CAJ | 학술논문

基于信任的推荐是一种新兴技术,其核心原理是利用用户信任网络选择可靠的建议者.虽然在先前的研究中认为它的鲁棒性优于协同过滤,但这种技术抵抗攻击的实际能力尚未被量化研究.我们就此问题提出了一个形式化的评估框架,并对2种代表性的算法进行了比较评估.实验采用的数据集来源于Epinions.com网站.实验结果展示了影响算法鲁棒性的关键因素,据此给出了几项应对策略.
기우신임적추천시일충신흥기술,기핵심원리시이용용호신임망락선택가고적건의자.수연재선전적연구중인위타적로봉성우우협동과려,단저충기술저항공격적실제능력상미피양화연구.아문취차문제제출료일개형식화적평고광가,병대2충대표성적산법진행료비교평고.실험채용적수거집래원우Epinions.com망참.실험결과전시료영향산법로봉성적관건인소,거차급출료궤항응대책략.
Trust-based recommendation is an emerging technique, in which the trust web of usersserves as an overlay to locate reliable advisers. Although this technique is claimed to be more robust than collaborative filtering in previous researches, its real strength to resist attacks has not been quantifiably studied. We propose a formal evaluation framework for this topic and compare two representative algorithms in the literature on the data set from Epinions.com. Experiments indicate the key factors for their robustness. Furthermore, several countermeasures are suggested based on these findings.