In most natural and engineered systems, a set of entities interact with each other in
complicated patterns that can encompass multiple types of relationships, change in time and …

Action to tackle the complex and divisive issue of climate change will be strongly influenced
by public perception. Online social media and associated social networks are an …

The large availability of user provided contents on online social media facilitates people
aggregation around shared beliefs, interests, worldviews and narratives. In spite of the …

Tweets and the Streets analyses the culture of the new protest movements of the 21st
century. From the Arab Spring to the'indignados' protests in Spain and the Occupy …

How does network structure affect diffusion? Recent studies suggest that the answer
depends on the type of contagion. Complex contagions, unlike infectious diseases (simple …

This article explores the growth of online mobilizations using data from the indignados
(outraged) movement in Spain, which emerged under the influence of the revolution in Egypt …

We analyze the communication network that emerged in social media around an
international protest campaign launched in May 2012. Applying insights from network …

Large scale analysis and statistics of socio-technical systems that just a few short years ago
would have required the use of consistent economic and human resources can nowadays …

The inner dynamics of the multiple actors of the informations systems–ie, TV, newspapers,
blogs, social network platforms,–play a fundamental role on the evolution of the public …

An increasing fraction of today's social interactions occur using online social media as
communication channels. Recent worldwide events, such as social movements in Spain or …