| Presentation | 2018-07-19 On the Minimum Cost of Information Erasure for Stationary Memoryless Sources Naruaki Amada, Hideki Yagi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to erase data including confidential information stored in the storage device, overwriting an unrelated and random sequence is usually performed, which prevents the data from being restored. Recently, the problem of minimizing the cost for information erasure when the amount of information leakage of the confidential information should be less than or equal to a constant asymptotically has been proposed by T. Matsuta and T. Uyematsu. Whereas the minimum cost for overwriting has been given for general sources, a single-letter characterization has been given for stationary memoryless sources only for which confidential information and the data stored in the device are the same. In this paper, we provide a single-letter formula of the minimum cost for overwriting for stationary memoryless sources for which confidential information and the data stored in the device may be different. We calculate the minimum cost for a source and show the relation between the amount of information leakage and the minimum cost for overwriting. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | confidential information / information erasure / minimum cost / stationary memoryless source |
| Paper # | IT2018-17 |
| Date of Issue | 2018-07-12 (IT) |
| Conference Information | |
| Committee | IT |
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| Conference Date | 2018/7/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yamato Kaigishitsu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | freshman session, general |
| Chair | Jun Muramatsu(NTT) |
| Vice Chair | Tadashi Wadayama(Nagoya Inst. of Tech.) |
| Secretary | Tadashi Wadayama(Nagano Pref Inst. of Tech.) |
| Assistant | Takahiro Yoshida(Yokohama College of Commerce) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On the Minimum Cost of Information Erasure for Stationary Memoryless Sources |
| Sub Title (in English) | |
| Keyword(1) | confidential information |
| Keyword(2) | information erasure |
| Keyword(3) | minimum cost |
| Keyword(4) | stationary memoryless source |
| 1st Author's Name | Naruaki Amada |
| 1st Author's Affiliation | The University of Electro-Communications(Univ. of Electro-Comm.) |
| 2nd Author's Name | Hideki Yagi |
| 2nd Author's Affiliation | The University of Electro-Communications(Univ. of Electro-Comm.) |
| Date | 2018-07-19 |
| Paper # | IT2018-17 |
| Volume (vol) | vol.118 |
| Number (no) | IT-139 |
| Page | pp.pp.25-29(IT), |
| #Pages | 5 |
| Date of Issue | 2018-07-12 (IT) |