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Binary stochastic neurons (BSNs) are excellent hardware accelerators for machine learning. A popular platform for implementing them are low- or zero-energy barrier nanomagnets possessing in-plane magnetic anisotropy (e.g. circular disks or…

介观与纳米尺度物理 · 物理学 2022-11-16 Rahnuma Rahman , Supriyo Bandyopadhyay

Binary stochastic neurons (BSNs) are excellent activators for machine learning. An ideal platform for implementing them are low- or zero-energy-barrier nanomagnets (LBMs) possessing in-plane anisotropy (e.g. circular or slightly elliptical…

介观与纳米尺度物理 · 物理学 2023-02-28 Rahnuma Rahman , Supriyo Bandyopadhyay

Binary stochastic neurons (BSN's) form an integral part of many machine learning algorithms, motivating the development of hardware accelerators for this complex function. It has been recognized that hardware BSN's can be implemented using…

新兴技术 · 计算机科学 2019-04-23 Orchi Hassan , Rafatul Faria , Kerem Y. Camsari , Jonathan Z. Sun , Supriyo Datta

Stochastic neurons are efficient hardware accelerators for solving a large variety of combinatorial optimization problems. "Binary" stochastic neurons (BSN) are those whose states fluctuate randomly between two levels +1 and -1, with the…

新兴技术 · 计算机科学 2024-04-03 Rahnuma Rahman , Samiran Ganguly , Supriyo Bandyopadhyay

Probabilistic (p-) bits implemented with low energy barrier nanomagnets (LBMs) have recently gained attention because they can be leveraged to perform some computational tasks very efficiently. Although more error-resilient than Boolean…

介观与纳米尺度物理 · 物理学 2020-03-10 Justine L. Drobitch , Supriyo Bandyopadhyay

Low energy barrier magnet (LBM) technology has recently been proposed as a candidate for accelerating algorithms based on energy minimization and probabilistic graphs because their physical characteristics have a one-to-one mapping onto the…

新兴技术 · 计算机科学 2025-03-03 Md Golam Morshed , Samiran Ganguly , Avik W. Ghosh

Energy-efficient methods are addressed for leveraging low energy barrier nanomagnetic devices within neuromorphic architectures. Using a Magnetoresistive Random Access Memory (MRAM) probabilistic device (p-bit) as the basis of neuronal…

新兴技术 · 计算机科学 2020-05-06 Hossein Pourmeidani , Punyashloka Debashis , Zhihong Chen , Ronald F. DeMara , Ramtin Zand

Stochastic neurons are extremely efficient hardware for solving a large class of problems and usually come in two varieties -- "binary" where the neuronal statevaries randomly between two values of -1, +1 and "analog" where the neuronal…

介观与纳米尺度物理 · 物理学 2025-02-03 Rahnuma Rahman , Supriyo Bandyopadhyay

Nanomagnets with small shape anisotropy energy barriers on the order of the thermal energy have unstable magnetization that fluctuates randomly in time. They have recently emerged as promising hardware platforms for stochastic computing and…

介观与纳米尺度物理 · 物理学 2020-03-10 Md Ahsanul Abeed , Supriyo Bandyopadhyay

Probabilistic computing with binary stochastic neurons (BSN) implemented with low- or zero-energy barrier nanoscale ferromagnets (LBMs) possessing in-plane magnetic anisotropy has emerged as an efficient paradigm for solving computationally…

介观与纳米尺度物理 · 物理学 2023-07-11 Rahnuma Rahman , Supriyo Bandyopadhyay

Recently there has been increasing activity to build dedicated Ising Machines to accelerate the solution of combinatorial optimization problems by expressing these problems as a ground-state search of the Ising model. A common theme of such…

新兴技术 · 计算机科学 2021-06-21 Orchi Hassan , Supriyo Datta , Kerem Y. Camsari

Bayesian Neural Networks (BNNs) can overcome the problem of overconfidence that plagues traditional frequentist deep neural networks, and are hence considered to be a key enabler for reliable AI systems. However, conventional hardware…

神经与进化计算 · 计算机科学 2024-01-30 Prabodh Katti , Nicolas Skatchkovsky , Osvaldo Simeone , Bipin Rajendran , Bashir M. Al-Hashimi

The impressive performance of artificial neural networks has come at the cost of high energy usage and CO$_2$ emissions. Unconventional computing architectures, with magnetic systems as a candidate, have potential as alternative…

A single-domain nanomagnet, shaped like a thin elliptical disk with small eccentricity, has a double well potential profile with two degenerate energy minima separated by a small barrier of a few kT (k = Boltzmann constant and T = absolute…

介观与纳米尺度物理 · 物理学 2024-07-24 Rahnuma Rahman , Supriyo Bandyopadhyay

It has recently been shown that a suitably interconnected network of tunable telegraphic noise generators or "p-bits" can be used to perform even precise arithmetic functions like a 32-bit adder. In this paper we use simulations based on…

介观与纳米尺度物理 · 物理学 2017-04-13 Rafatul Faria , Kerem Yunus Camsari , Supriyo Datta

One of the most exciting applications of Spin Torque Magnetoresistive Random Access Memory (ST-MRAM) is the in-memory implementation of deep neural networks, which could allow improving the energy efficiency of Artificial Intelligence by…

The coupling of spin-orbit materials to high energy barrier ($\sim$40-60 $k_BT$) nano-magnets has attracted growing interest for exciting new physics and various spintronic applications. We predict that a coupling between the spin-momentum…

介观与纳米尺度物理 · 物理学 2019-05-29 Shehrin Sayed , Kerem Y. Camsari , Rafatul Faria , Supriyo Datta

Stochastic spiking neural networks based on nanoelectronic spin devices can be a possible pathway to achieving "brainlike" compact and energy-effcient cognitive intelligence. The computational model attempt to exploit the intrinsic device…

新兴技术 · 计算机科学 2018-01-29 Chamika M. Liyanagedera , Abhronil Sengupta , Akhilesh Jaiswal , Kaushik Roy

Magnetic Random-Access Memory (MRAM) based p-bit neuromorphic computing devices are garnering increasing interest as a means to compactly and efficiently realize machine learning operations in Restricted Boltzmann Machines (RBMs). When…

新兴技术 · 计算机科学 2020-02-04 Paul Wood , Hossein Pourmeidani , Ronald F. DeMara

Magnetoresistive random access memory (MRAM) technologies with thermally unstable nanomagnets are leveraged to develop an intrinsic stochastic neuron as a building block for restricted Boltzmann machines (RBMs) to form deep belief networks…

新兴技术 · 计算机科学 2019-04-01 Ramtin Zand , Kerem Y. Camsari , Supriyo Datta , Ronald F. DeMara
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