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| Presentation | 2018-03-02 09:50 Approximate computing based on extension of DRAM refresh interval and data correction Takamasa Fukasawa, Kimiyoshi Usami (SIT)  VLD2017-121 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | As DRAM capacity increases, there is concern that energy consumption will increase due to the refresh. Therefore, we propose a method to reduce the energy consumption of DRAM. We propose a method of approximate computing that extends the automatic refresh interval of DRAM to reduce energy consumption. By increasing the automatic refresh interval, energy consumption caused by refreshing can be reduced. However, there is a problem that data held in the DRAM volatilizes and data errors occur. In order to suppress the mistake rate, we proposed a method to incorporate data reconstruction using block reversal method, parity check, median filter, etc., and the evaluation results are shown. As a result, we were able to reduce energy consumption by about 50~60% while maintaining the image quality at PSNR: 30 dB, SSIM: 0.99. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | DRAM / approximate computing / refresh / block reversal method / median filter / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 455, VLD2017-121, pp. 193-198, Feb. 2018. | |
| Paper # | VLD2017-121 | |
| Date of Issue | 2018-02-21 (VLD) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | VLD2017-121 |
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| Conference Information | |
| Committee | VLD HWS |
| Conference Date | 2018-02-28 - 2018-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Seinen Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | VLD |
| Conference Code | 2018-02-VLD |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Approximate computing based on extension of DRAM refresh interval and data correction |
| Sub Title (in English) | |
| Keyword(1) | DRAM |
| Keyword(2) | approximate computing |
| Keyword(3) | refresh |
| Keyword(4) | block reversal method |
| Keyword(5) | median filter |
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| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takamasa Fukasawa |
| 1st Author's Affiliation | Shibaura Institute of Technology (SIT) |
| 2nd Author's Name | Kimiyoshi Usami |
| 2nd Author's Affiliation | Shibaura Institute of Technology (SIT) |
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| Speaker | Author-1 |
| Date Time | 2018-03-02 09:50:00 |
| Presentation Time | 25 minutes |
| Registration for | VLD |
| Paper # | VLD2017-121 |
| Volume (vol) | vol.117 |
| Number (no) | no.455 |
| Page | pp.193-198 |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (VLD) |
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