Deep dive into social network and economic data : a data driven approach for uncovering temporal ties, human mobility, and socioeconomic correlations

Yannick Leo 1, 2
2 DANTE - Dynamic Networks : Temporal and Structural Capture Approach
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme, IXXI - Institut Rhône-Alpin des systèmes complexes
Abstract : In this thesis, I have carried out data-driven studies based on rich, large-scale combined data sets including social links between users (calls and SMS), their demographic parameters (age and gender), their mobility and their economic information such as income and spendings. These seven studies bring insights in network science but also in sociology, economy and geography. The questions asked are very diversified. How can one quantify the loss of temporal information caused by the aggregation of link streams into series of graphs? How can one infer mobility of a user from his or her localisations of calls? Is it possible to transmit SMS in a dense region by using the density of phones, the mobility of users and the locality of the messages? How can one quantify and prove empirically the social stratification of the society at a large population scale? I present, for this last question, a first socio-economic study with a data-driven approach. It has been possible to study, at a very large scale, the stratification of the society, the existence of "rich-clubs", the spatial segregation and purchase patterns for each social class. Beyond the variety of studies and their numerous applications, this thesis shows that the analysis of individual rich combined datasets at a large population scale gives the opportunity to answer long-standing hypotheses and to address novel questions. This work not only points out the potentiality of Big Data approach but also its complementarity to classical approaches (modelization, surveys, …). Particular attention was given in order to explain each steps that lead to results and to take into account biases which is too often neglected.
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Yannick Leo. Deep dive into social network and economic data : a data driven approach for uncovering temporal ties, human mobility, and socioeconomic correlations. Networking and Internet Architecture [cs.NI]. Université de Lyon, 2016. English. ⟨NNT : 2016LYSEN066⟩. ⟨tel-01429593v2⟩

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