Title
PrIA: A Private Intelligent Assistant.
Abstract
Personalized services such as news recommendations are becoming an integral part of our digital lives. The problem is that they extract a steep cost in terms of privacy. The service providers collect and analyze user's personal data to provide the service, but can infer sensitive information about the user in the process. In this work we ask the question \"How can we provide personalized news recommendation without sharing sensitive data with the provider?\" We propose a local private intelligence assistance framework (PrIA), which collects user data and builds a profile about the user and provides recommendations, all on the user's personal device. It decouples aggregation and personalization: it uses the existing aggregation services on the cloud to obtain candidate articles but makes the personalized recommendations locally. Our proof-of-concept implementation and small scale user study shows the feasibility of a local news recommendation system. In building a private profile, PrIA avoids sharing sensitive information with the cloud-based recommendation service. However, the trade-off is that unlike cloud-based services, PrIA cannot leverage collective knowledge from large number of users. We quantify this trade-off by comparing PrIA with Google's cloud-based recommendation service. We find that the average precision of PrIA's recommendation is only 14% lower than that of Google's service. Rather than choose between privacy or personalization, this result motivates further study of systems that can provide both with acceptable trade-offs.
Year
DOI
Venue
2017
10.1145/3032970.3032988
HotMobile
Field
DocType
Citations 
Recommender system,Internet privacy,World Wide Web,Leverage (finance),Ask price,Collective intelligence,Computer science,Service provider,Information sensitivity,Cloud computing,Personalization
Conference
1
PageRank 
References 
Authors
0.35
10
5
Name
Order
Citations
PageRank
Shashank Jain110.35
Vivek Tiwari22971391.08
Aruna Balasubramanian33034168.83
Niranjan Balasubramanian486255.98
Supriyo Chakraborty532326.02