Seminars
Contact :
Hèléne Berthoumieux
Tel : +33 (0) 1 40 79 xx xx
Paddy Royall
Tel : +33 (0) 1 40 79 xx xx
Gulliver seminars take place on Mondays at 11:30 AM in the F304 room, and typically last one hour including questions. The seminars are in English, and the scientific topics are mainly those studied in the laboratory.
Gulliver seminar : Matthew Turner (Warwick University, UK)
Collective motion & environmental path entropy
We discuss a “bottom up” model for collective motion. This involves moving agents that re-orientate so as to maximise a measure of the entropy of their environment in the future. We discuss why such principles might confer fitness on rather general grounds. We then discuss the dynamics that arise from them that lead to cohesive, co-aligned (ordered) swarms, in spite of the fact that the algorithm does not explicitly encode for co-alignment or cohesion. This is in contrast to “top down” models, in which these features are explicitly engineered into the models. Bottom-up models may therefore be better able to explain why qualitative phenomenon such as cohesion and co-alignment arise. We discuss several features of the dynamical scheme, including a novel order-disorder transition. Finally, we develop heuristics that mimic this motion. These may have applications in the context of self-propelled robotic systems.
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The audience is often heterogeneous - because of the wide range of scientific topics covered in the lab - so planning a talk for a broader audience would be preferred. The seminar is in English, and speakers are thus invited to prepare their slides in English.
The seminar starts at 11:30 AM. The speaker is asked to arrive in the lab at least 15 minutes in advance to set up their computer. The talks last typically 45 minutes, and are followed by a discussion time.