Smallworlds: visualizing social recommendations

  • Authors:
  • Brynjar Gretarsson;John O'Donovan;Svetlin Bostandjiev;Christopher Hall;Tobias Höllererk

  • Affiliations:
  • Department of Computer Science, University of California, Santa Barbara;Department of Computer Science, University of California, Santa Barbara;Department of Computer Science, University of California, Santa Barbara;Department of Computer Science, University of California, Santa Barbara;Department of Computer Science, University of California, Santa Barbara

  • Venue:
  • EuroVis'10 Proceedings of the 12th Eurographics / IEEE - VGTC conference on Visualization
  • Year:
  • 2010

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Abstract

We present SmallWorlds, a visual interactive graph-based interface that allows users to specify, refine and build item-preference profiles in a variety of domains. The interface facilitates expressions of taste through simple graph interactions and these preferences are used to compute personalized, fully transparent item recommendations for a target user. Predictions are based on a collaborative analysis of preference data from a user's direct peer group on a social network. We find that in addition to receiving transparent and accurate item recommendations, users also learn a wealth of information about the preferences of their peers through interaction with our visualization. Such information is not easily discoverable in traditional text based interfaces. A detailed analysis of our design choices for visual layout, interaction and prediction techniques is presented. Our evaluations discuss results from a user study in which SmallWorlds was deployed as an interactive recommender system on Facebook.