Processing a large number of continuous preference top-k queries

  title={Processing a large number of continuous preference top-k queries},
  author={Albert Yu and Pankaj K. Agarwal and Jun Yang},
  booktitle={SIGMOD Conference},
Given a set of objects, each with multiple numeric attributes, a (preference) top-k query retrieves the k objects with the highest scores according to a user preference, defined as a linear combination of attribute values. We consider the problem of processing a large number of continuous top-k queries, each with its own preference. When objects or user preferences change, the query results must be updated. We present a dynamic index that supports the reverse top k query, which is of… CONTINUE READING
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