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Nanoelectronic devices that mimic the functionality of synapses are a crucial requirement for performing cortical simulations of the brain. In this work we propose a ferromagnet-heavy metal heterostructure that employs spin-orbit torque to…

新兴技术 · 计算机科学 2015-06-23 Abhronil Sengupta , Zubair Al Azim , Xuanyao Fong , Kaushik Roy

Spiking neural networks (SNN) are artificial computational models that have been inspired by the brain's ability to naturally encode and process information in the time domain. The added temporal dimension is believed to render them more…

We report on an artificial synapse, an organic synapse-transistor (synapstor) working at 1 volt and with a typical response time in the range 100-200 ms. This device (also called NOMFET, Nanoparticle Organic Memory Field Effect Transistor)…

Spiking neural networks (SNNs) are being explored in an attempt to mimic brain's capability to learn and recognize at low power. Crossbar architecture with highly scalable Resistive RAM or RRAM array serving as synaptic weights and neuronal…

神经与进化计算 · 计算机科学 2018-08-08 Aditya Shukla , Udayan Ganguly

In this work, we propose ReStoCNet, a residual stochastic multilayer convolutional Spiking Neural Network (SNN) composed of binary kernels, to reduce the synaptic memory footprint and enhance the computational efficiency of SNNs for complex…

计算机视觉与模式识别 · 计算机科学 2019-02-13 Gopalakrishnan Srinivasan , Kaushik Roy

Spiking neural networks (SNNs) are the third generation of neural networks that are biologically inspired to process data in a fashion that emulates the exchange of signals in the brain. Within the Computer Vision community SNNs have…

音频与语音处理 · 电气工程与系统科学 2024-09-04 William Bjorndahl , Jack Easton , Austin Modoff , Eric C. Larson , Joseph Camp , Prasanna Rangarajan

Biological neural networks do not only include long-term memory and weight multiplication capabilities, as commonly assumed in artificial neural networks, but also more complex functions such as short-term memory, short-term plasticity, and…

This study introduces a novel supervised learning approach for spiking neural networks that does not rely on traditional backpropagation. Instead, it employs spike-timing-dependent plasticity (STDP) within a supervised framework for image…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Wei Xie

We present results from a new approach to learning and plasticity in neuromorphic hardware systems: to enable flexibility in implementable learning mechanisms while keeping high efficiency associated with neuromorphic implementations, we…

神经元与认知 · 定量生物学 2016-10-14 Simon Friedmann , Johannes Schemmel , Andreas Gruebl , Andreas Hartel , Matthias Hock , Karlheinz Meier

The adaptive changes in synaptic efficacy that occur between spiking neurons have been demonstrated to play a critical role in learning for biological neural networks. Despite this source of inspiration, many learning focused applications…

神经与进化计算 · 计算机科学 2022-05-30 Samuel Schmidgall , Julia Ashkanazy , Wallace Lawson , Joe Hays

Spiking neural networks (SNNs) are posited as a computationally efficient and biologically plausible alternative to conventional neural architectures, with their core computational framework primarily using the leaky integrate-and-fire…

神经与进化计算 · 计算机科学 2025-03-18 Malyaban Bal , Abhronil Sengupta

A Spiking Neural Network (SNN) is trained with Spike Timing Dependent Plasticity (STDP), which is a neuro-inspired unsupervised learning method for various machine learning applications. This paper studies the generalizability properties of…

神经与进化计算 · 计算机科学 2021-08-10 Biswadeep Chakraborty , Saibal Mukhopadhyay

Neuromorphic computing has emerged as a promising avenue towards building the next generation of intelligent computing systems. It has been proposed that memristive devices, which exhibit history-dependent conductivity modulation, could…

In this work, we propose time-integrated spike-timing-dependent plasticity (TI-STDP), a mathematical model of synaptic plasticity that allows spiking neural networks to continuously adapt to sensory input streams in an unsupervised fashion.…

神经元与认知 · 定量生物学 2024-07-16 William Gebhardt , Alexander G. Ororbia

Deep 'Analog Artificial Neural Networks' (ANNs) perform complex classification problems with remarkably high accuracy. However, they rely on humongous amount of power to perform the calculations, veiling the accuracy benefits. The…

新兴技术 · 计算机科学 2018-04-17 Parami Wijesinghe , Aayush Ankit , Abhronil Sengupta , Kaushik Roy

Spiking neural networks, the third generation of artificial neural networks, have become an important family of neuron-based models that sidestep many of the key limitations facing modern-day backpropagation-trained deep networks, including…

神经与进化计算 · 计算机科学 2024-09-18 Cory Merkel , Alexander Ororbia

Spiking neural networks (SNNs) are brain-inspired mathematical models with the ability to process information in the form of spikes. SNNs are expected to provide not only new machine-learning algorithms, but also energy-efficient…

神经与进化计算 · 计算机科学 2020-01-16 Yusuke Sakemi , Kai Morino , Takashi Morie , Kazuyuki Aihara

Spiking neural networks (SNNs) offer a biologically grounded and energy-efficient alternative to conventional neural architectures; however, they struggle with long-range temporal dependencies due to fixed synaptic and membrane time…

神经与进化计算 · 计算机科学 2026-01-06 Sarim Chaudhry

Recently, brain-inspired computing models have shown great potential to outperform today's deep learning solutions in terms of robustness and energy efficiency. Particularly, Spiking Neural Networks (SNNs) and HyperDimensional Computing…

神经与进化计算 · 计算机科学 2021-10-04 Zhuowen Zou , Haleh Alimohamadi , Farhad Imani , Yeseong Kim , Mohsen Imani

Hardware-based spiking neural networks (SNNs) are regarded as promising candidates for the cognitive computing system due to low power consumption and highly parallel operation. In this work, we train the SNN in which the firing time…

神经与进化计算 · 计算机科学 2022-03-17 Seongbin Oh , Dongseok Kwon , Gyuho Yeom , Won-Mook Kang , Soochang Lee , Sung Yun Woo , Jang Saeng Kim , Min Kyu Park , Jong-Ho Lee