Rhythm and randomness in human contact

There is substantial interest in the effect of human mobility patterns on opportunistic communications. Inspired by recent work revisiting some of the early evidence for a L'evy flight foraging strategy in animals, we analyse datasets on human contact from real world traces. By analysing the distribution of inter-contact times on different time scales and using different graphical forms, we find not only the highly skewed distributions of waiting times highlighted in previous studies but also clear circadian rhythm. The relative visibility of these two components depends strongly on which graphical form is adopted and the range of time scales. We use a simple model to reconstruct the observed behaviour and discuss the implications of this for forwarding efficiency.

Details

Publication status:
Published
Author(s):
Authors: Freeman, Mervyn P. ORCIDORCID record for Mervyn P. Freeman, Watkins, Nicholas W., Yoneki, Eiko, Crowcroft, Jon

On this site: Mervyn Freeman
Date:
1 January, 2010
Journal/Source:
2010 International Conference on Advances in Social Networks Analysis and Mining / 2010 Internation
Page(s):
184-191
Digital Object Identifier (DOI):
https://doi.org/10.1109/ASONAM.2010.57