An architecture for privacy-sensitive ubiquitous computing
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Context-aware telephony: privacy preferences and sharing patterns
CSCW '06 Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work
Using visualizations to increase compliance in experience sampling
UbiComp '08 Proceedings of the 10th international conference on Ubiquitous computing
User-controllable learning of security and privacy policies
Proceedings of the 1st ACM workshop on Workshop on AISec
Who's viewed you?: the impact of feedback in a mobile location-sharing application
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Hide and seek: location sharing practices with social media
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
Capturing location-privacy preferences: quantifying accuracy and user-burden tradeoffs
Personal and Ubiquitous Computing
Footprint tracker: supporting diary studies with lifelogging
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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This paper presents a study of the effect of one instance of contextual cues, trajectory reminders, on the recollection of location sharing preferences elicited using a retrospective protocol. Trajectory reminders are user interface elements that indicate for a particular location of a person's trail across a city the locations visited before and after. The results of the study show that reminding users where they have been before and after a specific visited location can elicit more consistent responses in terms of stated location sharing preferences for that location visit. This paper argues that trajectory reminders are useful when collecting preference data with retrospective protocols because they can improve the quality of the collected data.