19 papers · ranked by Valyu relevance
Rita Parada Ramos, Sancho Moura Oliveira, Susana Margarida Vieira, Anders Lyhne Christensen + 1 more
'Anders Lyhne Christensen' 'Josh Bongard'] In large scale systems of embodied agents, such as robot swarms, the ability to flock is essential in many tasks. However, the conditions necessary to artificially evolve self-organised flocking behaviours remain unknown. In this paper, we study and demonstrate how…
Andrea Cavagna, Lorenzo Del Castello, Irene Giardina, Tomás S. Grigera + 7 more
'Tomás S. Grigera' 'Asja Jelić' 'Stefania Melillo' 'Thierry Mora' 'Leonardo Parisi' 'Edmondo Silvestri' 'Massimiliano Viale' 'Aleksandra M. Walczak'] Birds in a flock move in a correlated way, resulting in large polarization of velocities. A good understanding of this collective behavior exists for linear motion of the…
David L. Krongauz, Amir Ayali, Gal A. Kaminka
Naturally occurring collective motion is a fascinating phenomenon in which swarming individuals aggregate and coordinate their motion. Many theoretical models of swarming assume idealized, perfect perceptual capabilities, and ignore the underlying perception processes, particularly for agents relying on visual…
David L. Krongauz, Amir Ayali, Gal A. Kaminka, Ricardo Martinez-Garcia
'Ricardo Martinez-Garcia'] Naturally occurring collective motion is a fascinating phenomenon in which swarming individuals aggregate and coordinate their motion. Many theoretical models of swarming assume idealized, perfect perceptual capabilities, and ignore the underlying perception processes, particularly for agents…
Rama Hoetzlein
The aerial flocking of birds, or murmurations, have fascinated observers while presenting many challenges to behavioral study and simulation. We examine how the periphery of murmurations remain well bounded and cohesive. We also investigate agitation waves, which occur when a flock is disturbed, developing a plausible…
Wonki Lee, DaeEun Kim
This paper presents a distributed coordination methodology for multi-robot systems, based on nearest-neighbor interactions. Among many interesting tasks that may be performed using swarm robots, we propose a biologically-inspired control law for a shepherding task, whereby a group of external agents drives another…
Dennis J. Evangelista, Dylan D. Ray, Sathish K. Raja, Tyson L. Hedrick
'Tyson L. Hedrick'] Chimney swifts (Chaetura pelagica) are highly manoeuvrable birds notable for roosting overnight in chimneys, in groups of hundreds or thousands of birds, before and during their autumn migration. At dusk, birds gather in large numbers from surrounding areas near a roost site. The whole flock then…
Yandong Xiao, Xiaokang Lei, Zhicheng Zheng, Yalun Xiang + 2 more
As one of the most common and spectacular manifestations of coordinated behavior, collective motion is the spontaneous emergence of the ordered movement in a system consisting of many self-propelled agents, e.g., flocks of birds, schools of fish, herds of animals, and human crowds. Despite extensive studies on…
Marine de Marcken, Raphaël Sarfati
Sheep are gregarious animals, and they often aggregate into dense, cohesive flocks, especially under stress. In this paper, we use image processing tools to analyze a publicly available aerial video showing a dense sheep flock moving under the stimulus of a shepherding dog. Inspired by the fluidity of the motion, we…
Christopher Knievel, Lars Krueger
— Driver assistance systems are increasingly becoming part of the standard equipment of vehicles and thus contribute to road safety. However, as they become more widespread, the requirements for cost efficiency are also increasing, and so few and inexpensive sensors are used in these systems. Especially in challenging…
Elisa Perinot, Johannes Fritz, Leonida Fusani, Bernhard Voelkl + 1 more
'Marco S. Nobile'] The investigation of the emergent collective behaviour in flying birds is a challenging task, yet it has always fascinated scientists from different disciplines. In the attempt of studying and modelling line formation, we collected high-precision position data of 29 free-flying northern bald ibises…
Aaron J. Corcoran, Tyson L. Hedrick
Animal groups have emergent properties that result from simple interactions among individuals. However, we know little about why animals adopt different interaction rules because of sparse sampling among species. Here, we identify an interaction rule that holds across single and mixed-species flocks of four migratory…
Marina Papadopoulou, Hanno Hildenbrandt, Rolf F. Storms, Claudio Carere + 2 more
European starlings perform a great diversity of patterns of collective behaviour when hunted by aerial predators; their large flocks continuously change shape, size, and internal structure. How these complex patterns emerge by self-organization through ‘rules’ at the individual level is still unknown. Here, we combine…
Apurva Narechania, Richard Baker, Rob DeSalle, Barun Mathema + 3 more
Collective animal behavior such as the flocking of birds or the shoaling of fish has inspired a class of algorithms designed to optimize distance-based clusters in various applications including document analysis and DNA microarrays. In the flocking model, individual agents respond only to their immediate environment…
Trilochan Bagarti, Shakti N. Menon
We introduce a stochastic agent-based model for the flocking dynamics of self-propelled particles that exhibit velocity-alignment interactions with neighbours within their field of view. The stochasticity in the dynamics of the model arises purely from the uncertainties at the level of interactions. Despite the absence…
Daniel J. Pearce, Adam Miller, George Rowlands, Matthew S. Turner
Swarming is a conspicuous behavioural trait observed in bird flocks, fish shoals, insect swarms and mammal herds. It is thought to improve collective awareness and offer protection from predators. Many current models involve the hypothesis that information coordinating motion is exchanged between neighbors. We argue…
Takayuki Niizato, Yukio-Pegio Gunji, Gonzalo G. de Polavieja
Recent advances in the study of flocking behavior have permitted more sophisticated analyses than previously possible. The concepts of “topological distances” and “scale-free correlations” are important developments that have contributed to this improvement. These concepts require us to reconsider the notion of a…
Jessica J. Bellefeuille, Ruchitha C. B. Ratnayake, Emily Cornthwaite, Roslyn Dakin
Grouping with others can provide enhanced information about resources and threats. A key hypothesis in social evolution proposes that individuals can benefit from social information in environments where it is challenging to meet energetic needs. Here, we test this hypothesis by examining the environmental drivers of…
Udit Halder, Vidya Raju, Matteo Mischiati, Biswadip Dey + 1 more
'P. S. Krishnaprasad'] Avian flocks display a wide variety of flight behaviors, including steady directed translation of center of mass, rapid change of overall morphology, re-shuffling of positions of individuals within a persistent form, etc. These behaviors may be viewed as flock-scale strategies, emerging from…