Ubicomp Day 1

My pick from the first day at Ubicomp: “Rethinking Location Sharing: Exploring the Implications of Social-Driven vs. Purpose-Driven Location Sharing” (from CMU). Key idea: the rationale behind sharing location has a big impact on people willingness to share and what they share. The main distinction is between sharing for a need (purpose sharing, for example, to get phone calls redirected to where I am – like in Active Badge), versus sharing because I want (social sharing, for example to stay more connected with my friends). Their study reveals that location sharing varies a lot between the two cases (need vs want), with different labels being picked by people to describe places, and with different privacy concerns being attached to them. Another more

privacy-focused paper from the same people was also interesting (“Empirical Models of Privacy in Location Sharing“).

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