Dynamics of Person-to-Person Interactions from Distributed RFID Sensor Networks. Cattuto, C., family=Broeck , g. V., Barrat, A., Colizza, V., Pinton, J., & Vespignani, A. 5(7):e11596.
Dynamics of Person-to-Person Interactions from Distributed RFID Sensor Networks [link]Paper  doi  abstract   bibtex   
Background Digital networks, mobile devices, and the possibility of mining the ever-increasing amount of digital traces that we leave behind in our daily activities are changing the way we can approach the study of human and social interactions. Large-scale datasets, however, are mostly available for collective and statistical behaviors, at coarse granularities, while high-resolution data on person-to-person interactions are generally limited to relatively small groups of individuals. Here we present a scalable experimental framework for gathering real-time data resolving face-to-face social interactions with tunable spatial and temporal granularities. Methods and Findings We use active Radio Frequency Identification (RFID) devices that assess mutual proximity in a distributed fashion by exchanging low-power radio packets. We analyze the dynamics of person-to-person interaction networks obtained in three high-resolution experiments carried out at different orders of magnitude in community size. The data sets exhibit common statistical properties and lack of a characteristic time scale from 20 seconds to several hours. The association between the number of connections and their duration shows an interesting super-linear behavior, which indicates the possibility of defining super-connectors both in the number and intensity of connections. Conclusions Taking advantage of scalability and resolution, this experimental framework allows the monitoring of social interactions, uncovering similarities in the way individuals interact in different contexts, and identifying patterns of super-connector behavior in the community. These results could impact our understanding of all phenomena driven by face-to-face interactions, such as the spreading of transmissible infectious diseases and information.
@article{cattutoDynamicsPersontoPersonInteractions2010,
  langid = {english},
  title = {Dynamics of {{Person}}-to-{{Person Interactions}} from {{Distributed RFID Sensor Networks}}},
  volume = {5},
  issn = {1932-6203},
  url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0011596},
  doi = {10.1371/journal.pone.0011596},
  abstract = {Background Digital networks, mobile devices, and the possibility of mining the ever-increasing amount of digital traces that we leave behind in our daily activities are changing the way we can approach the study of human and social interactions. Large-scale datasets, however, are mostly available for collective and statistical behaviors, at coarse granularities, while high-resolution data on person-to-person interactions are generally limited to relatively small groups of individuals. Here we present a scalable experimental framework for gathering real-time data resolving face-to-face social interactions with tunable spatial and temporal granularities. Methods and Findings We use active Radio Frequency Identification (RFID) devices that assess mutual proximity in a distributed fashion by exchanging low-power radio packets. We analyze the dynamics of person-to-person interaction networks obtained in three high-resolution experiments carried out at different orders of magnitude in community size. The data sets exhibit common statistical properties and lack of a characteristic time scale from 20 seconds to several hours. The association between the number of connections and their duration shows an interesting super-linear behavior, which indicates the possibility of defining super-connectors both in the number and intensity of connections. Conclusions Taking advantage of scalability and resolution, this experimental framework allows the monitoring of social interactions, uncovering similarities in the way individuals interact in different contexts, and identifying patterns of super-connector behavior in the community. These results could impact our understanding of all phenomena driven by face-to-face interactions, such as the spreading of transmissible infectious diseases and information.},
  number = {7},
  journaltitle = {PLOS ONE},
  shortjournal = {PLOS ONE},
  urldate = {2018-09-07},
  date = {2010-07-15},
  pages = {e11596},
  keywords = {Computer networks,Behavior,Behavioral geography,Human mobility,Probability distribution,Radio waves,Statistical data,Statistical distributions},
  author = {Cattuto, Ciro and family=Broeck, given=Wouter Van, prefix=den, useprefix=false and Barrat, Alain and Colizza, Vittoria and Pinton, Jean-François and Vespignani, Alessandro},
  file = {/home/dimitri/Nextcloud/Zotero/storage/GFAHQ6F2/Cattuto et al. - 2010 - Dynamics of Person-to-Person Interactions from Dis.pdf;/home/dimitri/Nextcloud/Zotero/storage/67R2UX2N/article.html}
}
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