Search Results for author: Ramtin Zand

Found 17 papers, 1 papers with code

Realtime Facial Expression Recognition: Neuromorphic Hardware vs. Edge AI Accelerators

no code implementations30 Jan 2024 Heath Smith, James Seekings, Mohammadreza Mohammadi, Ramtin Zand

The paper focuses on real-time facial expression recognition (FER) systems as an important component in various real-world applications such as social robotics.

Facial Expression Recognition Facial Expression Recognition (FER)

Facial Expression Recognition at the Edge: CPU vs GPU vs VPU vs TPU

no code implementations17 May 2023 Mohammadreza Mohammadi, Heath Smith, Lareb Khan, Ramtin Zand

Facial Expression Recognition (FER) plays an important role in human-computer interactions and is used in a wide range of applications.

Facial Expression Recognition Facial Expression Recognition (FER)

A Novel Stochastic LSTM Model Inspired by Quantum Machine Learning

no code implementations17 May 2023 Joseph Lindsay, Ramtin Zand

Works in quantum machine learning (QML) over the past few years indicate that QML algorithms can function just as well as their classical counterparts, and even outperform them in some cases.

Quantum Machine Learning Visual Question Answering (VQA)

Heterogeneous Integration of In-Memory Analog Computing Architectures with Tensor Processing Units

no code implementations18 Apr 2023 Mohammed E. Elbtity, Brendan Reidy, Md Hasibul Amin, Ramtin Zand

To leverage the strengths of TPUs for convolutional layers and IMAC circuits for dense layers, we propose a unified learning algorithm that incorporates mixed-precision training techniques to mitigate potential accuracy drops when deploying models on the TPU-IMAC architecture.

Edge-computing

IMAC-Sim: A Circuit-level Simulator For In-Memory Analog Computing Architectures

1 code implementation18 Apr 2023 Md Hasibul Amin, Mohammed E. Elbtity, Ramtin Zand

Thus, in this paper, we develop IMAC-Sim, a circuit-level simulator for the design space exploration of IMAC architectures.

Energy-Efficient Deployment of Machine Learning Workloads on Neuromorphic Hardware

no code implementations10 Oct 2022 Peyton Chandarana, Mohammadreza Mohammadi, James Seekings, Ramtin Zand

In recent years, several edge deep learning hardware accelerators have been released that specifically focus on reducing the power and area consumed by deep neural networks (DNNs).

Edge-computing Image Classification +2

Reliability-Aware Deployment of DNNs on In-Memory Analog Computing Architectures

no code implementations2 Oct 2022 Md Hasibul Amin, Mohammed Elbtity, Ramtin Zand

Conventional in-memory computing (IMC) architectures consist of analog memristive crossbars to accelerate matrix-vector multiplication (MVM), and digital functional units to realize nonlinear vector (NLV) operations in deep neural networks (DNNs).

Static Hand Gesture Recognition for American Sign Language using Neuromorphic Hardware

no code implementations25 Jul 2022 Mohammadreza Mohammadi, Peyton Chandarana, James Seekings, Sara Hendrix, Ramtin Zand

The best DNN model achieves an accuracy of 99. 93% on the ASL Alphabet dataset, whereas the best performing SNN model has an accuracy of 99. 30%.

Edge-computing Hand Gesture Recognition +1

MRAM-based Analog Sigmoid Function for In-memory Computing

no code implementations21 Apr 2022 Md Hasibul Amin, Mohammed Elbtity, Mohammadreza Mohammadi, Ramtin Zand

We propose an analog implementation of the transcendental activation function leveraging two spin-orbit torque magnetoresistive random-access memory (SOT-MRAM) devices and a CMOS inverter.

Interconnect Parasitics and Partitioning in Fully-Analog In-Memory Computing Architectures

no code implementations29 Jan 2022 Md Hasibul Amin, Mohammed Elbtity, Ramtin Zand

Fully-analog in-memory computing (IMC) architectures that implement both matrix-vector multiplication and non-linear vector operations within the same memory array have shown promising performance benefits over conventional IMC systems due to the removal of energy-hungry signal conversion units.

An Adaptive Sampling and Edge Detection Approach for Encoding Static Images for Spiking Neural Networks

no code implementations19 Oct 2021 Peyton Chandarana, Junlin Ou, Ramtin Zand

Herein, we propose a method for encoding static images into temporal spike trains using edge detection and an adaptive signal sampling method for use in SNNs.

Edge Detection Image Classification

An In-Memory Analog Computing Co-Processor for Energy-Efficient CNN Inference on Mobile Devices

no code implementations24 May 2021 Mohammed Elbtity, Abhishek Singh, Brendan Reidy, Xiaochen Guo, Ramtin Zand

In this paper, we develop an in-memory analog computing (IMAC) architecture realizing both synaptic behavior and activation functions within non-volatile memory arrays.

A Single-Cycle MLP Classifier Using Analog MRAM-based Neurons and Synapses

no code implementations4 Dec 2020 Ramtin Zand

In this paper, spin-orbit torque (SOT) magnetoresistive random-access memory (MRAM) devices are leveraged to realize sigmoidal neurons and binarized synapses for a single-cycle analog in-memory computing (IMC) architecture.

TSV Extrusion Morphology Classification Using Deep Convolutional Neural Networks

no code implementations22 Sep 2020 Brendan Reidy, Golareh Jalilvand, Tengfei Jiang, Ramtin Zand

Results obtained show that the CNN model with optimized complexity, dropout, and data augmentation can achieve a classification accuracy comparable to that of a human expert.

Data Augmentation General Classification +1

SOT-MRAM based Sigmoidal Neuron for Neuromorphic Architectures

no code implementations1 Jun 2020 Brendan Reidy, Ramtin Zand

In this paper, the intrinsic physical characteristics of spin-orbit torque (SOT) magnetoresistive random-access memory (MRAM) devices are leveraged to realize sigmoidal neurons in neuromorphic architectures.

SNRA: A Spintronic Neuromorphic Reconfigurable Array for In-Circuit Training and Evaluation of Deep Belief Networks

no code implementations8 Jan 2019 Ramtin Zand, Ronald F. DeMara

In this paper, a spintronic neuromorphic reconfigurable Array (SNRA) is developed to fuse together power-efficient probabilistic and in-field programmable deterministic computing during both training and evaluation phases of restricted Boltzmann machines (RBMs).

Composable Probabilistic Inference Networks Using MRAM-based Stochastic Neurons

no code implementations28 Nov 2018 Ramtin Zand, Kerem Y. Camsari, Supriyo Datta, 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 (DBNs).

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