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Paper Abstract and Keywords
Presentation 2026-03-05 14:15
[Memorial Lecture] BitROM: Weight Reload-Free CiROM Architecture Towards Billion-Parameter 1.58-bit LLM Inference
Wenlun Zhang (Keio Univ.), Xinyu Li (Nanjing Univ.), Shimpei Ando, Kentaro Yoshioka (Keio Univ.) VLD2025-93 HWS2025-89 ICD2025-104
Abstract (in Japanese) (See Japanese page) 
(in English) Compute-in-Read-Only-Memory (CiROM) accelerators provide excellent energy efficiency by eliminating runtime weight updates, but their extension to Large Language Models (LLMs) is limited by massive parameter sizes. This lecture introduces BitROM, a CiROM architecture co-designed with 1.58-bit BitNet, enabling efficient LLM inference at the edge.
Keyword (in Japanese) (See Japanese page) 
(in English) Compute-in-Memory / Read-Only-Memory / Large Language Model / BitNet / KV-Cache / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 382, VLD2025-93, pp. 98-98, March 2026.
Paper # VLD2025-93 
Date of Issue 2026-02-25 (VLD, HWS, ICD) 
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 VLD2025-93 HWS2025-89 ICD2025-104

Conference Information
Committee ICD HWS VLD  
Conference Date 2026-03-04 - 2026-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To VLD 
Conference Code 2026-03-ICD-HWS-VLD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) BitROM: Weight Reload-Free CiROM Architecture Towards Billion-Parameter 1.58-bit LLM Inference 
Sub Title (in English)  
Keyword(1) Compute-in-Memory  
Keyword(2) Read-Only-Memory  
Keyword(3) Large Language Model  
Keyword(4) BitNet  
Keyword(5) KV-Cache  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Wenlun Zhang  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Xinyu Li  
2nd Author's Affiliation Nanjing University (Nanjing Univ.)
3rd Author's Name Shimpei Ando  
3rd Author's Affiliation Keio University (Keio Univ.)
4th Author's Name Kentaro Yoshioka  
4th Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2026-03-05 14:15:00 
Presentation Time 25 minutes 
Registration for VLD 
Paper # VLD2025-93, HWS2025-89, ICD2025-104 
Volume (vol) vol.125 
Number (no) no.382(VLD), no.383(HWS), no.384(ICD) 
Page p.98 
#Pages 1 
Date of Issue 2026-02-25 (VLD, HWS, ICD) 

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