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A parallel execution method for minimizing distributed query response time

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3 Author(s)
Wang, C. ; Dept. of Comput. Sci., California Univ., Riverside, CA, USA ; Chen, A.L.P. ; Shyu, S.-C.

Performance studies show that traditional semi-join processing methods are sometimes inefficient because of the storage and processing overhead. To remedy this problem, a new semi-join processing method, called one-shot semi-join execution is proposed. This method allows parallel generation of all the semi-join projections, parallel transmission of all the semi-join projections, and parallel execution of all the semi-joins. The authors apply this method to optimize the response time for processing distributed queries. A response time model is established, which considers both data transmission time and local processing time. Based on this model, an efficient query processing algorithm is developed and analyzed

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:3 ,  Issue: 3 )