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  1. 学術雑誌論文
  2. 4 自然科学

Evaluation of Memory Capacity and Time Series Prediction Using a Spin Hall Oscillator as Reservoir

http://hdl.handle.net/10228/0002000062
http://hdl.handle.net/10228/0002000062
895d1b1a-2986-4124-a279-b121f47dbb6e
名前 / ファイル ライセンス アクション
10421262.pdf 10421262.pdf (538 KB)
Item type 学術雑誌論文 = Journal Article(1)
公開日 2023-08-17
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
タイトル
タイトル Evaluation of Memory Capacity and Time Series Prediction Using a Spin Hall Oscillator as Reservoir
言語 en
言語
言語 eng
著者 Mathew, Arun Jacob

× Mathew, Arun Jacob

en Mathew, Arun Jacob

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Mohan, John Rex

× Mohan, John Rex

en Mohan, John Rex

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Feng, Ruoyan

× Feng, Ruoyan

en Feng, Ruoyan

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Medwal, Rohit

× Medwal, Rohit

en Medwal, Rohit

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Gupta, Surbhi

× Gupta, Surbhi

en Gupta, Surbhi

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Rawat, Rajdeep Singh

× Rawat, Rajdeep Singh

en Rawat, Rajdeep Singh

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福間, 康裕

× 福間, 康裕

WEKO 25415
e-Rad 90513466
Scopus著者ID 7003509599
ORCiD 0000-0002-1280-1644
九工大研究者情報 100000402

en Fukuma, Yasuhiro

ja 福間, 康裕

ja-Kana フクマ, ヤスヒロ


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抄録
内容記述タイプ Abstract
内容記述 Spintronic devices, such as spin Hall oscillators (SHOs) and spin transfer torque oscillators, have become popular candidates for use as the reservoir in the reservoir computing (RC) architecture. The memory capacity of a reservoir quantifies the amount of information retained at any given time, indicating its significance for different RC tasks. In this work, we consider an SHO, consisting of a bilayer structure of platinum/Permalloy, as the reservoir. Using micromagnetic simulations, we evaluate the change in memory capacity of the SHO system as the magnetization dynamics varies from transient state oscillations to limit cycle oscillations. We also perform a three-bit parity task to study the performance of the oscillator in carrying out a nonlinear task. A time series prediction task, namely, the nonlinear auto regressive moving average (NARMA)2 task, is also performed. The results of both tasks confirm a correlation between the evaluated memory capacity of the reservoir and its efficiency in performing temporal tasks. The best performance in RC tasks is observed when the output magnetization dynamics of the oscillator consists of both transient state and limit cycle oscillations.
言語 en
書誌情報 en : IEEE Transactions on Magnetics

巻 59, 号 6, p. 1-5, 発行日 2023-04-23
出版社
出版者 IEEE
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 https://doi.org/10.1109/TMAG.2023.3266517
ISSN
収録物識別子タイプ PISSN
収録物識別子 0018-9464
ISSN
収録物識別子タイプ EISSN
収録物識別子 1941-0069
著作権関連情報
権利情報 Copyright (c) 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
キーワード
主題Scheme Other
主題 Memory capacity
キーワード
主題Scheme Other
主題 nonlinear magnetization dynamics
キーワード
主題Scheme Other
主題 reservoir computing (RC)
キーワード
主題Scheme Other
主題 spin Hall oscillators (SHOs)
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
査読の有無
値 yes
研究者情報
URL https://hyokadb02.jimu.kyutech.ac.jp/html/100000402_ja.html
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