User-powered recommendation system

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Date

2015-01-27

Authors

Kadangode K. Ramakrishnan
Yin Zhang
Divesh Srivastava
Tae Won Cho

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Publisher

United States Patent and Trademark Office

Abstract

Recommendation systems are widely used in Internet applications. In current recommendation systems, users only play a passive role and have limited control over the recommendation generation process. As a result, there is often considerable mismatch between the recommendations made by these systems and the actual user interests, which are fine-grained and constantly evolving. With a user-powered distributed recommendation architecture, individual users can flexibly define fine-grained communities of interest in a declarative fashion and obtain recommendations accurately tailored to their interests by aggregating opinions of users in such communities. By combining a progressive sampling technique with data perturbation methods, the recommendation system is both scalable and privacy-preserving.

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