Dynamic Sliding Window Model for Service Reputation

Xin Zhou, Toru Ishida, Yohei Murakami

研究成果: Conference contribution

4 引用 (Scopus)

抜粋

Reputation plays a crucial role in the success of e-commerce. In a commercial transaction, it is necessary to present reputation values of web services in a timely and a robust manner so as to counter the unfair ratings of malicious users. To address the time lag problem, most popular web sites use an averaging algorithm with fixed sliding windows, window size is constant and older ratings are dropped upon the arrival of new ratings. Herein, we propose a dynamic sliding window model that is capable of reflecting the reputation values yielded by the latest changes in services. Furthermore, we implement a statistical strategy to filter out unfair ratings by calculating the standard deviation of the ratings after transposing the two-dimensional linear window into the constant one-dimensional window by using linear regression. Experiments confirm the effectiveness of the proposed model, it outperforms the existing reputation system by 40% on average based on the 5 test cases examined, and also show that it can asymptotically converge to the underlying reputation value as ratings accumulate.

元の言語English
ホスト出版物のタイトルProceedings - 2015 IEEE International Conference on Services Computing, SCC 2015
編集者Wu Chou, Paul P. Maglio, Incheon Paik
出版者Institute of Electrical and Electronics Engineers Inc.
ページ25-32
ページ数8
ISBN(電子版)9781467372817
DOI
出版物ステータスPublished - 2015 8 17
外部発表Yes
イベントIEEE International Conference on Services Computing, SCC 2015 - New York, United States
継続期間: 2015 6 272015 7 2

出版物シリーズ

名前Proceedings - 2015 IEEE International Conference on Services Computing, SCC 2015

Conference

ConferenceIEEE International Conference on Services Computing, SCC 2015
United States
New York
期間15/6/2715/7/2

    フィンガープリント

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Computer Science Applications

これを引用

Zhou, X., Ishida, T., & Murakami, Y. (2015). Dynamic Sliding Window Model for Service Reputation. : W. Chou, P. P. Maglio, & I. Paik (版), Proceedings - 2015 IEEE International Conference on Services Computing, SCC 2015 (pp. 25-32). [7207332] (Proceedings - 2015 IEEE International Conference on Services Computing, SCC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCC.2015.14