Efficient top-K query calculation in distributed networks

  title={Efficient top-K query calculation in distributed networks},
  author={Pei Cao and Zhe Wang},
This paper presents a new algorithm to answer top-k queries (e.g. "find the k objects with the highest aggregate values") in a distributed network. Existing algorithms such as the Threshold Algorithm [10] consume an excessive amount of bandwidth when the number of nodes, m, is high. We propose a new algorithm called "Three-Phase Uniform Threshold" (TPUT). TPUT reduces network bandwidth consumption by pruning away ineligible objects, and terminates in three round-trips regardless of data input… CONTINUE READING
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