Incorporating Auxiliary Information in Collaborative Filtering Data Update with Privacy Preservation
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2014, Vol 5, Issue 4
Abstract
Online shopping has become increasingly popular in recent years. More and more people are willing to buy products through Internet instead of physical stores. For promotional purposes, almost all online merchants provide product recommendations to their returning customers. Some of them ask professional recommendation service providers to help develop and maintain recommender systems while others need to share their data with similar shops for better product recommendations. There are two issues, (1) how to protect customers’ privacy while retaining data utility before they release the data to the third parties; (2) based on (1), how to handle data growth efficiently. In this paper, we propose a NMF (Nonnegative Matrix Factorization)-based data update approach in collaborative filtering (CF) that solves the problems. The proposed approach utilizes the intrinsic property of NMF to distort the data for protecting user’s privacy. In addition, the user and item auxiliary information is taken into account in incremental nonnegative matrix tri-factorization to help improve the data utility. Experiments on three different datasets (MovieLens, Sushi and LibimSeTi) are conducted to examine the proposed approach. The results show that our approach can quickly update the new data and provide both high level privacy protection and good data utility.
Authors and Affiliations
Xiwei Wang , Jun Zhang, Pengpeng Lin, Nirmal Thapa, Yin Wang, Jie Wang
Keywords
Related Articles
- EP ID EP147200
- DOI 10.14569/IJACSA.2014.050432
- Views 115
- Downloads 0
Communication System Design of Remote Areas using Openbts
OpenBTS is a software-based GSM BTS, which allows GSM cell phone users to make phone calls or send SMS (short messages), without using a commercial service provider network. OpenBTS is known as the first open source impl...
De Jong’s Sphere Model Test for a Human Community Based Genetic Algorithm Model (HCBGA)
A new structured population approach for genetic algorithm, based on the custom, behavior and pattern of human community is provided. This model is named the Human Community Based Genetic Algorithm (HCBGA) model. It incl...
An Information Theoretic Analysis of Random Number Generator based on Cellular Automaton
Realization of Randomness had always been a controversial concept with great importance both from theoretical and practical Perspectives. This realization has been revolutionized in the light of recent studies especially...
A new approach towards the self-adaptability of Service-Oriented Architectures to the context based on workflow
Distributed information systems are needed to be autonomous, heterogeneous and adaptable to the context. This is the reason why they resort Web services based on SOA Based on the advanced technology of SOA. These technol...
Chemical Reaction Optimization Algorithm to Find Maximum Independent Set in a Graph
Finding maximum independent set (MIS) in a graph is considered one of the fundamental problems in the computer science field, where it can be used to provide solutions for various real life applications. For example, it...