| Presentation | 2020-11-06 Considering the variation of the noise-addition amount in local differential privacy with user trajectory adjacency Taisho Sasada, Yuzo Taenaka, Youki Kadobayashi, Doudou Fall, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The detection of clusters in densely populated areas by contact tracing is urgent, because these locations are trajectories represented by a series of latitude and longitude data, and sensitive information can be inferred, which carries a privacy risk, although it is possible to detect clusters with higher accuracy using GPS. In order to guarantee privacy, there is a local differential privacy policy that adds noise at the data collection stage, but the user cannot control the amount of noise added. The risk tolerance is different for each individual, and the amount of noise addition must be dynamically changed according to the user's trajectory. Therefore, in this study, we vary the amount of noise addition according to the risk of privacy leakage considering the trajectory adjacency of the user. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Local Differential Privacy / Trajectory Adjacency / Cluster Detection |
| Paper # | ISEC2020-39,SITE2020-36,LOIS2020-19 |
| Date of Issue | 2020-10-30 (ISEC, SITE, LOIS) |
| Conference Information | |
| Committee | LOIS / ISEC / SITE |
|---|---|
| Conference Date | 2020/11/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toru Kobayashi(Nagasaki Univ.) / Shoichi Hirose(Univ. of Fukui) / Masaru Ogawa(Kobe Gakuin Univ.) |
| Vice Chair | Hiroyuki Toda(NTT) / Tetsuya Izu(Fujitsu Labs.) / Noboru Kunihiro(Tsukuba Univ.) / Takushi Otani(Kibi International Univ.) / Takeo Tatsumi(Open Univ. of Japan) |
| Secretary | Hiroyuki Toda(NTT) / Tetsuya Izu(Nagasaki Univ.) / Noboru Kunihiro(Tsukuba Univ.) / Takushi Otani(Fujitsu Labs.) / Takeo Tatsumi(KDDI Research) |
| Assistant | Shigeru Fujimura(NTT) / Kazuki Yoneyama(Ibaraki Univ.) / Daisuke Suzuki(Hokuriku Univ.) / Hideyuki Fujii(NRI-Secure) |
| Paper Information | |
| Registration To | Technical Committee on Life Intelligence and Office Information Systems / Technical Committee on Information Security / Technical Committee on Social Implications of Technology and Information Ethics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Considering the variation of the noise-addition amount in local differential privacy with user trajectory adjacency |
| Sub Title (in English) | |
| Keyword(1) | Local Differential Privacy |
| Keyword(2) | Trajectory Adjacency |
| Keyword(3) | Cluster Detection |
| 1st Author's Name | Taisho Sasada |
| 1st Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 2nd Author's Name | Yuzo Taenaka |
| 2nd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 3rd Author's Name | Youki Kadobayashi |
| 3rd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 4th Author's Name | Doudou Fall |
| 4th Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| Date | 2020-11-06 |
| Paper # | ISEC2020-39,SITE2020-36,LOIS2020-19 |
| Volume (vol) | vol.120 |
| Number (no) | ISEC-224,SITE-225,LOIS-226 |
| Page | pp.pp.45-50(ISEC), pp.45-50(SITE), pp.45-50(LOIS), |
| #Pages | 6 |
| Date of Issue | 2020-10-30 (ISEC, SITE, LOIS) |