Abstract
Methods and technologies exist to capture a sharp digital reflection of a city and to track its evolution with a decreasing delay, but decision makers will not benefit from our ability to feel the pulse of a city unless we provide them with tools to visually perceive emerging patterns and observe their dynamics. This keynote reports on a two year long experience in feeling the pulse of Milan with CitySensing. This system–developed by Politecnico di Milano and Telecom Italia–allows fusing and visually making sense of social media streams and privacy-preserving aggregates of Call Data Records. The effectiveness of CitySensing was demonstrated during Milan Design Week 2013 and 2014 by realising a visual analytics dashboard for event managers and a public storytelling installation.
Notes
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The Milan Design Week is a city-scale event held yearly in Milan. It features around 1,200 events in more than 500 places spread across the city and it attracts about half a million people from all over the world.
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The vocabulary actually contains more terms, e.g., Grid and Cell, but in this short description we preferred a simplified description where the term Pixel is often used instead of Cell. We invite interested readers to check out [2] for more details.
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4 frames per hour X 24Â h X 2 (working and weed-end days) X 10.000 pixels.
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Interested readers are invited to see the YouTube video http://youtu.be/MOBie09NHxM and to visit the page http://citysensing.fuorisalone.it.
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Acknowledgments
This work is partially funded by the SKIL Lab of Telecom Italia, the EIT Digital project City Data Fusion for Event Management (13119, 14189) and the IBM Faculty Award 2013 granted to prof. E. Della Valle. We also would like to thank Matteo Azzi, Fabrizio Antonelli, Paolo Ciuccarelli, Christian Marazzi, and Roberto Larcher who worked at the CitySensing project.
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Valle, E.D., Balduini, M. (2015). Listening to and Visualising the Pulse of Our Cities Using Social Media and Call Data Records. In: Abramowicz, W. (eds) Business Information Systems Workshops. BIS 2015. Lecture Notes in Business Information Processing, vol 228. Springer, Cham. https://doi.org/10.1007/978-3-319-26762-3_1
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