2015 - International School and Conference on Network Science, June 1-5, 2015, Zaragoza, Spain
  19. Lim Choi Keung S.N, Zhao L., Curcin V, Ethier J-F., Burgun A., McGilchrist M., Bródka P., Tuligłowicz W., Andreasson A., Delaney B.C., Arvanitis T.N.TRANSFoRm: Implementing a Learning Healthcare System in Europe through Embedding Clinical Research into Clinical Practice, ICSS2014 - 48th Annual Hawaii International Conference on System Sciences, IEEE Computer Society Press
    PDF

    20. 2014

  20. Bródka P., Sobas M., Johnson H.: Profile Cloning Detection in Social Networks. The First European Network Intelligence Conference, September 29-30, 2014, Wroclaw, Poland, IEEE Computer Society, pp. 63-68
  21. Michalski, R., Jankowski J., Bródka P., Kazienko P.: The Same Network - Different Communities? The Multidimensional Study of Groups in the Cyberspace. SNAA 2014 - the 4th Workshop on Social Network Analysis in Applications at ASONAM 2014 - The 2014 IEEE/ACM International Conference on Advances in Social Network Analysis and Mining, Beijing, China, August 17-20, 2014, IEEE, 2014,
  22. Michalski, R., Kazienko P., Kajdanowicz T., Bródka P.: Data-driven Seed Selection for Spread of Influence in Temporal Social Networks. Workshop on Sociophysics at SigmaPhi 2014 - The International Conference on Statistical Physics 2014, Rhodes, Greece, July 7-11, 2014, Kaniadakis G., Scarfone A.M. (eds.), 2014, p. 75.
  23. Saganowski S., Gliwa B., Bródka P., Zygmunt A., Kazienko P., KozŸlak J.: Predicting Community Evolution in Social Networks, poster. NetSci 2014 - International School and Conference on Network Science
  24. Michalski R., Kajdanowicz T., Bródka P., Kazienko P.: Seed Selection in Social Networks - Temporal Approach Benefits. TnetSphys'14 - Temporal Networks, Human Dynamics and Social Physics Symposium at NetSci 2014 - International School and Conference on Network Science
  25. Frączkowski K., Bródka P., Misiaszek A., Saganowski S., Kazienko P.: The mobile system supporting health safety of patients in the TRANSFoRm project. Workshop: CRI Solution Day
  26. Brodka P, Kazienko P, Andreasson A, Fraczkowski K, Misiaszek A, Saganowski S, Zhao L, Curcin V, Arvanitis T, Delaney B, Michalski R.: Remote Patient Health Condition Monitoring for Clinical Research. 19th WONCA Europe Conference, Lisbon, 3 July 2014.
  27. Curcin V, Arvanitis T, Ethier J-F, Fraczkowski K, Kazienko P, Brodka P, Andreasson A, Blizniuk G, Lim Choi Keung S, Zhao L, Misiaszek A, McGilchrist M, Burgun A, Delaney B. Semantic Approach to Achieving Interoperability between Clinical Care and Clinical Research. 19th WONCA Europe Conference, Lisbon, 3 July 2014.
  28. Curcin V., Arvanitis T.N., Brodka P., Corrigan D., Delaney B.: TRANSFoRm digital infrastructure: The architecture for The Learning Healthcare System in Europe AMIA 2014 Clinical Research Informatics Summit Panel

    29. 2013

  29. Gliwa B., Bródka P., Zygmunt A., Saganowski S., Kazienko P., Koźlak J.: Different Approaches to Community Evolution Prediction in Blogosphere. SNAA 2013 at ASONAM 2013, IEEE Computer Society, 2013, pp. .
  30. Kazienko P., Kajdanowicz T., Michalski R., Bródka P.: From Data to Human Behaviour. SOCIETY 2013, IEEE Computer Society, 2013, pp. .
  31. Kajdanowicz T., Filipowski T, Kazienko P., Bródka P. Competence Region Modelling in Relational ClassificationACIIDS 2013, LNCS 7803, 2013, pp 236-244.
  32. Bródka P., Filipowski T., Kazienko P.: An Introduction to Community Detection in Multi-layered Social Network , WSKS 2011, CCIS 278, Springer, pp 185-190, 2012.
    arXiv.org:1209.6050
  33. Saganowski S., Bródka P., Kazienko P.: Influence of the Temporal Social Network Timeframe Type and Size on Tracking Group Evolution. Workshop on Temporal and Dynamic Networks: From Data to Models at NetSci 2013
  34. Michalski R., Jankowski J., Bródka P., Kazienko P.: How the Network Dynamics Influences the Diffusion of Innovations. Workshop on Temporal and Dynamic Networks: From Data to Models at NetSci 2013
  35. Bródka P., Kazienko P., Saganowski S., Michalski R.: Quantifying Multi-layered Complex Networks. Satellite Symposium on Multiple Network Modeling, Analysis and Mining at NetSci 2013

    36. 2012

  36. Bródka P., Kazienko P., Kołoszczyk B.: Predicting Group Evolution in the Social Network. SocInfo 2012, LNCS 7710, Springer, 2012, pp. 54–67.
    arXiv.org:1210.5161
  37. Michalski R., Bródka P., Kazienko P., Juszczyszyn K.: Quantifying Social Network Dynamics. CASoN 2012, IEEE Computer Society, 2012, pp. 69-74.
    arXiv.org:1303.5009
  38. Saganowski S., Bródka P., Kazienko P.: Influence of the Dynamic Social Network Timeframe Type and Size on the Group Evolution Discovery. ASONAM 2012, IEEE Computer Society, 2012, pp. 678-682.
    arXiv.org:1210.5167
  39. Gliwa B., Saganowski S., Zygmunt A., Bródka P., Kazienko P., Koźlak J.: Identification of GroupChanges in Blogosphere. ASONAM 2012, IEEE Computer Society, 2012, pp. 1233-1238.
    arXiv.org:1210.5171
  40. Bródka P., Saganowski S., Kazienko P.: Group Evolution Discovery in Social Networks. NetSci 2012

    41. 2011

  41. Bródka P., Saganowski S., Kazienko P.: Tracking Group Evolution in Social Networks. SocInfo 2011, Lecture Notes in Artificial Intelligence LNAI , Springer, 2011, pp. 316-319. Best Demo\Poster\Paper Award Fotografie 1, 2 i 3 z ceremoni wręczenia nagrody.
    arXiv.org:1210.5240
  42. Michalski R., Palus S., Kazienko P., Bródka P., Juszczyszyn K.: Modelling Social Network Evolution. SocInfo 2011, Lecture Notes in Artificial Intelligence LNAI , Springer, 2011, pp. 283-286
  43. Bródka P., Skibicki K., Kazienko P., Musiał K.: A Degree Centrality in Multi-layered Social Network. CASoN 2011, IEEE Computer Society, 2011, pp. 237-242
    arXiv.org:1210.5184
  44. Bródka P., Saganowski S., Kazienko P.: Group Evolution Discovery in Social Networks, ASONAM 2011, IEEE Computer Society, 2011, pp. 247-253
  45. Bródka P., Stawiak P., Kazienko P.: Shortest Path Discovery in the Multi-layered Social Network, ASONAM 2011, IEEE Computer Society, 2011, pp 497-501
    arXiv.org:1210.5180
  46. Zygmunt A., Bródka P., Kazienko P., Koźlak J.: Different Approaches to Groups and Key Person Identification in Blogosphere, SNAA 2011 at ASONAM 2011, IEEE Computer Society, 2011, pp. 593-598
  47. Kazienko P., Musial K., Kukla E., Kajdanowicz T., Bródka P.: Multidimensional Social Network: Model and Analysis, ICCCI 2011, Lecture Notes in Artificial Intelligence LNAI, Springer, 2011, pp. 378-387.
  48. Kazienko P., Kukla E., Musial K., Kajdanowicz T., Bródka P., Gaworecki J.: A Generic Model for Multidimensional Temporal Social Network, ICeND2011, CCIS 171, Springer, 2011, pp. 1-14
  49. Popowicz D., Bródka P., Kazienko P., Kozielski M.: Ask Your Friends for Help: A Collaborative Query Answering System, CDVE2011, Lecture Notes in Computer Science, Springer, 2011, pp. 110-113

    50. 2010

  50. Kukla G., Kazienko P., Bródka P., Filipowski T.: Recommendation Boosted Query Propagation in the Social Network, SocInfo 2010, Lecture Notes in Artificial Intelligence LNAI , Springer, 2010, pp. 113-124
  51. Kazienko P., Bródka P., Musial K., Gaworecki J.: Multi-layered Social Network Creation Based on Bibliographic Data , SocialCom2010, IEEE Computer Society Press, 2010, pp. 407-412
  52. Juszczyszyn K., Musiał A., Musiał K., Bródka P.: Utilizing Dynamic Molecular Modelling Technique for Predicting Changes in Complex Social Networks, 2010 IEEE/WIC/ACM, IEEE Computer Society Press, 2010, pp. 1-4
  53. Kazienko P., Bródka P., Musiał K.: Individual Neighbourhood Exploration in Complex Multi-layered Social Network, 2010 IEEE/WIC/ACM, IEEE Computer Society Press, 2010, pp. 5-8
  54. Bródka P., Musial K., Kazienko P.: A Method for Group Extraction in Complex Social Networks., WSKS 2010, CCIS 111, Springer, 2010, pp. 238-247.
  55. Palus S., Bródka P., Kazienko P.: How to Analyze Company Using Social Network?, WSKS 2010, CCIS 111, Springer, 2010, pp. 159-164.

    56. 2009

  56. Bródka P., Musiał K., Kazienko P.: Efficiency of Node Position Calculation in Social Networks, KES 2009, LNCS/LNAI, Springer, 2009, pp.455-463
  57. Bródka P., Musiał K., Kazienko P.: A Performance of Centrality Calculation in Social Networks, CASoN 2009, IEEE Computer Society, 2009, pp.24-31.
  58. Musiał K., Kazienko P., Bródka P.:User position measures in social networks SNA-KDD 2009
  59. Ruta D., Kazienko P., Bródka P.: Network-Aware Customer Value in Telecommunication Social Networks, ICAI 09, CSREA Press, pp. 261-267.
  60. Kazienko P., Bródka P., Ruta D.: The Influence of Customer Churn and Acquisition on Value Dynamics of Social Neighbourhoods, WSKS 2009, LNCS/LNAI, Springer, 2009, pp.491-500
  61. Juszczyszyn K., Musiał A., Musiał K., Bródka P.: Molecular Dynamics Modelling of the Temporal Changes in Complex Networks, CEC 09, IEEE Computer Society Press, 2009 pp. 553-559.

Polish National Conferences
  1. Bródka P., Kaim K.: Badanie logów serwera Politechniki Wrocławskiej metodami eksploracji danych, Oficyna Wydawnicza Politechniki Wrocłwskiej, V Konferencja naukowa studentółw Referaty Tom 1, str. 49-54.
  2. Bródka P.: Indeksowanie obiektółw wielowymiarowych, Oficyna Wydawnicza Politechniki Wrocławskiej, IV Konferencja naukowa studentów Referaty Tom 1, str. 79-84.

Research Activities

Editorial Boards and Special Issues
  1. Editorial board member of Scientific Data
  2. Editorial board member of PLOS ONE
  3. Editorial board member of Social Network Analysis and Mining
  4. Editorial board member of Program Electronic library and information systems
  5. Analysis and Applications of Complex Social Networks Entropy Special Issue Editor, 2021
  6. Analysis and Applications of Complex Social NetworksComplexity Special Issue Editor, Volume 2017
  7. Social Network Analysis in ApplicationsAI Communications Special Issue Editor, vol. 29, no. 1, pp. 55-56, 2016

Program Committee
  1. EXECUTIVE CHAIR of NetSciX 2016 - International School and Conference on Network Science, Wrocław, Poland, 11-13 January 2016
  2. SocialCom 2015 - The 8th IEEE International Conference on Social Computing and Networking, Chengdu, China, 19-21 December 2015
  3. MANEM'15 - First International workshop on Multiplex & Attributed Network Mining, Paris, 25 August 2015
  4. MISNC 2015 - The 2nd International Multidisciplinary Social Networks Conference, Dogo, Matsuyama City, Ehime, Japan, September 1-3, 2015
  5. SocInfo 2015 - The 7th International Conference on Social Informatics. Beijing, 9-12 December 2015.
  6. BigData 2015 - The Fifth ASE International Conference on Big Data, October 7-9, 2015, Kaohsiung, Taiwan
  7. Socialinformatics 2015 - The Fourth ASE International Conference on Social Informatics, October 7-9, 2015, Kaohsiung, Taiwan
  8. SOTICS 2015 - The Fifth International Conference on Social Media Technologies, Communication, and Informatics, November 15 - 20, 2015, Barcelona, Spain
  9. IEEE DSAA 2015 - 2015 IEEE International Conference on Data Science and Advanced Analytics, October 19-21, 2015, Paris, France
  10. Chair of ENIC 2015 - The Second European Network Intelligence Conference, September 21-22, 2015 – Karlskrona, Sweden
  11. Chair of SNAA 2015 - The 5th Workshop on Social Network Analysis in Applications, Paris, France, August 25-28, 2015
  12. AMIA 2015 Joint Summits on Translational Science, San Francisco CA, March 23-27, 2015
  13. SI 2014 - Workshop on Social Influence, collocated with SocInfo 2014, November 10, Barcelona, Spain
  14. Co - founder ENIC 2014 - The First European Network Intelligence Conference, September 29-30, 2014 - Wroclaw, Poland
  15. ASONAM 2014 - The 2014 IEEE/ACM International Conference on Advances in Social Network Analysis and Mining, Beijing, China, August 17-20, 2014.
  16. Chair of SNAA 2014 - The 4th Workshop on Social Network Analysis in Applications, Beijing, China, August 17, 2014
  17. DCOSS 2014 - IEEE International Conference on Distributed Computing in Sensor Systems, Marina Del Rey, California, May 26 - 28 2014`
  18. SocInfo 2014 - The 6th International Conference on Social Informatics. Barcelona, 10-13 November 2014.
  19. COMPSAC 2014 - 38th Annual International Computers, Software & Applications Conference, Västerås, Sweden 21–25 July, 2014
  20. IICST 2014 - Innovations in Information and Communication Science and Technology, September 3-5, 2014, Warsaw, Poland
  21. DSAA 2014 - 2014 International Conference on Data Science and Advanced Analytics, October 30 - November 1, 2014, Shanghai, China
  22. SoNAEdu 2014 - The International Workshop on Social Networks and its Applications on Education Beijing, China, August 4, 2014 (SocialCom2014)
  23. SOTICS 2014 - The Fourth International Conference on Social Eco-Informatics October 12 - 16, 2014 - Nice, France
  24. Publicity Chair MISNC 2014 - The 2014 Multidisciplinary International Social Networks Conference, Kaohsiung, Taiwan, September 13-14, 2014
  25. ACIIDS 2014 - The 6th Asian Conference on Intelligent Information and Database Systems April 7 - 9, 2014, Bangkok, Thailand
  26. Chair of SNAA 2013 - The Third Workshop on Social Network Analysis in Applications, 25-28 August, 2013, Niagara Falls, Canada
  27. SocInfo 2013 - The 5th International Conference on Social Informatics (SocInfo2013), 25–27 November 2013, Kyoto, Japan.
  28. ASONAM 2013 - The 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 25-28 August, 2013, Niagara Falls, Canada
  29. Program Char of SNAA 2013 - The Third Workshop on Social Network Analysis in Applications, 25-28 August, 2013, Niagara Falls, Canada
  30. SOTICS 2013 - The Third International Conference on Social Eco-Informatics, November 17 - 22, 2013 - Lisbon, Portugal
  31. ASONAM 2012 - The 2012 International Conference on Advances in Social Networks Analysis and Mining, 26-29 August, 2012, Kadir Has University, Istanbul, Turkey
  32. SOTICS 2012 - The Second International Conference on Social Eco-Informatics, October 21 - 26, 2012 - Venice, Italy
  33. EWCIP 2012 - II European Workshop on Computing and ICT Professionalism. Associated to the 7th Iberian Conference on Information Systems and Technologies. 20th - 23rd June 2012, Madrid, Spain
  34. INBAST 2012 - 2nd Workshop on Industrial and Business Applications of Semantic Web Technologies. Associated to the OnTheMove Federated Conferences and Workshops OTM 2012. 10.-14.9.2012, Rome, Italy

Scolarships and awards
  1. Fellowship fot the best young scientists awarded by Polish Ministry of Science and Higher Education
  2. Fellowship co-Financed by European Union within European Social Fund for Young Scientists Młoda Kadra 2015 Plus 2014/2015 (IV edycja)
  3. Fellowship co-Financed by European Union within European Social Fund for Young Scientists Młoda Kadra 2015 Plus 2013/2014 (III edycja)
  4. Fellowship co-Financed by European Union within European Social Fund for Young Scientists Młoda Kadra 2013
  5. Fellowship co-Financed by European Union within European Social Fund for Young Scientists Młoda Kadra 2012
  6. Rector Award for scientific achievements in the academic year 2011/2012
  7. Rector Award for scientific achievements in the academic year 2010/2011
  8. "Best Poster/Demo/Paper Award" at the conference SocInfo 2011 for the article "Tracking Group Evolution in Social Networks". Photos 1, 2 and 3 from the award ceremony.
  9. The winner of "Student Travel Suport" at the conference SocInfo 2011 for the article "Tracking Group Evolution in Social Networks". Photo from the award ceremony.
  10. Four time winner of the competition for Young Scientists to fund research aimed at developing young scientists and PhD students, organized by the Intitute of Informatics, Wrocław University of Technology
  11. Wroclaw City Council Scholarship 2011/2012
  12. Scholarship under the Przedsiębiorczy doktorant - inwestycja w innowacyjny rozwój regionu, funded by the Lower Silesian Marshal's Office and the European Union under the European Social Fund.
  13. Scholarship from the Wrocław University of Technology winter term 2011/2012
  14. Scholarship from the Wrocław University of Technology summer term 2010/2011
  15. PhD scholarship in 2008/2009, 2009/2010, 2010/2011 and 2011/2012
  16. Scholarship for outstanding achievement in science in 2004/2005, 2005/2006, 2006/2007, 2007/2008, 2008/2009, 2010/2011 and 2011/2012

R&D Projects

  1. AITAX (AI Tax Advisor) – an innovative AI system for tax-related support, FIRST TEAM FENG, FNP (FENG.02.02-IP.05-0314/23), 2024-27, Project Manager.
  2. Methods for effectively answering questions for multimodal data, industrial PhD in colaboration with Alphamoon sp. z o.o., Ministerstwo Edukacji i Nauki (DWD/7/0228/2023), 2023-27, Project Manager.
  3. Crisis Detector - discovering and predicting image crises in social media, R+D project with PSMM, under the Intelligent Development Operational Programme 2014 – 2020, Submeasure 1.1.1.
  4. MultiSpred - Control and spreading processes in multilayer networks, research project funded by Polish National Science Centre, 2023-27, Project Manager and Participal Investigator.
  5. OMINO - Overcoming Multilevel INformation Overload, HORIZON-MSCA-2021-SE-01, 2023-26
  6. Optimization of water distribution network pressure using artificial intelligence, industrial PhD in colaboration with Municipal Water and Sewerage Company S.A., Ministerstwo Edukacji i Nauki (DWD/6/0543/2022), 2022-26, Project Manager.
  7. Modelling social interactions using data streams, esearch project funded by Polish National Science Centre, 2022-25.
  8. V4 CARE ARSEC - Green Energy Transition, Post-COVID Central Europe & the Green Transition AI-Assisted Impact Analysis, Projections & Scenarios, research project funded by International Visegrad Fund, 2022-24, Participal Investigator.
  9. MultiSpred - Spread of influence in multilayer networks, research project funded by Polish National Science Centre, 2017-22, Project Manager and Participal Investigator.
  10. V4 CARE ARSEC - Computer Aided REasoning in Analysing Regional Socio-Economic Complexity, research project funded by International Visegrad Fund, 2018-20, Participal Investigator.
  11. RENOIR - Reverse EngiNeering of sOcial Information pRocessing, H2020-MSCA-RISE-2015, 2016-19, no. 691152.
  12. Business Intelligence Tools for Virtual Sales Points, INNOTECH-K3/IN3/56/225874/NCBR/15, In-Tech, National Centre for Research and Development
  13. ENGINE - European research centre of Network intelliGence for INnovation Enhancement, FP7-REGPOT-2012-2013-1, 2013-16, no. 316097, Project Manager.
  14. ENGINE - European research centre of Network intelliGence for INnovation Enhancement, FP7-REGPOT-2012-2013-1, 2013-16, no. 316097, Project Manager.
  15. Big data in banking - Assessment of different financial behaviour models, Alior Bank, 2013.
  16. Preparation and delivery of algorithms and mathematical models for xDSL services pre-qualification, Orange Labs, 2012-13.
  17. TRANSFoRm - Translational Research and Patient Safety in Europe ICT-2011.11.3, FP7, 2011-15.
  18. Przedsiębiorczy doktorant - inwestycja w innowacyjny rozwój regionu - Fellowship co-financed by European Union within European Social Fund - Project performed in cooperation with REC Global (now GlobalLogic)
  19. Data mining in complex social network systems, The Polish Ministry of Science and Higher Education research grant, 2010-13, in co-operation with Poznan University of Technology and AGH University of Science and Technology.
  20. GRASP# - Groups, Relationships and Activities of Suspected Persons, R&D Project founded by National Centre for Research and Development, in co-operation with Research & Engineering Center REC (now GlobalLogic) oraz Telnet, 2009-2011.
  21. MATURE - Continuous social learning in knowledge networks, Integrated Project no. 216356, 7FP ICT-2007.4.1, 2008-2012, Associated Partner.
  22. SoDiG - Social Values in Dynamic Groups, in co-operation with British Telecom, Intelligent Systems Research Centre (ISRC), 2008-09.

Code

mABCD

Kraiński, Ł., Czuba, M., Bródka, P., Prałat, P., Kamiński, B., & Théberge, F. (2026). Multilayer Artificial Benchmark for Community Detection (mABCD). Expert Systems with Applications, 130920.

PDF mABCD code in Julia and Python ports at GitHub

Network Diffusion

Czuba, M., Bródka, P. (2022). Network Diffusion: A Package to Simulate Spreading of Multiple Interacting Processes in Complex Networks. IEEE DSAA 2022 The 9th IEEE International Conference on Data Science and Advanced Analytics.

PDF Main repository with code Runnable Code Ocean capsule Presentation

Czuba, M., Nurek, M., Serwata, D., Qui, Y., Jia, M. Musiał, K., Michalski, R., Bródka, P. (2024). Network Diffusion – Framework to Simulate Spreading Processes in Complex Networks. Big Data Mining and Analytics, 7(1), ; https://doi.org/10.26599/BDMA.2024.9020010

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mLFR Benchamark

Testing Community Detection Algorithms in Multi–layered, Multiplex and Multiple Social Networks

This is the extention of LFR Benchmark introduced by A. Lancichinetti, S. Fortunato, F. Radicchi
in the paper Benchmark graphs for testing community detection algorithms. Community detection is one of the hottest topics in network science. While for simple (one layered) social networks there is hundreds of different algorithms for multilayer social networks there is a few. While for simple (one layered) social networks there is a number of reference dataset like karate club or football league, and few widely accepted and well tested benchmarks like GN Benchmark or LFR Benchmark for multilayer social networks there is a none. This paper propose an extension of well-known LFR Benchmark which will enable researchers to test and compare community detection algorithms in multilayer, multiplex and multiple social networks.

  1. Bródka P. A Method for GroupExtraction and Analysis in Multi-layered Social Networks Ph.D. disertation, Wrocław, Poland, 2012
    arXiv.org:1302.1369

  2. Bródka P., Grecki T.: mLFR Benchamark: Testing Community Detection Algorithms in Multilayer, Multiplex and Multiple Social Networks.

If you are using our mLFR Benchmark please cite our work and work of A. Lancichinetti, S. Fortunato and F. Radicchi

 Java application (jar)

 Java Source Code (Eclipse project)

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GED
The Method for Group Evolution Discovery in Social Networks

The continuous interest in the social network area contributes to the fast development of this field. The new possibilities of obtaining and storing data facilitate deeper analysis of the entire network, extracted social group and single individuals as well. One of the most interesting research topic is the dynamics of social group, it means analysis of Group Evolution over time. Having appropriate knowledge and methods for dynamic analysis, one may attempt to predict the future of the group and then manage it properly in order to achieve or change this predicted future according to specific needs. Such ability would be a powerful tool in the hands of human resource managers, personnel recruitment, marketing, etc.

The social Group Evolution consists of individual events and seven types of such changes have been identified in the paper: continuing, shrinking, growing, splitting, merging, dissolving and forming. To enable the analysis of Group Evolution a change indicator – inclusion measure was proposed. It has been used in a new method for exploring the evolution of social group, called Group Evolution Discovery (GED).

Introduction to the GED Method the poster or/and the presentation.

  1. Bródka P., Saganowski S., Kazienko P.: GED: The Method for Group Evolution Discovery in Social Networks, Social Network Analysis and Mining, March 2013, Volume 3, Issue 1, pp 1-14, DOI:10.1007/s13278-012-0058-8

  2. Saganowski S., Bródka P., Kazienko P.: Influence of the User Importance Measure on the Group Evolution Discovery Foundations of Computing and Decision Sciences, Volume 37, Issue 4, Pages 293-303, 2012

  3. Saganowski S., Bródka P., Kazienko P.: Influence of the Dynamic Social Network Timeframe Type and Size on the Group Evolution Discovery ASONAM 2012, IEEE Computer Society, 2012, pp. 678-682.

  4. Bródka P., Kazienko P, Kołoszczyk B.: Predicting Group Evolution in the Social Network SocInfo 2012, LNCS 7710, pp. 54–67, 2012.

The MS SQL Script with GED method - V_0.1

  1. Split your social network into timeframes
  2. For each timeframe calculate the communities (extract groups) using any group detection method. The GED method was tested for Clique Percolation Method and The Louvain Method
  3. For each group and each timeframe calculate the user importance measure e.g. degree centrality, betweenness centrality, closeness centrality, page rank, social position, etc.
  4. Create a new database in Microsoft SQL Server, download and run the SQL script
  5. Import your data into Groups_with_importance_measure table
  6. Execute the GED procedure e.g. EXEC [dbo].[GED]
  7. The results can be found in GED_evolution table
  8. Analyse and enjoy :)

GED implementationin Python by Diakidis, Georgios, et al. who used GED in the article Predicting the evolution of communities in social networks Proceedings of the 5th International Conference on Web Intelligence, Mining and Semantics. ACM, 2015.

For Students

Office Hours
Place: Building D-21, room 231 (entrance C)
Time: Check at USOS. I would recommend to contact me by email earlier.

Contact

Address
Katedra Sztucznej Inteligencji, Politechnika Wrocławska,
Wyb. Wyspiańskiego 27, Building: D21, Room: 231 (entrence C)
50-370 Wrocław


Email
piotr.brodka@pwr.edu.pl


Phone
+48 71 320 3453


Network Science Lab
Department of Artificial Intelligence
Studiuj.AI
Wrocław Univewrsity of Science and Technology

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