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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:IC Colloquium : Social communities and mobile phone communication 
 networks
DTSTART:20121206T163000
DTEND:20121206T173000
DTSTAMP:20260924T120605Z
UID:f60c114a9bd4b3e4f6474c66b2608e14683ed9834375229d6eaaac03
CATEGORIES:Conferences - Seminars
DESCRIPTION:Vincent Blondel\, University of Louvain (Belgium) and Massachu
 setts Institute of Technology\nAbstract\nWe describe several recent result
 s on large network analysis with a special emphasis on community detection
  and on the analysis of mobile phone datasets. In particular\, we describe
  two simple and efficient methods - the "Louvain method" and the recent Pa
 rtition-Merge method - for the detection of communities. Partition-Merge i
 s a general and versatile method that allows to turn any existing centrali
 zed algorithm for graph computation distributed while keeping accuracy gua
 rantees. The Louvain method - now used byLinkedIn for its visualization ap
 plication InMaps - has sub-quadratic computational complexity and can be r
 outinely used for analyzing networks with billions of nodes or links. We a
 nalyze communities obtained on a nationwide dataset of criminal records\, 
 as well as on a social network constructed from mobile phone communication
 s in Belgium and in France on periods covering several months. In the late
 r we observe a gravitational law of social interaction as well as spatiall
 y distributed social structures that have potential political implication.
 \nWe finally describe applications of mobile phone dataset analysis for a 
 range of applications such as urban planning\, traffic optimization\, moni
 toring of development policy\, crisis management\, and control of epidemic
 s. With these applications in mind we overview the ongoing "Data for Devel
 opment" (D4D) challenge (http://www.d4d.orange.com/) organized jointly wit
 h Orange on the analysis of mobile phone datasets from an African country 
 and for development purposes. So far the D4D challenge has attracted proje
 cts by more than 200 research groups.\n\nBiography \nVincent D. Blondel i
 s professor of applied mathematics at the University of Louvain (Belgium) 
 were he has been department head for close to a decade. He is also affilia
 ted with the Massachusetts Institute of Technology (Cambridge\, USA) where
  he was a visiting professor and Fulbright scholar in 2004-2005 and again 
 in 2010-2011. In 2012-2013 he is the Kokotovic Distinguished Visiting Prof
 essor at the University of California (Santa Barbara). Vincent has also he
 ld various positions with the University of Oxford\, the Australian Nation
 al University and the Santa Fe Institute. He has directed more than thirty
  PhD and Master thesis and is the recipient of several international prize
 s for research done in mathematical control theory\, theoretical computer 
 science and network science. Vincent is the coordinator a national researc
 h network between 200+ researchers in systems\, optimization and control i
 n Belgium\, Princeton and Stanford and he is the Belgian coordinator of th
 e mammoth one billion dollars EU research Flagship proposal FuturICT. His 
 work has been widely featured\, including in Wired\, Technology Review\, L
 e Monde\, Der Spiegel and The New York Times.
LOCATION:BC 420 https://plan.epfl.ch/?room==BC%20420
STATUS:CONFIRMED
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