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» A study on the value of location privacy
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SOUPS
2010
ACM
13 years 11 months ago
Towards understanding ATM security: a field study of real world ATM use
With the increase of automated teller machine (ATM) frauds, new authentication mechanisms are developed to overcome security problems of personal identification numbers (PIN). Th...
Alexander De Luca, Marc Langheinrich, Heinrich Hus...
CHI
2008
ACM
14 years 8 months ago
Accountabilities of presence: reframing location-based systems
How do mobility and presence feature as aspects of social life? Using a case study of paroled offenders tracked via Global Positioning System (GPS), we explore the ways that locat...
Emily Troshynski, Charlotte P. Lee, Paul Dourish
BCSHCI
2008
13 years 9 months ago
The roles of time, place, value and relationships in collocated photo sharing with camera phones
Photo sharing on camera phones is becoming a common way to maintain closeness and relationships with friends and family. How people share their photos in collocated settings using...
Hanna Stelmaszewska, Bob Fields, Ann Blandford
MOBISYS
2004
ACM
14 years 7 months ago
Tracking Moving Devices with the Cricket Location System
We study the problem of tracking a moving device under two indoor location architectures: an active mobile architecture and a passive mobile architecture. In the former, the infra...
Adam Smith, Hari Balakrishnan, Michel Goraczko, Ni...
PODC
2005
ACM
14 years 1 months ago
Facility location: distributed approximation
In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of...
Thomas Moscibroda, Roger Wattenhofer