Category: Science


Rapid assessment of disaster damage using social media activity

Yury Kryvasheyeu1, Haohui Chen, Nick Obradovich, Esteban Moro, Pascal Van Hentenryck, James Fowler and Manuel Cebrian, Science Advances  11 Mar 2016: Vol. 2, no. 3, e1500779 [LINK] Summary: Could social media data aid in disaster response and damage assessment? Countries face both an increasing frequency and an increasing intensity of natural disasters resulting from climate change. During such events, citizens turn to...


Searching for someone

From the “Small World Experiment” to the “Red Balloon Challenge,” and beyond We live in a small world, right? But the cost and fragility of navigating it could harm any potential strategy to leverage the power of social networks. Read this fascinating story of the research, experiments, and failures in the quest for using social networks to search information/people:


More people, more fun: The scaling of events in cities

  This is a recent article publish in by David Martín-Corral, Manuel Cebrián and myself in which we analyze the super-scaling of touristic attraction (number of events) with population. Amazingly we found that the number of events (music/theater/sports/etc.) scales super-linearly with the population of the city. So yes! more people means more fun!  


2015 year in review

2015 has been an amazing year both on the professional and personal grounds. Here are some of the main things that happened this year: I helped to build up the “Master in Data Science and Big Data in Finance” at the Afi School of Finance. In this first edition we had 18 incredible students and the support from most of the big...


Fully nonlinear dynamics of stochastic thin-film dewetting

S. Nesic, R. Cuerno, E. Moro, and L. Kondic Physical Review E 92, 061002(R) [LINK] [PDF] Summary: The spontaneous formation of droplets via dewetting of a thin fluid film from a solid substrate allows materials nanostructuring. Often, it is crucial to be able to control the evolution, and to produce patterns characterized by regularly spaced droplets. While thermal fluctuations are expected to...


Temporal networks with R and igraph (updated)

A while ago, I wrote a post about how to create animations of temporal networks using R and the amazing package igraph package. The post was written in 2012 and the code does not work with the most recent versions (1.0) of igraph. Here I revisited that post, improving its performance and also making it consistent with the new versions of...