J. J. Ramasco

Publications
Influence

Finding Statistically Significant Communities in Networks

Andrea Lancichinetti, Filippo Radicchi, J. J. Ramasco, S. Fortunato
Physics, Medicine
PloS one
10 December 2010

We present OSLOM (Order Statistics Local Optimization Method), the first method capable to detect clusters in networks accounting for edge directions, edge weights, overlapping communities, hierarchies and community dynamics. Expand

Multiscale mobility networks and the spatial spreading of infectious diseases

D. Balcan, V. Colizza, B. Gonçalves, H. Hu, J. J. Ramasco, Alessandro Vespignani
Geography, Computer Science
Proceedings of the National Academy of Sciences
20 July 2009

We analyze mobility data from 29 countries around the world and find a gravity model able to provide a global description of commuting patterns up to 300 kms and (ii) integrate in a worldwide-structured metapopulation epidemic model. Expand

Dynamical classes of collective attention in twitter

J. Lehmann, B. Gonçalves, J. J. Ramasco, C. Cattuto
Computer Science, Physics
WWW
8 November 2011

We analyze a large-scale record of Twitter activity and find that the evolution of hashtag popularity over time defines discrete classes of hashtags. Expand

Seasonal transmission potential and activity peaks of the new influenza A(H1N1): a Monte Carlo likelihood analysis based on human mobility

D. Balcan, H. Hu, +9 authors Alessandro Vespignani
Medicine, Biology
BMC medicine
10 September 2009

BackgroundOn 11 June the World Health Organization officially raised the phase of pandemic alert (with regard to the new H1N1 influenza strain) to level 6. As of 19 July, 137,232 cases of the H1N1… Expand

Human mobility: Models and applications

Hugo Barbosa-Filho, M. Barthelemy, +7 authors Marcello Tomasini
Physics
29 September 2017

Recent years have witnessed an explosion of extensive geolocated datasets related to human movement, enabling scientists to quantitatively study individual and collective mobility patterns, and to… Expand

Prominence and control: the weighted rich-club effect.

T. Opsahl, V. Colizza, P. Panzarasa, J. J. Ramasco
Computer Science, Physics
Physical review letters
2 April 2008

We propose a framework for studying the tendency of prominent elements to form clubs with exclusive control over the majority of a system's resources. Expand

From mobile phone data to the spatial structure of cities

Thomas Louail, M. Lenormand, +5 authors M. Barthelemy
Geography, Physics
Scientific reports
18 January 2014

Pervasive infrastructures, such as cell phone networks, enable to capture large amounts of human behavioral data but also provide information about the structure of cities and their dynamical… Expand

Modeling the spatial spread of infectious diseases: The GLobal Epidemic and Mobility computational model

D. Balcan, B. Gonçalves, H. Hu, J. J. Ramasco, V. Colizza, Alessandro Vespignani
Computer Science, Medicine
J. Comput. Sci.
1 August 2010

We present the Global Epidemic and Mobility (GLEaM) model that integrates sociodemographic and population mobility data in a spatially structured stochastic disease approach to simulate the spread of epidemics at the worldwide scale. Expand

Human Mobility Networks, Travel Restrictions, and the Global Spread of 2009 H1N1 Pandemic

P. Bajardi, C. Poletto, J. J. Ramasco, M. Tizzoni, V. Colizza, Alessandro Vespignani
Biology, Medicine
PloS one
31 January 2011

After the emergence of the H1N1 influenza in 2009, some countries responded with travel-related controls during the early stage of the outbreak in an attempt to contain or slow down its international… Expand

Social Features of Online Networks: The Strength of Intermediary Ties in Online Social Media

P. A. Grabowicz, J. J. Ramasco, E. Moro, J. M. Pujol, V. M. Eguíluz
Business, Physics
PloS one
20 July 2011

An increasing fraction of today's social interactions occur using online social media as communication channels. Expand

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