Collaborative Filtering-Based Recommendation of Online Social
Voting

Introduction:
Social voting is an emerging new feature in online social networks. It poses unique challenges and opportunities for recommendation. In this paper, we develop a set of matrix factorization (MF) and nearest-neighbor (NN)-based recommender systems (RSs) that explore user social network and group affiliation information for social voting recommendation. Through experiments with real social voting traces, we demonstrate that social network and group affiliation information can significantly improve the accuracy of popularity-based voting recommendation, and social network information dominates group affiliation information in NN-based approaches. We also observe that social and group information is much more valuable to cold users than to heavy users. In our experiments, simple meta path based NN models outperform computation-intensive MF models in hot-voting recommendation, while users’ interests for non-hot votings can be better mined by MF models. We further propose a hybrid RS, bagging different single approaches to achieve the best top-k hit rate.

Reference IEEE paper:
“Collaborative Filtering-Based Recommendation of Online Social Voting”, IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS, 2017.

Unique ID -SBI1030

DomainDATA MINING

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