People

Pawel Romanczuk

Principal Investigator

Behavioral Biology

HU Berlin

Email:
pawel.romanczuk@hu-berlin.de

Phone: +49 30 2093 6780

Photo: SCIoI

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Pawel Romanczuk

Photo: SCIoI

Pawel Romanczuk holds a professorship on Complexity Research in Adaptive Systems at HU. For SCIoI, he works at the interface of applied mathematics, theoretical physics, and behavioral biology. He focuses on collective behavior of organismic systems. His research bridges analytical and synthetic sciences to study self-organization, evolutionary adaptations, and functional dynamical behavior.

Projects

Pawel Romanczuk is member of Project 11, Project 12, Project 26, Project 27, Project 33, Project 34, Project 41, Project 42, Project 51, Project 52, Project B3.

Publications +

Puy, A., Gimeno, E., Torrents, J., Bartashevich, P., Miguel, M. C., Pastor-Satorras, R., & Romanczuk, P. (2024). Selective social interactions and speed-induced leadership in schooling fish. Proceedings National Academy of Sciences. https://doi.org/10.1073/pnas.2309733121

Pacher, K., Krause, J., Bartashevich, P., Romanczuk, P., Bideau, P., Pham, D., Burns, A., Deffner, D., Dhellemmes, F., Binder, B., Boswell, K., Galván-Magaña, F., Domenici, P., & Hansen, M. (2024). Evidence for a by-product mutualism in a group hunter depends on prey movement state. Functional Ecology. https://doi.org/10.1111/1365-2435.14638

Mezey, D., Deffner, D., Kurvers, R. H., & Romanczuk, P. (2024). Visual social information use in collective foraging. PLoS Computational Biology, 20, 1–24. https://doi.org/10.1371/journal.pcbi.1012087

Licht, M., Burns, A., Pacher, K., Krause, S., Bartashevich, P., Romanczuk, P., Hansen, M., Then, A., & Krause, J. (2024). Sailfish generate foraging opportunities for seabirds in multi-species predator aggregations. Biology Letters, 20(7). https://doi.org/10.1098/rsbl.2024.0177

Deffner, D., Mezey, D., Kahl, B., Schakowski, A., Romanczuk, P., Wu, C. M., & Kurvers, R. (2024). Collective incentives reduce over-exploitation of social information in unconstrained human groups. Nature Communications. https://doi.org/10.1038/s41467-024-47010-3

Zheng, Y., & Romanczuk, P. (2024). Collective Shepherding. DPG Spring Meeting 2024.

Sevinchan, Y., Vollmoeller, C., Pacher, K., Bierbach, D., Krause, J., & Romanczuk, P. (2024). Modelling and Analysing Collective Waving Behaviour in Large Fish Shoals. DPG Spring Meeting 2024, SKM (talk).

Raoufi, M., Hamann, H., & Romanczuk, P. (2024). Messengers: Breaking Echo Chambers in Collective Opinion Dynamics with Homophily. arxiv. https://doi.org/10.48550/arXiv.2406.06440

Raoufi, M., Hamann, H., & Romanczuk, P. (2024). LARS: Light Augmented Reality System for Swarm. ANTS 2024 Conference.

Raoufi, M., Hamann, H., & Romanczuk, P. (2024). Breaking Echo-chambers in Opinion Dynamics with Spatial Information. Artificial Life (ALife) 2024 Conference.

Mezey, D., Bastien, R., Zheng, Y., McKee, N., Stoll, D., Hamann, H., & Romanczuk, P. (2024). Purely vision-based collective movement of robots. arXiv. https://doi.org/10.48550/arXiv.2406.17106

Govoni, P., & Romanczuk, P. (2024). Fundamental Visual Navigation Algorithms: Indirect Sequential, Biased Diffusive, & Direct Pathing. arXiv. https://doi.org/10.48550/arXiv.2407.13535

Zheng, Y., Tang, W., Shee, A., Romanczuk, P., & Hueupe, C. (2024). Collective Dynamics in Dense Systems of Active Polar Disks. DPG Spring Meeting 2024.

Sevinchan, Y., Vollmoeller, C., Pacher, K., Bierbach, D., Krause, J., & Romanczuk, P. (2024). Spatio-temporal Dynamics of Social Contagion in Bio-inspired Interaction Networks. SAB 2024 (Peer-Reviewed Conference).

Winklmayr, C., Kao, A. B., Bak-Coleman, J. B., & Romanczuk, P. (2023). Collective decision strategies in the presence of spatio-temporal correlations. Collective Intelligence. https://doi.org/10.1177/26339137221148675

Tump, A., Deffner, D., Pleskac, T., Romanczuk, P., & Kurvers, R. (2023). A cognitive computational approach to social and collective decision-making. Perspectives on Psychological Science. https://doi.org/10.1177/17456916231186964

Sarkanych, P., Krasnytska, M., Gomez-Nava, L., Romanczuk, P., & Holovatch, Y. (2023). Individual bias and fluctuations in collective decision making: from algorithms to Hamiltonians. Physical Biology. https://doi.org/10.1088/1478-3975/acd6ce

Lukas, J., Krause, J., Träger, A. S., Piotrowski, J. M., Romanczuk, P., Sprekeler, H., Arias-Rodriguez, L., Krause, S., Schutz, C., & Bierbach, D. (2023). Multispecies collective waving behaviour in fish. Philosophical Transactions of the Royal Society B. https://doi.org/10.1098/rstb.2022.0069

Gómez-Nava, L., Lange, R. T., Klamser, P. P., Lukas, J., Arias-Rodriguez, L., Bierbach, D., Krause, J., Sprekeler, H., & Romanczuk, P. (2023). Fish shoals resemble a stochastic excitable system driven by environmental perturbations. Nature Physics. https://doi.org/10.1038/s41567-022-01916-1

Davidescu, M. R., Romanczuk, P., Gregor, T., & Couzin, I. D. (2023). Growth produces coordination trade-offs in Trichoplax adhaerens, an animal lacking a central nervous system. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2206163120

Sevinchan, Y., Bierbach, D., Gómez-Nava, L., Krause, J., & Romanczuk, P. (2023). Self-organized Criticality in Animal Collectives. DPG Spring Meeting 2023, SKM (poster).

Raoufi, M., Romanczuk, P., & Hamann, H. (2023). Inter-individual Variations in Swarm Robotics with the Case Study of Kilobots. ICRA 2023/workshop “Heterogeneity in Multi-Robot Systems.” https://raaslab.org/icra2023-hmrs/#contr

Raoufi, M., Romanczuk, P., & Hamann, H. (2023). Individuality in Swarm Robots with the Case Study of Kilobots: Noise, Bug, or Feature? Artificial Life (ALife) 2023. https://doi.org/10.1162/isal_a_00623

Raoufi, M., Romanczuk, P., & Hamann, H. (2023). Estimation of continuous environments by robot swarms: Correlated networks and decision-making. ICRA 2023. https://doi.org/10.1109/icra48891.2023.10161354

Zhao, Y., Huepe, C., & Romanczuk, P. (2022). Contagion dynamics in self-organized systems of self-propelled particles. Scientific Reports. https://doi.org/10.1038/s41598-022-06083-0

Tump, A. N., Wolf, M., Romanczuk, P., & Kurvers, R. (2022). Avoiding costly mistakes in groups: The evolution of error management in collective decision making. PLOS Computational Biology. https://doi.org/10.1371/journal.pcbi.1010442

Poel, W., Daniels, B. C., Sosna, M. M. G., Twomey, C. R., Blanc, S. L., Couzin, I., & Romanczuk, P. (2022). Subcritical escape waves in schooling fish. Science Advances. https://doi.org/10.1126/sciadv.abm6385

Doran, C., Bierbach, D., Lukas, J., Klamser, P., Landgraf, T., Klenz, H., Habedank, M., Arias-Rodriguez, L., Krause, S., Romanczuk, P., & Krause, J. (2022). Fish waves as emergent collective antipredator behavior. Current Biology. https://doi.org/10.1016/j.cub.2021.11.068

Bierbach, D., Gómez-Nava, L., Francisco, F. A., Lukas, J., Musiolek, L., Hafner, V. V., Landgraf, T., Romanczuk, P., & Krause, J. (2022). Live fish learn to anticipate the movement of a fish-like robot. Bioinspiration & Biomimetics. https://doi.org/10.1088/1748-3190/ac8e3e

Romanczuk, P., & Daniels, B. C. (2022). Phase Transitions and Criticality in the Collective Behavior of Animals — Self-Organization and Biological Function. Order, Disorder and Criticality. https://doi.org/10.1142/9789811260438_0004

Tump, A., Pleskac, T., Romanczuk, P., & Kurvers, R. (2022). How the cognitive mechanisms underlying fast choices influence information spread and response bias amplification in groups. Proceedings of the 44th Annual Conference of the Cognitive Science Society, 44, 658–664. https://escholarship.org/uc/item/5m540872#main

Poel, W., Winklmayr, C., & Romanczuk, P. (2021). Spatial Structure and Information Transfer in Visual Networks. Frontiers in Physics. https://doi.org/10.3389/fphy.2021.716576

Lukas, J., Auer, F., Goldhammer, T., Krause, J., Romanczuk, P., Klamser, P., Arias-Rodriguez, L., & Bierbach, D. (2021). Diurnal Changes in Hypoxia Shape Predator-Prey Interaction in a Bird-Fish System. Frontiers in Ecology and Evolution, 9. https://doi.org/10.3389/fevo.2021.619193

Lukas, J., Romanczuk, P., Klenz, H., Klamser, P., Arias Rodriguez, L., Krause, J., & Bierbach, D. (2021). Acoustic and visual stimuli combined promote stronger responses to aerial predation in fish. Behavioral Ecology, arab043. https://doi.org/10.1093/beheco/arab043

Klamser, P., & Romanczuk, P. (2021). Collective predator evasion: Putting the criticality hypothesis to the test. PLOS Computational Biology. https://doi.org/10.1371/journal.pcbi.1008832

Klamser, P. P., Gómez-Nava, L., Landgraf, T., Jolles, J. W., Bierbach, D., & Romanczuk, P. (2021). Impact of Variable Speed on Collective Movement of Animal Groups. Frontiers in Physics, 9. https://doi.org/10.3389/fphy.2021.715996

Krause, J., Romanczuk, P., Cracco, E., Arlidge, W., Nassauer, A., & Brass, M. (2021). Collective rule-breaking. Trends in Cognitive Sciences. https://doi.org/10.1016/j.tics.2021.08.003

Daniels, B. C., & Romanczuk, P. (2021). Quantifying the impact of network structure on speed and accuracy in collective decision-making. Theory in Biosciences, 140, 379–390. https://doi.org/10.1007/s12064-020-00335-1

Bak-Coleman, J. B., Alfano, M., Barfuss, W., Bergstrom, C. T., Centeno, M. A., Couzin, I. D., Donges, J. F., Galesic, M., Gersick, A. S., Jacquet, J., Kao, A. B., Moran, R. E., Romanczuk, P., Rubenstein, D. I., Tombak, K. J., Bavel, J. J. V., & Weber, E. U. (2021). Stewardship of global collective behavior. Proceedings of the National Academy of Sciences, 118(27). https://doi.org/10.1073/pnas.2025764118

Raoufi, M., Hamann, H., & Romanczuk, P. (2021). Speed-vs-Accuracy Tradeoff in Collective Estimation: An Adaptive Exploration-Exploitation Case. IEEE 2021 International Symposium on Multi-Robot and Multi-Agent Systems (MRS). https://doi.org/10.1109/MRS50823.2021.9620695

Bierbach, D., Francisco, F., Lukas, J., Landgraf, T., Maxeiner, M., Romanczuk, P., Musiolek, L., Hafner, V. V., & Krause, J. (2021). Biomimetic robots promote the 3Rs Principle in animal testing. ALIFE 2021: The 2021 Conference on Artificial Life. https://doi.org/10.1162/isal_a_00375

Winklmayr, C., Kao, A. B., Bak-Coleman, J. B., & Romanczuk, P. (2020). The wisdom of stalemates: consensus and clustering as filtering mechanisms for improving collective accuracy. Proceedings of the Royal Society B: Biological Sciences, 287(1938), 20201802. https://doi.org/10.1098/rspb.2020.1802

Rahmani, P., Peruani, F., & Romanczuk, P. (2020). Flocking in complex environments—Attention trade-offs in collective information processing. PLOS Computational Biology, 16(4), e1007697. https://doi.org/10.1371/journal.pcbi.1007697

Landgraf, T., Gebhardt, G. H. W., Bierbach, D., Romanczuk, P., Musiolek, L., Hafner, V. V., & Krause, J. (2020). Animal-in-the-Loop: Using Interactive Robotic Conspecifics to Study Social Behavior in Animal Groups. Annual Review of Control, Robotics, and Autonomous Systems. https://doi.org/10.1146/annurev-control-061920-103228

Jolles, J. W., Weimar, N., Landgraf, T., Romanczuk, P., Krause, J., & Bierbach, D. (2020). Group-level patterns emerge from individual speed as revealed by an extremely social robotic fish. Biology Letters, 16(9), 20200436. https://doi.org/10.1098/rsbl.2020.0436

Bierbach, D., Mönck, H. J., Lukas, J., Habedank, M., Romanczuk, P., Landgraf, T., & Krause, J. (2020). Guppies Prefer to Follow Large (Robot) Leaders Irrespective of Own Size. Frontiers in Bioengineering and Biotechnology, 8. https://doi.org/10.3389/fbioe.2020.00441

Bierbach, D., Krause, S., Romanczuk, P., Lukas, J., Arias-Rodriguez, L., & Krause, J. (2020). An interaction mechanism for the maintenance of fission–fusion dynamics under different individual densities. PeerJ, 8, e8974. https://doi.org/10.7717/peerj.8974

Bastien, R., & Romanczuk, P. (2020). A model of collective behavior based purely on vision. Science Advances, 6(6), eaay0792. https://doi.org/10.1126/sciadv.aay0792

Sosna, M. M. G., Twomey, C. R., Bak-Coleman, J., Poel, W., Daniels, B. C., Romanczuk, P., & Couzin, I. D. (2019). Individual and collective encoding of risk in animal groups. Proceedings of the National Academy of Sciences, 116(41), 20556–20561. https://doi.org/10.1073/pnas.1905585116

Grants and Awards +

Best Workshop Poster Award (ICRA 2024)

Scientific Talks +

PI Lecture - Pawel Romanczuk (Science of Intelligence), “Collective behavior – quid est?”

Thursday Morning Talk - Dustin Lehmann, Fritz Francisco, Jorg Raisch, Pawel Romanczuk (Science of Intelligence), “Dynamical adaptation and learning: Knowledge transfer and cooperative learning in groups of heterogeneous agents”

PI Lecture - Pawel Romanczuk, “Modeling of flocking & swarming with stochastic agent-based models”

PI Lecture - Pawel Romanczuk (SCIoI): Collective Information Processing – From Simple Flocking Models to Real Ecological Systems

Zoom Lecture: Oliver Brock, Verena Hafner, Pawel Romanczuk (SCIoI): The Role of Example Behaviors in Science of Intelligence and for Your Project

Public Engagement +

For the Public - Science of Intelligence Fair 2023

For the Public - What does the swarm know? Collective intelligence explained at the HU Lab’s MitWissenschaft Event

For the Public - Berlin Science Week Talk, Ralf Kurvers and Pawel Romanczuk: Collective Intelligence or Collective Stupidity? From Fish Schools to Human Groups. Exploring swarm intelligence in fish and humans

For the Public - Berlin Science Week Talk, Pawel Romanczuk And Ralf Kurvers (SCIoI), Collective Intelligence or Collective Stupidity? What Humans can Learn from Fish

Press Coverage +

Profil – September 2020 - Schwarmverhaltensforschung

HU Berlin Zeitung – September 2019 - Sicherer gemeinsam: Bei Gefahr orientieren sich Fische an der Reaktion des Schwarmes

Eurekalert, September 2019 - Uncovering hidden intelligence of collectives