Abstract
With new technology, people can share information about
everyday places they go; the resulting data helps others find
and evaluate places. Recent applications like Dodgeball
and Sharescape repurpose everyday place information:
users create local place data for personal use, and the
systems display it for public use. We explore both the
opportunities -- new local knowledge, and concerns --
privacy risks, raised by this implicit information sharing.
We conduct two empirical studies: subjects create place
data when using PlaceMail, a location-based reminder
system, and elect whether to share it on Sharescape, a
community map-building system. We contribute by: (1)
showing location-based reminders yield new local
knowledge about a variety of places, (2) identifying
heuristics people use when deciding what place-related
information to share (and their prevalence), (3) detailing
how these decision heuristics can inform local knowledge
sharing system design, and (4) identifying new uses of shared place information, notably opportunistic errand
planning.
Description
Capturing, sharing, and using local place information
Links and resources
Tags
community