Computer Science ›› 2017, Vol. 44 ›› Issue (1): 149-154.doi: 10.11896/j.issn.1002-137X.2017.01.029

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Multi-keyword Ranked Search Method Based on B+ Tree

NA Hai-yang, YANG Geng and SHU Xiao-wei   

  • Online:2018-11-13 Published:2018-11-13

Abstract: For the large amount of information and the storage of encrypted privacy information in society,it has become more difficult to retrieve these information for users.Based on research and analysis of the existing searchable encryption scheme,a method of multi-keyword ranked search based on B+ tree was proposed in this paper.Specifically,the vector model is combined in the index construction and trapdoor generation,and the search results are sorted according to the relevance score and the match number of keyword.Finally,the experiments are conducted on the really dataset to demonstrate the search efficiency of the proposed scheme.

Key words: B+ Tree,Encrypted search,Multi-keyword

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