arXiv: Physics and Society
Papers 3304
1 page of 331 pages (3,304 results)
Published on 2019in arXiv: Physics and Society
Jerome Benoit (NYUAD: New York University Abu Dhabi), Saif Eddin Jabari6
Estimated H-index: 6
(NYU: New York University)
We investigate urban street networks as a whole within the frameworks of information physics and statistical physics. Urban street networks are envisaged as evolving social systems subject to a Boltzmann-mesoscopic entropy conservation. For self-organized urban street networks, our paradigm has already allowed us to recover the effectively observed scale-free distribution of roads and to foresee the distribution of junctions. The entropy conservation is interpreted as the conservation of the sur...
Published on Dec 1, 2019in arXiv: Physics and Society
Somaye Sheykhali (ZNU: University of Zanjan), Juan Fernández-Gracia7
Estimated H-index: 7
(CSIC: Spanish National Research Council)
+ 1 AuthorsVíctor M. Eguíluz36
Estimated H-index: 36
(CSIC: Spanish National Research Council)
We study how the community structure of bipartite mutualistic networks changes in a dynamic context. First, we consider a real mutualistic network and introduce extinction events according to several scenarios. We model extinctions as node or interaction removals. For node removal, we consider random, directed and sequential extinctions; for interaction removal, we consider random extinctions. The bipartite network reorganizes showing an increase of the effective modularity and a fast decrease o...
Published on 2019in arXiv: Physics and Society
Giuseppe Toscani40
Estimated H-index: 40
(UNIPV: University of Pavia)
We study the evolution in time of the statistical distribution of some addiction phenomena in a system of individuals. The kinetic approach leads to build up a novel class of Fokker--Planck equations describing relaxation of the probability density solution towards a generalized Gamma density. A qualitative analysis reveals that the relaxation process is very stable, and does not depend on the parameters that measure the main microscopic features of the addiction phenomenon.
Published on 2019in arXiv: Physics and Society
A. Chacoma (National University of Cordoba), Nahuel Almeira1
Estimated H-index: 1
+ 1 AuthorsOrlando V. Billoni8
Estimated H-index: 8
We propose a model to study phonetic changes as an evolutionary process driven by social interactions between two groups of individuals with different phonological systems. Particularly, we focus on the changes in the place of articulations, inspired by the drift /\textphi/\rightarrowh/ observed in some words of Latin root in the Castilian language. In the model, each agent is characterized by a variable of three states S= \{1,2,3\} representing the place of articulation used during speech...
Published on 2019in arXiv: Physics and Society
Ruda Zhang (SC: University of Southern California), Roger Ghanem48
Estimated H-index: 48
(SC: University of Southern California)
Travel decisions are fundamental to understanding human mobility, urban economy, and sustainability, but measuring it is challenging and controversial. Previous studies of taxis are limited to taxi stands or hail markets at aggregate spatial units. Here we estimate the dynamic demand and supply of taxis in New York City (NYC) at street segment level, using in-vehicle Global Positioning System (GPS) data which preserve individual privacy. To this end, we model taxi demand and supply as non-statio...
Published on 2019in arXiv: Physics and Society
Jonathan F. Donges24
Estimated H-index: 24
Jobst Heitzig15
Estimated H-index: 15
+ 7 AuthorsIlona M. Otto8
Estimated H-index: 8
Analysis of Earth system dynamics in the Anthropocene requires to explicitly take into account the increasing magnitude of processes operating in human societies, their cultures, economies and technosphere and their growing feedback entanglement with those in the physical, chemical and biological systems of the planet. However, current state-of-the-art Earth System Models do not represent dynamic human societies and their feedback interactions with the biogeophysical Earth system and macroeconom...
Published on 2019in arXiv: Physics and Society
Norihito Toyota3
Estimated H-index: 3
(Hokkaido Information University)
The evolution of cooperation among unrelated individuals in human and animal societies remains a challenging issue across disciplines. It is an important subject also in the evolutionary game theory to understand how cooperation arises. The subject has been extensively studied especially in Prisoners' dilemma game(PD) but the emergence of cooperation is also an important subject in public goods game(PGG). In this article, we consider coevolutionary PGG on complex networks where both the topology...
Published on 2019in arXiv: Physics and Society
Na Zhao6
Estimated H-index: 6
Jie Li16
Estimated H-index: 16
+ 3 AuthorsTao Zhou
Heterogeneous nature of real networks implies that different edges play different roles in network structure and functions, and thus to identify significant edges is of high value in both theoretical studies and practical applications. We propose the so-called second-order neighborhood (SN) index to quantify an edge's significance in a network. We compare SN index with many other benchmark methods based on 15 real networks via edge percolation. Results show that the proposed SN index outperforms...
Published on 2019in arXiv: Physics and Society
Sandro Claudio Lera2
Estimated H-index: 2
Alex Pentland103
Estimated H-index: 103
Didier Sornette78
Estimated H-index: 78
We develop an early-warning system for the formation of disproportional dominance in complex systems. Assuming only that the growth dynamics is, to first order, captured by proportional growth, we describe the system with fitness-adjusted preferential attachment, where the idiosyncratic system dynamics is conveniently absorbed into the fitness term. Allowing also for targeted deletion and `parametrizing' the space of fitnesses with the Beta-distribution, we derive an exact 4-dimensional phase di...
Published on 2019in arXiv: Physics and Society
Abhik Ghosh39
Estimated H-index: 39
Preety Shreya , B. Basu10
Estimated H-index: 10
In this paper we derive the maximum entropy characteristics of a particular rank order distribution, namely the discrete generalized beta distribution, which has recently been observed to be extremely useful in modelling many several rank-size distributions from different context in Arts and Sciences, as a two-parameter generalization of Zipf's law. Although it has been seen to provide excellent fits for several real world empirical datasets, the underlying theory responsible for the success of ...