Associate Professor at the Department of Computer Science and Information Technology at West Pomeranian University of Technology in Szczecin, Poland.

Research interests are related to social networks, information diffusion, human-computer interaction and online marketing. Solid theoretical and practical knowledge of online marketing, compounded by experience in tracking systems and optimization techniques. Ph.D. in Computer Science from the Technical University of Szczecin. Minor field features online marketing, decision support, decisions under uncertainty and fuzzy modeling. Online experiences since 2000 and engagement in several projects related to marketing programs, ad management systems, campaigns monitoring and trafficking, online social platforms and virtual worlds.

Key lectures: Web systems and applications, Digital marketing, Online information systems, User centered design


Jankowski, J., Hamari J., Wątróbski, J., A gradual approach for maximising user conversion without compromising experience with high visual intensity website elements, Internet Research 29 (1), 194-217, 2019

Wątróbski, J., Jankowski, J., Ziemba P., Karczmarczyk A., Zioło M., Generalised framework for multi-criteria method selection, Omega, in Press

Karczmarczyk A., Jankowski, J., Wątróbski, J., Multi-criteria decision support for planning and evaluation of performance of viral marketing campaigns in social networks, PloS one 13 (12), e0209372, 2, 2018

Jankowski, J., Waniek M., Alshamsi A., Bródka P., Michalski R., Strategic distribution of seeds to support diffusion in complex networks, PloS one 13 (10), e0205130

Jankowski, J., Szymanski B.K., Kazienko P., Michalski R., Bródka P., Probing Limits of Information Spread with Sequential Seeding, Scientific reports 8 (1), 13996, 2 2018

Wątróbski, J., Ziemba E., Karczmarczyk A., Jankowski, J., An Index to Measure the Sustainable Information Society: The Polish Households Case, Sustainability 10 (9), 3223, 3, 2018

Lewandowska, A., & Jankowski, J. (2017). The negative impact of visual web advertising content on cognitive process: towards quantitative evaluation. International Journal of Human-Computer Studies, 108, 41-49.

Jankowski, J., Michalski, R., Bródka, P., A multilayer network dataset of interaction and influence spreading in a virtual world, Scientific data 4, 170144

Rejer, I., Jankowski, J., Brain activity patterns induced by interrupting the cognitive processes with online advertising, Cognitive Processing, 1-12

Jankowski, J., Zioło, M., Karczmarczyk, A., Wątróbski, J., Towards sustainability in viral marketing with user engaging supporting campaigns, Sustainability 10 (1), 15

Jankowski, J., Bródka, P., Kazienko, P., Szymanski, B., Kajdanowicz, T. Michalski, R.: Balancing Speed and Coverage by Sequential Seeding in Complex Networks, Scientific Reports 7, Article number: 891 (2017) [Link]

Jankowski, J., Dynamic Rankings for Seed Selection in Complex Networks, Entropy 2017, 19(4), 170 [Link]

Jankowski, J., Bródka, P., & Hamari, 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.

Jankowski, J., Kazienko, P., Wątróbski, J., Lewandowska, A., Ziemba, P., & Zioło, M. (2016). Fuzzy multi-objective modeling of effectiveness and user experience in online advertising. Expert Systems with Applications, 65, 315-331.

Jankowski, J., Kolomvatsos, K., Kazienko, P., & Wątróbski, J. (2016). Fuzzy Modeling of User Behaviors and Virtual Goods Purchases in Social Networking Platforms. Journal of Universal Computer Science, 22(3), 416-437.

Utz, S., & Jankowski, J. (2016). Making “friends” in a virtual world: The role of preferential attachment, homophily, and status. Social Science Computer Review, 34(5), 546-566.

Jankowski, J., Saganowski, S., & Bródka, P. (2016). Evaluation of TRANSFoRm Mobile eHealth Solution for Remote Patient Monitoring during Clinical Trials. Mobile Information Systems, 2016.

Wątróbski, J., Ziemba, P., Jankowski, J., & Zioło, M. (2016). Green Energy for a Green City—A Multi-Perspective Model Approach. Sustainability, 8(8), 702.

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.

Różewski, P., & Jankowski, J. (2015). Model of multilayer knowledge diffusion for competence development in an organization. Mathematical Problems in Engineering, 2015

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.

Goode, S., Shailer, G., Wilson, M., & Jankowski, J. (2014). Gifting and status in virtual worlds. Journal of Management Information Systems, 31(2), 171-210.



Social media, social networks, complex networks, social networking platforms, dynamic networks, virtual goods, virtual worlds, social relations, visual network analysis, social big data


Dynamics of information spreading, social influence, seeding strategies, agent based modelling, sequential seeding, adaptive seeding, viral marketing, word of mouth, epidemic models, social contagion

Agent based SIMULATIONS AND modeling

Simulation models, socio-technical systems, information flow, predictions, agent-based social simulation, prediction, social dynamics, behavioral models, evolution monitoring

human-computer interaction

Web systems, usability, web interfaces, recommending interfaces, web design, clicks tracking, eye tracking, persuasion, interruptions of cognitive processess

digital marketing AND ADAPTIVE CONTENT

Personalization, conversion optimization, user modeling, adaptive marketing content, ad server technologies, content morphing, perceptual studies, intrusiveness of marketing content


Multi-objective optimization, fuzzy systems, fuzzy modelling, uncertainty, expert systems, multi-criteria decision analysis, compromise solutions, mixture models