Information Theoretical Analysis of Unfair Rating Attacks Under Subjectivity
| العنوان: | Information Theoretical Analysis of Unfair Rating Attacks Under Subjectivity |
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| المؤلفون: | Dongxia Wang, Jie Zhang, Yang Liu, Tim Muller |
| المساهمون: | School of Computer Science and Engineering |
| المصدر: | IEEE Transactions on Information Forensics and Security. 15:816-828 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Subjectivity, 021110 strategic, defence & security studies, Unfair Rating Attacks, Computer Networks and Communications, Computer science, 0211 other engineering and technologies, Probabilistic logic, 02 engineering and technology, Computer security, computer.software_genre, Information theory, Robustness (computer science), Worst-Case Attacks, Computer science and engineering [Engineering], Safety, Risk, Reliability and Quality, computer |
| الوصف: | Ratings provided by advisors can help an advisee to make decisions, e.g., which seller to select in e-commerce. Unfair rating attacks - where dishonest ratings are provided to mislead the advisee - impact the accuracy of decision making. Current literature focuses on specific classes of unfair rating attacks, which does not provide a complete picture of the attacks. We provide the first formal study that addresses all attack behavior that is possible within a given system. We propose a probabilistic modeling of rating behavior, and apply information theory to quantitatively measure the impact of attacks. In particular, we can identify the attack with the worst impact. In the simple case, honest advisors report the truth straightforwardly, and attackers rate strategically. In real systems, the truth (or an advisor's view on it) may be subjective, making even honest ratings inaccurate. Although there exist methods to deal with subjective ratings, whether subjectivity influences the effect of unfair rating attacks was an open question. We discover that subjectivity decreases the robustness against attacks. |
| تدمد: | 1556-6021 1556-6013 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f11d2d7099da47e85c8d9b119c07f40c https://doi.org/10.1109/tifs.2019.2929678 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....f11d2d7099da47e85c8d9b119c07f40c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15566021 15566013 |
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