Dissertation > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems

Image Data Mining Based on Parallel Association Rules

Author PanWeiHao
Tutor SunJinGuang
School Liaoning Technical University
Course Applied Computer Technology
Keywords Association rules Parallel Computing Fleet Frequent Itemsets Candidate itemsets
CLC TP311.13
Type Master's thesis
Year 2009
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This paper studies the multimedia data mining prototype , starting from the architecture established containing media library feature library , repository of multimedia databases , in order to fully demonstrate the characteristics of the image data , thereby solving the problem of the representation of the image data itself . Meanwhile, to improve mining efficiency , the use of high-performance parallel cluster environment , designed to improve the parallel association rules algorithm for efficient parallel excavation . Unified messaging using MPI average allocation of resources in order to achieve higher load balancing efficiency ; using master -slave architecture , a processor as the main control processor dedicated to generate the global frequent itemsets , and is responsible for the information and other processors interaction , while other processors as a slave processor, the only local candidate is responsible for generating sets and counting and pruning, there is no information from the interaction between processors , so that you can reduce the communication time and improve efficiency ; in establishing a master controller Hash table to achieve frequent itemsets in the database table records the mapping to improve the speed of queries and counting . The experiment proved that the proposed algorithm improvement and optimization of the serial association rules algorithm, can guarantee candidate itemsets and frequent itemsets integrity: the classical parallel algorithm of association rules CaD and CD , compared with a higher speedup and efficiency.

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