Tim Landgraf
Photo: SCIoI
Tim Landgraf is a computer scientist with strong interest in animal intelligence. His group develops modern tools such as robots or machine learning to gain new perspectives on different aspects of intelligence such as navigation or collective decision making. With his collaborators (Krause, Romanczuk, Bierbach) he has developed an interactive robotic fish that will be used in the SCoI Project 10 “Anticipation, Prediction and Behavioral Reliability in Social Interactions”.
Projects
Tim Landgraf is member of:
Publications +
6984777
Landgraf
1
apa
50
date
desc
year
19917
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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, 17(6), 065007. https://doi.org/10.1088/1748-3190/ac8e3e
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, 32(3), 708-714.e4. https://doi.org/10.1016/j.cub.2021.11.068
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, 715996. https://doi.org/10.3389/fphy.2021.715996
Landgraf, T., Gebhardt, G. H. W., Bierbach, D., Romanczuk, P., Musiolek, L., Hafner, V. V., & Krause, J. (2021). Animal-in-the-Loop: Using Interactive Robotic Conspecifics to Study Social Behavior in Animal Groups. Annual Review of Control, Robotics, and Autonomous Systems, 4(1), 487–507. https://doi.org/10.1146/annurev-control-061920-103228
Lukas, J., Kalinkat, G., Miesen, F. W., Landgraf, T., Krause, J., & Bierbach, D. (2021). Consistent Behavioral Syndrome Across Seasons in an Invasive Freshwater Fish. Frontiers in Ecology and Evolution, 8, 583670. https://doi.org/10.3389/fevo.2020.583670
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. The 2021 Conference on Artificial Life. The 2021 Conference on Artificial Life. https://doi.org/10.1162/isal_a_00375
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, 441. https://doi.org/10.3389/fbioe.2020.00441
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
Musiolek, L., Hafner, V. V., Krause, J., Landgraf, T., & Bierbach, D. (2020). Robofish as Social Partner for Live Guppies. In V. Vouloutsi, A. Mura, F. Tauber, T. Speck, T. J. Prescott, & P. F. M. J. Verschure (Eds.), Biomimetic and Biohybrid Systems (pp. 270–274). Springer International Publishing. https://doi.org/10.1007/978-3-030-64313-3_26
Landgraf, T., Moenck, H. J., Gebhardt, G. H. W., Weimar, N., Hocke, M., Maxeiner, M., Musiolek, L., Krause, J., & Bierbach, D. (2020). Socially competent robots: adaptation improves leadership performance in groups of live fish. arXiv. https://doi.org/10.48550/ARXIV.2009.06633
Science Daily – September 2020 - Extremely social robotic fish helps unravel collective patterns of animal groups
Profil – September 2020 - Schwarmverhaltensforschung
