Title
New Multi-Keyword Ciphertext Search Method for Sensor Network Cloud Platforms.
Abstract
This paper proposed a multi-keyword ciphertext search, based on an improved-quality hierarchical clustering (MCS-IQHC) method. MCS-IQHC is a novel technique, which is tailored to work with encrypted data. It has improved search accuracy and can self-adapt when performing multi-keyword ciphertext searches on privacy-protected sensor network cloud platforms. Document vectors are first generated by combining the term frequency-inverse document frequency (TF-IDF) weight factor and the vector space model (VSM). The improved quality hierarchical clustering (IQHC) algorithm then generates document vectors, document indices, and cluster indices, which are encrypted via the k-nearest neighbor algorithm (KNN). MCS-IQHC then returns the top-k search result. A series of experiments proved that the proposed method had better searching efficiency and accuracy in high-privacy sensor cloud network environments, compared to other state-of-the-art methods.
Year
DOI
Venue
2018
10.3390/s18093047
SENSORS
Keywords
Field
DocType
sensor network,cloud,multi-keyword,ciphertext search,KNN,the top-k result,privacy protection
Electronic engineering,Ciphertext,Engineering,Wireless sensor network,Distributed computing,Cloud computing
Journal
Volume
Issue
Citations 
18
9.0
0
PageRank 
References 
Authors
0.34
5
5
Name
Order
Citations
PageRank
Lixia Xie1123.66
Ziying Wang200.34
Yue Wang3960143.63
Hongyu Yang4194.73
Jiyong Zhang530.83