Browsing by Author "Vagena, Zografoula"

Now showing items 1-2 of 2

    • Article  

      Finding the K highest-ranked answers in a distributed network 

      Zeinalipour-Yazdi, Constantinos D.; Vagena, Zografoula; Kalogeraki, Vana; Gunopulos, Dimitrios; Tsotras, Vassilis J.; Vlachos, Michail; Koudas, Nick; Srivastava, D. (2009)
      In this paper, we present an algorithm for finding the k highest-ranked (or Top-k) answers in a distributed network. A Top-K query returns the subset of most relevant answers, in place of all answers, for two reasons: (i) ...
    • Conference Object  

      The threshold join algorithm for top-k queries in distributed sensor networks 

      Zeinalipour-Yazdi, Constantinos D.; Vagena, Zografoula; Gunopulos, Dimitrios; Kalogeraki, Vana; Tsotras, Vassilis J.; Vlachos, Michail; Koudas, Nick; Srivastava, D. (2005)
      In this paper we present the Threshold Join Algorithm (TJA), which is an efficient TOP-k query processing algorithm for distributed sensor networks. The objective of a top-k query is to find the k highest ranked answers ...