Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Melillo, Stefania"'
Autor:
Cavagna, Andrea, Di Carlo, Luca, Giardina, Irene, Grigera, Tomas S., Melillo, Stefania, Parisi, Leonardo, Pisegna, Giulia, Scandolo, Mattia
Publikováno v:
Nat. Phys. 19, 1043-1049 (2023)
The dynamical critical exponent $z$ of natural swarms of insects is calculated using the renormalization group to order $\epsilon = 4-d$. A novel fixed point emerges, where both activity and inertia are relevant. In three dimensions the critical expo
Externí odkaz:
http://arxiv.org/abs/2107.04432
Autor:
Cavagna, Andrea, Feng, Xiao, Melillo, Stefania, Parisi, Leonardo, Postiglione, Lorena, Villegas, Pablo
Publikováno v:
IEEE Trans. Instrum. Meas. 70: 1-16 (2021)
Motivated by the theoretical interest in reconstructing long 3D trajectories of individual birds in large flocks, we developed CoMo, a co-moving camera system of two synchronized high speed cameras coupled with rotational stages, which allow us to dy
Externí odkaz:
http://arxiv.org/abs/2101.10775
Autor:
Cavagna, Andrea, Culla, Antonio, Feng, Xiao, Giardina, Irene, Grigera, Tomás S., Kion-Crosby, Willow, Melillo, Stefania, Pisegna, Giulia, Postiglione, Lorena, Villegas, Pablo
Publikováno v:
Nature Communications 13, 2315 (2022)
Speed fluctuations of individual birds in natural flocks are moderate, due to the aerodynamic and biomechanical constraints of flight. Yet the spatial correlations of such fluctuations are scale-free, namely they have a range as wide as the entire gr
Externí odkaz:
http://arxiv.org/abs/2101.09748
The reconstruction of a scene via a stereo-camera system is a two-steps process, where at first images from different cameras are matched to identify the set of point-to-point correspondences that then will actually be reconstructed in the three dime
Externí odkaz:
http://arxiv.org/abs/2101.05725
Any 3D tracking algorithm has to deal with occlusions: multiple targets get so close to each other that the loss of their identities becomes likely. In the best case scenario, trajectories are interrupted, thus curbing the completeness of the data-se
Externí odkaz:
http://arxiv.org/abs/1802.05878
Autor:
Cavagna, Andrea, Cencini, Massimo, Melillo, Stefania, Parisi, Leonardo, Piergentili, Fabrizio, Santoni, Fabio, Sozza, Alessandro
Publikováno v:
In Acta Astronautica January 2022 190:273-282
Autor:
Cavagna, Andrea, Conti, Daniele, Giardina, Irene, Grigera, Tomas S., Melillo, Stefania, Viale, Massimiliano
Information transfer is an essential factor in determining the robustness of collective behaviour in biological systems with distributed control. The most direct way to study the information transfer mechanisms is to experimentally detect the propaga
Externí odkaz:
http://arxiv.org/abs/1605.09628
Autor:
Mora, Thierry, Walczak, Aleksandra M., Del Castello, Lorenzo, Ginelli, Francesco, Melillo, Stefania, Parisi, Leonardo, Viale, Massimiliano, Cavagna, Andrea, Giardina, Irene
Publikováno v:
Nature Physics 12, 1153-1157 (2016)
The correlated motion of flocks is an instance of global order emerging from local interactions. An essential difference with analogous ferromagnetic systems is that flocks are active: animals move relative to each other, dynamically rearranging thei
Externí odkaz:
http://arxiv.org/abs/1511.01958
Autor:
Cavagna, Andrea, Creato, Chiara, Del Castello, Lorenzo, Melillo, Stefania, Parisi, Leonardo, Viale, Massimiliano
The interest in 3D dynamical tracking is growing in fields such as robotics, biology and fluid dynamics. Recently, a major source of progress in 3D tracking has been the study of collective behaviour in biological systems, where the trajectories of i
Externí odkaz:
http://arxiv.org/abs/1511.01293
Autor:
Cavagna, Andrea, Creato, Chiara, Del Castello, Lorenzo, Giardina, Irene, Melillo, Stefania, Parisi, Leonardo, Viale, Massimiliano
Three-dimensional tracking of animal systems is the key to the comprehension of collective behavior. Experimental data collected via a stereo camera system allow the reconstruction of the 3d trajectories of each individual in the group. Trajectories
Externí odkaz:
http://arxiv.org/abs/1510.01070