Where You Go Reveals Who You Know: Analyzing Social Ties from Millions of Footprints

@inproceedings{Hsieh2015WhereYG,
  title={Where You Go Reveals Who You Know: Analyzing Social Ties from Millions of Footprints},
  author={Hsun-Ping Hsieh and Rui Yan and Cheng-Te Li},
  booktitle={CIKM},
  year={2015}
}
This paper aims to investigate how the geographical footprints of users correlate to their social ties. While conventional wisdom told us that the more frequently two users co-locate in geography, the higher probability they are friends, we find that in real geo-social data, Gowalla and Meetup, almost all of the user pairs with friendships had never met geographically. In this sense, can we discover social ties among users purely using their geographical footprints even if they never met? To… CONTINUE READING

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