Contextual Grouping: Discovering Real-Life Interaction Types from Longitudinal Bluetooth Data

  • Authors:
  • Trinh Minh Tri Do;Daniel Gatica-Perez

  • Affiliations:
  • -;-

  • Venue:
  • MDM '11 Proceedings of the 2011 IEEE 12th International Conference on Mobile Data Management - Volume 01
  • Year:
  • 2011

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Abstract

By exploiting built-in sensors, mobile smart phone have become attractive options for large-scale sensing of human behavior as well as social interaction. In this paper, we present a new probabilistic model to analyze longitudinal dynamic social networks created by the physical proximity of people sensed continuously by the phone Bluetooth sensors. A new probabilistic model is proposed in order to jointly infer emergent grouping modes of the community together with their temporal context. We present experimental results on a Bluetooth proximity network sensed with mobile smart-phones over 9 months of continuous real-life, and show the effectiveness of our method.