| Presentation | 2009-07-28 Replica relocation considering data distribution in P2P networks Toshiki WATANABE, Yong ZHAO, Akimitsu KANZAKI, Takahiro HARA, Shojiro NISHIO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In P2P networks, it is effective to allocate replicas of each data item to multiple peers for improving search efficiency and data availability. It has been mathematically proved that the square-root allocation, in which the ratios of numbers of replicas are proportional to the square-root of their access frequencies, is optimal in terms of search efficiency. In this paper, we propose a replica relocation method that not only achieves the square-root allocation but also distributes replicas uniformly in the network. In our method, each peer on the path along which a query is successfully forwarded determines whether it creates the replica or not based on the access frequency of the data item. In addition, for creating a new replica, our method preferentially deletes a replica of a data item which has been replicated at a large number of peers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | P2P / replica / square-root allocation / access frequency |
| Paper # | DE2009-9 |
| Date of Issue |
| Conference Information | |
| Committee | DE |
|---|---|
| Conference Date | 2009/7/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Data Engineering (DE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Replica relocation considering data distribution in P2P networks |
| Sub Title (in English) | |
| Keyword(1) | P2P |
| Keyword(2) | replica |
| Keyword(3) | square-root allocation |
| Keyword(4) | access frequency |
| 1st Author's Name | Toshiki WATANABE |
| 1st Author's Affiliation | Dept. of Multimedia Eng. Grad. Sch. of Information Science and Technology, Osaka Univ.() |
| 2nd Author's Name | Yong ZHAO |
| 2nd Author's Affiliation | Dept. of Multimedia Eng. Grad. Sch. of Information Science and Technology, Osaka Univ. |
| 3rd Author's Name | Akimitsu KANZAKI |
| 3rd Author's Affiliation | Dept. of Multimedia Eng. Grad. Sch. of Information Science and Technology, Osaka Univ. |
| 4th Author's Name | Takahiro HARA |
| 4th Author's Affiliation | Dept. of Multimedia Eng. Grad. Sch. of Information Science and Technology, Osaka Univ. |
| 5th Author's Name | Shojiro NISHIO |
| 5th Author's Affiliation | Dept. of Multimedia Eng. Grad. Sch. of Information Science and Technology, Osaka Univ. |
| Date | 2009-07-28 |
| Paper # | DE2009-9 |
| Volume (vol) | vol.109 |
| Number (no) | 153 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |