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Paper Abstract and Keywords
Presentation 2022-01-24 09:30
Study on a Correlation Controlling Method to Realize Correlation-used Calculations Sequentially in Stochastic Computing
Shu Zhang, Shigeru Yamashita (Ritsumeikan Univ.) VLD2021-49 CPSY2021-18 RECONF2021-57
Abstract (in Japanese) (See Japanese page) 
(in English) Stochastic Computing (SC) is an approximation calculation method using Stochastic Number (SN), which represents the existence probability of 1 in a bit string. Generally, when performing SC operations, if there is a correlation between SNs, a large error will occur. However, since a large circuit area is required to generate independent SNs, a method using correlated SNs has been proposed in recent years. Although operations using such correlated SNs are attracting attention, the following two problems exist. The first is that the correlation between output SNs changes in some operations. As a result, if the correlated operations are performed continuously, the SN correlation is affected, which in turn affects the calculation accuracy. The second problem is that some operations such as multiplication cannot be realized by correlated operations, so when performing complicated operations, it is necessary to use them together with uncorrelated operations. In this paper, in order to solve the above problems, we first propose a method of maintaining the correlation between output SNs by scaling addition by sharing the selection signal of the multiplexer. Next, by adding a method to reduce the correlation (RRRD) and a method to strengthen the correlation (SYNC) between the image processing operations, to control the correlation between SNs, and evaluate the effect.
Keyword (in Japanese) (See Japanese page) 
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Reference Info. IEICE Tech. Rep., vol. 121, no. 342, VLD2021-49, pp. 1-6, Jan. 2022.
Paper # VLD2021-49 
Date of Issue 2022-01-17 (VLD, CPSY, RECONF) 
ISSN 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 VLD2021-49 CPSY2021-18 RECONF2021-57

Conference Information
Committee RECONF VLD CPSY IPSJ-ARC IPSJ-SLDM  
Conference Date 2022-01-24 - 2022-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) FPGA Applications, etc. 
Paper Information
Registration To VLD 
Conference Code 2022-01-RECONF-VLD-CPSY-ARC-SLDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on a Correlation Controlling Method to Realize Correlation-used Calculations Sequentially in Stochastic Computing 
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1st Author's Name Shu Zhang  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Shigeru Yamashita  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2022-01-24 09:30:00 
Presentation Time 25 minutes 
Registration for VLD 
Paper # VLD2021-49, CPSY2021-18, RECONF2021-57 
Volume (vol) vol.121 
Number (no) no.342(VLD), no.343(CPSY), no.344(RECONF) 
Page pp.1-6 
#Pages 6 
Date of Issue 2022-01-17 (VLD, CPSY, RECONF) 

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