Results 21 to 30 of about 220,848 (275)

Nonlinear germanium-silicon photodiode for activation and monitoring in photonic neuromorphic networks

open access: yesNature Communications, 2022
Large-scale silicon-based integrated artificial neural networks lack of silicon-integrated optical neurons. Here, Yu et al, report a self-monitored all-optical neural network enabled by nonlinear germanium-silicon photodiodes, making the photonic neural ...
Yang Shi   +7 more
doaj   +1 more source

Feature Extraction From Images Using Integrated Photonic Convolutional Kernel

open access: yesIEEE Photonics Journal, 2022
Optical neural networks are expected to solve the problems of computational efficiency and energy consumption in neural networks. Herein, we experimentally implemented a 2 × 2 photonic convolutional kernel (PCK) using four on-chip micro-ring ...
Yulong Huang   +6 more
doaj   +1 more source

Machine learning approach for computing optical properties of a photonic crystal fiber [PDF]

open access: yes, 2019
Photonic crystal fibers (PCFs) are the specialized optical waveguides that led to many interesting applications ranging from nonlinear optical signal processing to high-power fiber amplifiers.
Aamir Gulistan   +30 more
core   +1 more source

Free-Space Optical Neural Network Based on Optical Nonlinearity and Pooling Operations

open access: yesIEEE Access, 2021
Despite various optical realizations of convolutional neural networks (CNNs), optical implementation of nonlinear activation functions and pooling operations are still challenging problems.
Hoda Sadeghzadeh   +2 more
doaj   +1 more source

A Comprehensive Survey on Nanophotonic Neural Networks: Architectures, Training Methods, Optimization, and Activations Functions

open access: yesSensors, 2022
In the last years, materializations of neuromorphic circuits based on nanophotonic arrangements have been proposed, which contain complete optical circuits, laser, photodetectors, photonic crystals, optical fibers, flat waveguides and other passive ...
Konstantinos Demertzis   +3 more
doaj   +1 more source

Optical implementation of the Hopfield model [PDF]

open access: yes, 1985
Optical implementation of content addressable associative memory based on the Hopfield model for neural networks and on the addition of nonlinear iterative feedback to a vector-matrix multiplier is described.
Farhat, Nabil H.   +3 more
core   +2 more sources

Training large-scale optoelectronic neural networks with dual-neuron optical-artificial learning

open access: yesNature Communications, 2023
Optoelectronic neural networks (ONN) are a promising avenue in AI computing due to their potential for parallelization, power efficiency, and speed.
Xiaoyun Yuan   +4 more
doaj   +1 more source

Performance analysis of different DCNN models in remote sensing image object detection

open access: yesEURASIP Journal on Image and Video Processing, 2022
In recent years, deep learning, especially deep convolutional neural networks (DCNN), has made great progress. Many researchers use different DCNN models to detect remote sensing targets. Different DCNN models have different advantages and disadvantages.
Huaijin Liu   +3 more
doaj   +1 more source

Event-driven adaptive optical neural network

open access: yesScience Advances, 2023
We present an adaptive optical neural network based on a large-scale event-driven architecture. In addition to changing the synaptic weights (synaptic plasticity), the optical neural network’s structure can also be reconfigured enabling various functionalities (structural plasticity).
Brückerhoff-Plückelmann, Frank   +11 more
openaire   +3 more sources

Quantum optical neural networks [PDF]

open access: yesnpj Quantum Information, 2019
AbstractPhysically motivated quantum algorithms for specific near-term quantum hardware will likely be the next frontier in quantum information science. Here, we show how many of the features of neural networks for machine learning can naturally be mapped into the quantum optical domain by introducing the quantum optical neural network (QONN).
Gregory R. Steinbrecher   +3 more
openaire   +2 more sources

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