Subscription-based data aggregation techniques for top-k monitoring queries

@article{Udomlamlert2016SubscriptionbasedDA,
  title={Subscription-based data aggregation techniques for top-k monitoring queries},
  author={Kamalas Udomlamlert and Takahiro Hara and Shojiro Nishio},
  journal={World Wide Web},
  year={2016},
  volume={20},
  pages={237-265}
}
With the increase of data generation in distributed fashions such as peer-to-peer systems and sensor networks, top-k query processing which is a way to aggregate only a small set of data that sufficiently satisfies many users’ preferences, becomes a substantial issue. When data are periodically updated in each epoch e.g., weather information, without any techniques, a naive solution is to aggregate all data and their updates to ensure the completeness of final answers, however, it is too costly… CONTINUE READING

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