Dear survey-taker,

This survey examines the use of an optimal Privacy Enhancement Technique (PET) based solution to avoid unnecessary infringement of privacy for mobile phone users. The three location-based service domains focused on the survey are E-911, M-SNS (Mobile Social Networking Service), and TA (Targeted Advertising). Please reply to the following questions on the succeeding page accordingly.

In case you are intrigued by our survey or have some suggestions, please send an e-mail to nipungupta@cmu.edu or charlespaguio@cmu.edu

Thank you for your time!

With regards,

Nipun Gupta, Charles Paguio
Graduate Students
Carnegie Mellon CyLab Japan

PS: Average survey completion time = 10 minutes