Scale-free correlations in collective motion with position-based interactions

E. Ferrante; A. E. Turgut; T. Wenseleers; C. Huepe

Scale-free correlations in collective motion with position-based interactions

E. Ferrante, A. E. Turgut, T. Wenseleers, C. Huepe

Engineering Sciences and Applied Mathematics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Collective Motion (CM) is observed in a variety of animal groups such as bird flocks and fish schools. In a recent study, Cavagna et al. (2010) found that the correlation lengths of speed and velocity fluctuations in starling flocks are not set by a specific interaction range, but are instead scale-free, proportional to the group size. So far, this observation has been justified by hypothesizing that flocks evolved to follow critical dynamics near a phase transition, where scale-free correlations are known to emerge. Criticality could provide an evolutionary advantage by allowing the flock to optimally respond to an external perturbation such as a predator attack. However, a criticality-based explanation may only be required in cases where interactions are based exclusively on relative orientations, as often assumed in CM models, following the seminal work by Vicsek et al. (1995). In this paper, we show that an alternative, more parsimonious, mechanism can produce scale-free correlations when considering interactions based on relative positions.

Original language	English (US)
Title of host publication	Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014
Editors	Hiroki Sayama, John Rieffel, Sebastian Risi, Rene Doursat, Hod Lipson
Publisher	MIT Press Journals
Pages	300-301
Number of pages	2
ISBN (Electronic)	9780262326216
State	Published - 2014
Event	14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014 - Manhattan, United States Duration: Jul 30 2014 → Aug 2 2014

Publication series

Name	Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014

Conference

Conference	14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014
Country/Territory	United States
City	Manhattan
Period	7/30/14 → 8/2/14

Funding

Acknowledgements This work was partially supported by the Vlaanderen Research Foundation Flanders (H2Swarm project), the US National Science Foundation (Grant No. PHY-0848755) and TUBITAK (Grant No. 2219).

ASJC Scopus subject areas

General Biochemistry, Genetics and Molecular Biology
Artificial Intelligence
Modeling and Simulation

Cite this

Ferrante, E., Turgut, A. E., Wenseleers, T., & Huepe, C. (2014). Scale-free correlations in collective motion with position-based interactions. In H. Sayama, J. Rieffel, S. Risi, R. Doursat, & H. Lipson (Eds.), Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014 (pp. 300-301). (Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014). MIT Press Journals.

Ferrante, E. ; Turgut, A. E. ; Wenseleers, T. et al. / Scale-free correlations in collective motion with position-based interactions. Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014. editor / Hiroki Sayama ; John Rieffel ; Sebastian Risi ; Rene Doursat ; Hod Lipson. MIT Press Journals, 2014. pp. 300-301 (Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014).

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abstract = "Collective Motion (CM) is observed in a variety of animal groups such as bird flocks and fish schools. In a recent study, Cavagna et al. (2010) found that the correlation lengths of speed and velocity fluctuations in starling flocks are not set by a specific interaction range, but are instead scale-free, proportional to the group size. So far, this observation has been justified by hypothesizing that flocks evolved to follow critical dynamics near a phase transition, where scale-free correlations are known to emerge. Criticality could provide an evolutionary advantage by allowing the flock to optimally respond to an external perturbation such as a predator attack. However, a criticality-based explanation may only be required in cases where interactions are based exclusively on relative orientations, as often assumed in CM models, following the seminal work by Vicsek et al. (1995). In this paper, we show that an alternative, more parsimonious, mechanism can produce scale-free correlations when considering interactions based on relative positions.",

author = "E. Ferrante and Turgut, {A. E.} and T. Wenseleers and C. Huepe",

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Ferrante, E, Turgut, AE, Wenseleers, T & Huepe, C 2014, Scale-free correlations in collective motion with position-based interactions. in H Sayama, J Rieffel, S Risi, R Doursat & H Lipson (eds), Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014. Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014, MIT Press Journals, pp. 300-301, 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014, Manhattan, United States, 7/30/14.

Scale-free correlations in collective motion with position-based interactions. / Ferrante, E.; Turgut, A. E.; Wenseleers, T. et al.
Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014. ed. / Hiroki Sayama; John Rieffel; Sebastian Risi; Rene Doursat; Hod Lipson. MIT Press Journals, 2014. p. 300-301 (Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Ferrante E, Turgut AE, Wenseleers T, Huepe C. Scale-free correlations in collective motion with position-based interactions. In Sayama H, Rieffel J, Risi S, Doursat R, Lipson H, editors, Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014. MIT Press Journals. 2014. p. 300-301. (Artificial Life 14 - Proceedings of the 14th International Conference on the Synthesis and Simulation of Living Systems, ALIFE 2014).

Scale-free correlations in collective motion with position-based interactions

Abstract

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Conference

Funding

ASJC Scopus subject areas

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