| Presentation | 2012-07-19 A Fast Privacy-Preserving Collaborative Filtering Scheme with Transferring Statistical Values Toru NAKAMURA, Shinsaku KIYOMOTO, Ryu WATANABE, Yutaka MIYAKE, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The goal of this study is to provide more accurate recommendation to users with sharing user information among service providers. However, user information such as users' ratings of items is related to user privacy, hence it should not be shared. There are some existing work to prevent revealing the original ratings based on cryptographic techniques or perturvative techniques. However, these approaches have drawbacks such as huge computation cost or deterioration of accuracy. This paper proposes fast collaborative filtering algorithms, in which database servers transfer some statistical values to another server in order to improve the accuracy of recommendation. It is difficult to calculate the original ratings from the statistical values. The algorithms are based on the Slope One algorithm. This paper evaluates the accuracies and the communication complexities of the algorithms. In addition, this paper discusses the difficulty of calculating any information related to original ratings from the statistical values. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Collaborative filtering / Privacy protection / Slope One |
| Paper # | ISEC2012-23,SITE2012-19,ICSS2012-25,EMM2012-15 |
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| Conference Information | |
| Committee | SITE |
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| Conference Date | 2012/7/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Social Implications of Technology and Information Ethics (SITE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Fast Privacy-Preserving Collaborative Filtering Scheme with Transferring Statistical Values |
| Sub Title (in English) | |
| Keyword(1) | Collaborative filtering |
| Keyword(2) | Privacy protection |
| Keyword(3) | Slope One |
| 1st Author's Name | Toru NAKAMURA |
| 1st Author's Affiliation | KDDI R&D Laboratories Inc.() |
| 2nd Author's Name | Shinsaku KIYOMOTO |
| 2nd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 3rd Author's Name | Ryu WATANABE |
| 3rd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 4th Author's Name | Yutaka MIYAKE |
| 4th Author's Affiliation | KDDI R&D Laboratories Inc. |
| Date | 2012-07-19 |
| Paper # | ISEC2012-23,SITE2012-19,ICSS2012-25,EMM2012-15 |
| Volume (vol) | vol.112 |
| Number (no) | 127 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |