Title :
A comparative study of shilling attack detectors for recommender systems
Author :
Youquan Wang ; Lu Zhang ; Haicheng Tao ; Zhiang Wu ; Jie Cao
Author_Institution :
Jiangsu Provincial Key Lab. of E-Bus., Nanjing Univ. of Finance & Econ., Nanjing, China
Abstract :
Uncovering shilling attackers hidden in recommender systems is very crucial to enhance the robustness and trustworthiness of product recommendation. Many shilling attack detection algorithms have been proposed so far, and they exhibit complementary advantage and disadvantage towards various types of attacks. In this paper, we provide a thorough experimental comparison of several well-known detectors, including supervised and unsupervised methods. MovieLens 100K is the most widely-used dataset in the realm of shilling attack detection, and thus it is selected as the benchmark dataset. Meanwhile, seven types of shilling attacks generated by average-filling and random-filling model are tested in our experiments. As a result of our analysis, we show clearly causes and essential characteristics insider attackers that might determine the success or failure of different kinds of detectors.
Keywords :
recommender systems; security of data; unsupervised learning; MovieLens 100K dataset; average-filling model; product recommendation; random-filling model; recommender systems; shilling attack detection; shilling attack detection algorithms; supervised methods; unsupervised methods; Covariance matrices; Detection algorithms; Detectors; Feature extraction; Niobium; Principal component analysis; Training; MovieLens; Recommender System; Shilling Attack Detection; Supervised Learning; Unsupervised Learning;
Conference_Titel :
Service Systems and Service Management (ICSSSM), 2015 12th International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4799-8327-8
DOI :
10.1109/ICSSSM.2015.7170330
