Category: Publications

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Weather impacts expressed sentiment

Patrick Baylis, Nick Obradovich, Yury Kryvasheyeu, Haohui Chen, Lorenzo Coviello, Esteban Moro, Manuel Cebrian, James H. Fowler PLoS ONE 13(4): e0195750 (2018) [LINK] Abstract:  We conduct the largest ever investigation into the relationship between meteorological con- ditions and the sentiment of human expressions. To do this, we employ over three and a half billion social media posts from tens of millions of individuals from both Facebook and...

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MemeSequencer: Sparse Matching for Embedding Image Macros

Abhimanyu Dubey, Esteban Moro, Manuel Cebrian, Iyad Rahwan WWW’18 Proceedings of the Web Conference 2018 [LINK] Abstract: The analysis of the creation, mutation, and propagation of social media content on the Internet is an essential problem in computational social science, affecting areas ranging from marketing to political mobilization. A first step towards understanding the evolution of images online is the analysis of...

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Temporal patterns behind the strength of persistent ties

Henry Navarro, Giovanna Miritello, Arturo Canales, Esteban Moro EPJ Data Science (2017) 6:31 [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 social media platforms for disaster-related communication and information. Social media improves situational...

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Twitter Session Analytics: Profiling Users’ Short-Term Behavioral Changes

Farshad Kooti, Esteban Moro, and Kristina Lerman Proceedings of SocInfo 2016 [LINK] [PDF] Summary: Human behavior shows strong daily, weekly, and monthly patterns. In this work, we demonstrate online behavioral changes that occur on a much smaller time scale: minutes, rather than days or weeks. Specifically, we study how people distribute their effort over different tasks during periods of activity on the...

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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...

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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...