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arXiv · 2008.02919

Can Smartphone Co-locations Detect Friendship? It Depends How You Model It

Momin M. Malik·Afsaneh Doryab·Michael Merrill·Jürgen Pfeffer·Anind K. Dey
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Abstract

We present a study to detect friendship, its strength, and its change from smartphone location data collectedamong members of a fraternity. We extract a rich set of co-location features and build classifiers that detectfriendships and close friendship at 30% above a random baseline. We design cross-validation schema to testour model performance in specific application settings, finding it robust to seeing new dyads and to temporalvariance.

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Momin M. Malik, Afsaneh Doryab, Michael Merrill, Jürgen Pfeffer, Anind K. Dey. 2020-08-31. Can Smartphone Co-locations Detect Friendship? It Depends How You Model It. https://arxiv.org/abs/2008.02919

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