Identifying the Most Influential Data Objects with Reverse Top-k Queries

  title={Identifying the Most Influential Data Objects with Reverse Top-k Queries},
  author={Akrivi Vlachou and Christos Doulkeridis and Kjetil N\orv{\aa}g and Yannis Kotidis},
Top-k queries are widely applied for retrieving a ranked set of the k most interesting objects based on the individual user preferences. As an example, in online marketplaces, customers (users) typically seek a ranked set of products (objects) that satisfy their needs. Reversing topk queries leads to a query type that instead returns the set of customers that find a product appealing (it belongs to the top-k result set of their preferences). In this paper, we address the challenging problem of… CONTINUE READING
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