Who's viewed you?: the impact of feedback in a mobile location-sharing application

ABSTRACT

Feedback is viewed as an essential element of ubiquitous computing systems in the HCI literature for helping people manage their privacy. However, the success of online social networks and existing commercial systems for mobile location sharing which do not incorporate feedback would seem to call the importance of feedback into question. We investigated this issue in the context of a mobile location sharing system. Specifically, we report on the findings of a field de-ployment of Locyoution, a mobile location sharing system. In our study of 56 users, one group was given feedback in the form of a history of location requests, and a second group was given no feedback at all. Our major contribution has been to show that feedback is an important contributing factor towards improving user comfort levels and allaying privacy concerns. Participants' privacy concerns were reduced after using the mobile location sharing system. Additionally,our study suggests that peer opinion and technical savviness contribute most to whether or not participants thought they would continue to use a mobile location technology.

REFERENCES

• 1: Denise Anthony , Tristan Henderson , David Kotz, Privacy in Location-Aware Computing Environments, IEEE Pervasive Computing, v.6 n.4, p.64-72, October 2007 [doi>10.1109/MPRV.2007.83]
• 2: Louise Barkhuus , Barry Brown , Marek Bell , Scott Sherwood , Malcolm Hall , Matthew Chalmers, From awareness to repartee: sharing location within social groups, Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems, April 05-10, 2008, Florence, Italy [doi>10.1145/1357054.1357134]
• 3: L. Barkhuus and A. Dey. Location-based services for mobile telephony: a study of users' privacy concerns. In INTERACT'03, pages 702--712, 2003.
• 4: Victoria Bellotti , Abigail Sellen, Design for privacy in ubiquitous computing environments, Proceedings of the third conference on European Conference on Computer-Supported Cooperative Work, p.77-92, September 13-17, 1993, Milan, Italy
• 5: B. Brown, A. Taylor, S. Izadi, A. Sellen, J. Kaye, and R. Eardley. Location family values: A field trial of the whereabouts clock. In Ubiquitous Computing (Ubicomp '07), pages 354--371. Springer-Verlag, 2007.
• 6: B. Charny. New cell feature helps find friends, July 25 2002. http://www.news.com/2100-1033-946224.html.
• 7: Sunny Consolvo , Ian E. Smith , Tara Matthews , Anthony LaMarca , Jason Tabert , Pauline Powledge, Location disclosure to social relations: why, when, & what people want to share, Proceedings of the SIGCHI conference on Human factors in computing systems, April 02-07, 2005, Portland, Oregon, USA [doi>10.1145/1054972.1054985]
• 8: Jason Cornwell , Ian Fette , Gary Hsieh , Madhu Prabaker , Jinghai Rao , Karen Tang , Kami Vaniea , Lujo Bauer , Lorrie Cranor , Jason Hong , Bruce McLaren , Mike Reiter , Norman Sadeh, User-Controllable Security and Privacy for Pervasive Computing, Proceedings of the Eighth IEEE Workshop on Mobile Computing Systems and Applications, p.14-19, March 08-09, 2007 [doi>10.1109/HOTMOBILE.2007.21]
• 9: F. Davis, R. Bagozzi, and P. Warshaw. Extrinsic and intrinsic motivation to use computers in the workplace. Journal of Applied Social Psychology, 22:1111 -- 1132, 1992.
• 10: Thomas Erickson , Wendy A. Kellogg, Social translucence: an approach to designing systems that support social processes, ACM Transactions on Computer-Human Interaction (TOCHI), v.7 n.1, p.59-83, March 2000 [doi>10.1145/344949.345004]
• 11: Jeffrey Hightower , Anthony LaMarca , Ian E. Smith, Practical Lessons from Place Lab, IEEE Pervasive Computing, v.5 n.3, p.32-39, July 2006 [doi>10.1109/MPRV.2006.55]
• 12: L. Holson. Privacy lost: These phones can find you. New York Times, October 23 2007. http://www.nytimes.com/2007/10/23/technology/23mobile.html.
• 13: G. Hsieh, K. Tang, W. Low, and J. Hong. Field deployment of IMbuddy : A study of privacy control and feedback mechanisms for contextual IM. In Ubiquitous Computing (Ubicomp '07), pages 91--108, 2007.
• 14: S. Huang, F. Proulx, and C. Ratti. iFIND: a Peer-to-Peer application for real-time location monitoring on the MIT campus. In CUPUM 07 - 10th International Conference on Computers in Urban Planning and Urban Management, July 11-13 2007.
• 15: Giovanni Iachello , Jason Hong, End-user privacy in human-computer interaction, Foundations and Trends in Human-Computer Interaction, v.1 n.1, p.1-137, January 2007 [doi>10.1561/1100000004]
• 16: G. Iachello, I. Smith, S. Consolovo, G. Abowd, J. Hughes, J. Howard, F. Potter, J. Scott, T. Sohn, J. Hightower, and A. LaMarca. Control, deception, and communication: Evaluating the deployment of a location-enhanced messaging service. In UbiComp 2005, pages 213 -- 231. Springer-Verlag, 2005.
• 17: Giovanni Iachello , Ian Smith , Sunny Consolvo , Mike Chen , Gregory D. Abowd, Developing privacy guidelines for social location disclosure applications and services, Proceedings of the 2005 symposium on Usable privacy and security, p.65-76, July 06-08, 2005, Pittsburgh, Pennsylvania [doi>10.1145/1073001.1073008]
• 18: Iris A. Junglas , Richard T. Watson, Location-based services, Communications of the ACM, v.51 n.3, p.65-69, March 2008 [doi>10.1145/1325555.1325568]
• 20: Scott Lederer , Jennifer Mankoff , Anind K. Dey, Who wants to know what when? privacy preference determinants in ubiquitous computing, CHI '03 extended abstracts on Human factors in computing systems, April 05-10, 2003, Ft. Lauderdale, Florida, USA [doi>10.1145/765891.765952]
• 21: C. McCarthy. The mobile social: Not ready for prime time?, February 13 2008. http://www.news.com/8301-13577_3-9870611-36.html.
• 22: A. G. Miklas, K. K. Gollu, K. K. W. Chan, S. Saroiu, K. P. Gummadi, and E. de Lara. Exploiting social interactions in mobile systems. In UbiComp 2007, volume 4717/2007, pages 409--428, 2007.
• 23: Sameer Patil , Jennifer Lai, Who gets to know what when: configuring privacy permissions in an awareness application, Proceedings of the SIGCHI conference on Human factors in computing systems, April 02-07, 2005, Portland, Oregon, USA [doi>10.1145/1054972.1054987]
• 24: Mika Raento , Antti Oulasvirta , Renaud Petit , Hannu Toivonen, ContextPhone: A Prototyping Platform for Context-Aware Mobile Applications, IEEE Pervasive Computing, v.4 n.2, p.51-59, April 2005 [doi>10.1109/MPRV.2005.29]
• 25: N. Sadeh, F. Gandon, and O. B. Kwon. Ambient intelligence: The myCampus experience. Technical Report CMU-ISRI-05-123, Carnegie Mellon University, July 2005.
• 26: Norman Sadeh , Jason Hong , Lorrie Cranor , Ian Fette , Patrick Kelley , Madhu Prabaker , Jinghai Rao, Understanding and capturing people's privacy policies in a mobile social networking application, Personal and Ubiquitous Computing, v.13 n.6, p.401-412, August 2009 [doi>10.1007/s00779-008-0214-3]
• 27: I. Smith, S. Consolovo, A. LaMarca, J. Hightower, J. Scott, T. Sohn, J. Hughes, G. Iachello, and G. Abowd. Social disclosure of place: From location technology to communication practices. In Pervasive '05, pages 134 -- 151. Springer-Verlag, 2005.
• 28: S. Spiekermann. User Control in Ubiquitous Computer: Design Alternatives and User Acceptance. Shaker Verlag, 2008.
• 29: Simone Stumpf , Vidya Rajaram , Lida Li , Margaret Burnett , Thomas Dietterich , Erin Sullivan , Russell Drummond , Jonathan Herlocker, Toward harnessing user feedback for machine learning, Proceedings of the 12th international conference on Intelligent user interfaces, January 28-31, 2007, Honolulu, Hawaii, USA [doi>10.1145/1216295.1216316]
• 30: Roy Want , Andy Hopper , Veronica Falcão , Jonathan Gibbons, The active badge location system, ACM Transactions on Information Systems (TOIS), v.10 n.1, p.91-102, Jan. 1992 [doi>10.1145/128756.128759]

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)
          Subjects: User-centered design

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.3 Group and Organization Interfaces
          Subjects: Evaluation/methodology

  K. Computing Milieux
  K.4 COMPUTERS AND SOCIETY
      K.4.1 Public Policy Issues
          Subjects: Privacy

General Terms:
Human Factors

Keywords:
context-awareness, information disclosure, mobile location sharing technology, mobile social, privacy