Vol.65, No.1, 2020, pp.369-385, doi:10.32604/cmc.2020.010987
Frequent Itemset Mining of User’s Multi-Attribute under Local Differential Privacy
  • Haijiang Liu1, Lianwei Cui2, Xuebin Ma1, *, Celimuge Wu3
1 College of Computer Science, Inner Mongolia University, Hohhot, 010020, China.
2 Inner Mongolia Big Data Development Authority, Hohhot, 010020, China.
3 Graduate School of Informatics and Engineering, the University of Electro-Communication, Tokyo, 182-8585, Japan.
* Corresponding Author: Xuebin Ma. Email: csmaxuebin@imu.edu.cn.
Received 13 April 2020; Accepted 11 May 2020; Issue published 23 July 2020
Frequent itemset mining is an essential problem in data mining and plays a key role in many data mining applications. However, users’ personal privacy will be leaked in the mining process. In recent years, application of local differential privacy protection models to mine frequent itemsets is a relatively reliable and secure protection method. Local differential privacy means that users first perturb the original data and then send these data to the aggregator, preventing the aggregator from revealing the user’s private information. We propose a novel framework that implements frequent itemset mining under local differential privacy and is applicable to user’s multi-attribute. The main technique has bitmap encoding for converting the user’s original data into a binary string. It also includes how to choose the best perturbation algorithm for varying user attributes, and uses the frequent pattern tree (FP-tree) algorithm to mine frequent itemsets. Finally, we incorporate the threshold random response (TRR) algorithm in the framework and compare it with the existing algorithms, and demonstrate that the TRR algorithm has higher accuracy for mining frequent itemsets.
Local differential privacy, frequent itemset mining, user’s multi-attribute.
Cite This Article
Liu, H., Cui, L., Ma, X., Wu, C. (2020). Frequent Itemset Mining of User’s Multi-Attribute under Local Differential Privacy. CMC-Computers, Materials & Continua, 65(1), 369–385.
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