Tagged: social networks

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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:

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Daily rhythms in mobile telephone communication

Talayeh Aledavood , Eduardo López, Sam G. B. Roberts, Felix Reed-Tsochas, Esteban Moro, Robin I. M. Dunbar, Jari Saramäki PLoS ONE 10(9), e0138098 [LINK] Summary: Circadian rhythms are known to be important drivers of human activity and the recent availability of electronic records of human behaviour has provided fine-grained data of temporal patterns of activity on a large scale. Further, questionnaire studies...

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Social media fingerprints of unemployment

Alejandro Llorente, Manuel García-Herránz, Manuel Cebrián and Esteban Moro (2014), PLoS ONE 10(5): e0128692 [LINK] Summary: Publicly available social media data can be used to quantify deviations from typical patterns of behavior and uncover how these deviations signal the socio-economical status of regions. Using data from geolocalized Twitter messages, we find that unemployment is correlated with technology adoption, daily activity, diversity in...

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Performance of Social Network Sensors During Hurricane Sandy

Yury Kryvasheyeu, Haohui Chen, Esteban Moro, Pascal Van Hentenryck, Manuel Cebrian PLoS ONE 10(2): e0117288 (2015) [link] Abstract Information flow during catastrophic events is a critical aspect of disaster management. Modern communication platforms, in particular online social networks, provide an opportunity to study such flow, and a mean to derive early-warning sensors, improving emergency preparedness and response. Performance of the...

Temporal network of information diffusion in Twitter 12

Temporal network of information diffusion in Twitter

Millions of tweets, retweets and mentions are exchanged in Twitter everyday about very different subjects, events, opinions, etc. While aggregating this data over a time window might help to understand some properties of those processes in online social networks, the speed of information diffusion around particular time-bound events requires a temporal analysis of them. To show that (and with the...