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Presentation 2023-03-02 14:15
[Memorial Lecture] DependableHD: A Hyperdimensional Learning Framework for Edge-oriented Voltage-scaled Circuits [Memorial lecture]
Dehua Liang (Osaka Univ.), Hiromitsu Awano (Kyoto Univ.), Noriyuki Miura, Jun Shiomi (Osaka Univ.) VLD2022-93 HWS2022-64
Abstract (in Japanese) (See Japanese page) 
(in English) Voltage scaling is a promising approach for energy efficiency but also brings challenges to guaranteeing stable circuit operation. To tackle such issues, we propose DependableHD, a learning framework based on HyperDimensional Computing, which supports the systems to tolerate bit-level memory failure in low voltage with high robustness. DependableHD introduces the concept of margin enhancement and utilizes noise injection to improve the robustness. Under 10% memory error, DependableHD exhibits 1.22% accuracy loss on average, which achieves an 11.2x improvement. It supports the systems to reduce the supply voltage from 400mV to 300mV, which provides 50.41% energy reduction while maintaining accuracy.
Keyword (in Japanese) (See Japanese page) 
(in English) HyperDimensional Computing / Voltage Scaling / Robustness / Energy Efficiency / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 402, VLD2022-93, pp. 111-111, March 2023.
Paper # VLD2022-93 
Date of Issue 2023-02-22 (VLD, HWS) 
ISSN Online edition: ISSN 2432-6380
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)
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Conference Information
Committee HWS VLD  
Conference Date 2023-03-01 - 2023-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To VLD 
Conference Code 2023-03-HWS-VLD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) DependableHD: A Hyperdimensional Learning Framework for Edge-oriented Voltage-scaled Circuits [Memorial lecture] 
Sub Title (in English)  
Keyword(1) HyperDimensional Computing  
Keyword(2) Voltage Scaling  
Keyword(3) Robustness  
Keyword(4) Energy Efficiency  
1st Author's Name Dehua Liang  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Hiromitsu Awano  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Noriyuki Miura  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Jun Shiomi  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2023-03-02 14:15:00 
Presentation Time 25 minutes 
Registration for VLD 
Paper # VLD2022-93, HWS2022-64 
Volume (vol) vol.122 
Number (no) no.402(VLD), no.403(HWS) 
Page p.111 
Date of Issue 2023-02-22 (VLD, HWS) 

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