PREFER: A System for the Efficient Execution of Multi-parametric Ranked Queries

  title={PREFER: A System for the Efficient Execution of Multi-parametric Ranked Queries},
  author={Vagelis Hristidis and Nick Koudas and Yannis Papakonstantinou},
  booktitle={SIGMOD Conference},
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operations' research and applied mathematics as well as everyday life; e.g., a buyer may select a home as a weighted function of a number of attributes like its distance from office, its price, its area, etc. We capture such queries in our definition of preference queries that use a weight function over a relation's attributes… CONTINUE READING
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