Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
Photos for information: a field study of cameraphone computer vision interactions in tourism
CHI '08 Extended Abstracts on Human Factors in Computing Systems
Micro-Blog: sharing and querying content through mobile phones and social participation
Proceedings of the 6th international conference on Mobile systems, applications, and services
Color match: an imaging based mobile cosmetics advisory service
Proceedings of the 10th international conference on Human computer interaction with mobile devices and services
The design space of ubiquitous product recommendation systems
Proceedings of the 8th International Conference on Mobile and Ubiquitous Multimedia
Toward trustworthy mobile sensing
Proceedings of the Eleventh Workshop on Mobile Computing Systems & Applications
PRISM: platform for remote sensing using smartphones
Proceedings of the 8th international conference on Mobile systems, applications, and services
Examining micro-payments for participatory sensing data collections
Proceedings of the 12th ACM international conference on Ubiquitous computing
A survey on privacy in mobile participatory sensing applications
Journal of Systems and Software
Connecting your mobile shopping cart to the internet-of-things
DAIS'12 Proceedings of the 12th IFIP WG 6.1 international conference on Distributed Applications and Interoperable Systems
A framework to promote user engagement in participatory sensing applications
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Towards a generic framework for trustworthy spatial crowdsourcing
Proceedings of the 12th International ACM Workshop on Data Engineering for Wireless and Mobile Acess
Understanding the coverage and scalability of place-centric crowdsensing
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
Proceedings of the third ACM international symposium on Design and analysis of intelligent vehicular networks and applications
Participatory sensing for fighting food deserts
BodyNets '13 Proceedings of the 8th International Conference on Body Area Networks
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Many consumers are misled into paying high prices due to the search costs associated with attaining price information [16]. The popularity of bargain-hunting web sites like Slickdeals.net, which boasts 2.5 million visitors per month, hints that many shoppers are indeed in search of tools to help them save money. We present LiveCompare, a system that leverages the ubiquity of mobile camera phones to allow for grocery bargain hunting through participatory sensing. We utilize two-dimensional barcode decoding to automatically identify grocery products, as well as localization techniques to automatically pinpoint store locations. We show that an incentive scheme is inherently ingrained into our query/response protocol, and we suggest self-regulating mechanisms for preserving data integrity. As a result, we demonstrate that money-saving price comparisons can be conducted among brick and mortar grocery stores without the explicit cooperation of the stores.