Spatiotemporal correlations of handset-based service usages

Details Spatiotemporal correlations of handset-based service usages Spatiotemporal correlations of handset-based service usages

2012-04-10

arxiv.org/abs/1204.2169v1

Physics

Physics and Society

11 pages, 13 figures

Scientific paper

We study spatiotemporal correlations and temporal inhomogeneities of handset-based service usages by analyzing a dataset collected from 124 users for over 16 months. The dataset consists of detailed information about the users' locations and service usages, including web domain visits, applications, emails, voice calls, and short message services. By analyzing the spatiotemporal trajectories of the users we detect several meaningful or contextual places for each one of them and show how the context affects the service usage patterns on the individual basis as well as at the aggregate level. In addition to service usage distributions over the contexts, we find the similarity and diversity of weekly patterns of service usages and their temporal correlations. Positive and negative correlations among services imply that services can be either complementary or substitute to each other. These results help us to understand the complexities of information and communications technology enabled human behavior.

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