Making recommendations in a microblog to improve the impact of a focal user

  • Authors:
  • Shanchan Wu;Leanna Gong;William Rand;Louiqa Raschid

  • Affiliations:
  • University of Maryland, College Park, College Park , MD, USA;University of Maryland, College Park, College Park, MD, USA;University of Maryland, College Park, College Park, MD, USA;University of Maryland, College Park, College Park, MD, USA

  • Venue:
  • Proceedings of the sixth ACM conference on Recommender systems
  • Year:
  • 2012

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Abstract

We present a microblog recommendation system that can help monitor users, track conversations, and potentially improve diffusion impact. Given a Twitter network of active users and their followers, and historical activity of tweets, retweets and mentions, we build upon a prediction tool to predict the Top K users who will retweet or mention a focal user, in the future [10]. We develop personalized recommendations for each focal user. We identify characteristics of focal users such as the size of the follower network, or the level of sentiment averaged over all tweets; both have an impact on the quality of personalized recommendations. We use (high) betweenness centrality as a proxy of attractive users to target when making recommendations. Our recommendations successfully identify a greater fraction of users with higher betweenness centrality, in comparison to the overall distribution of betweenness centrality of the ground truth users for some focal user.