A Microring as a Reservoir Computing Node: Memory/Nonlinear Tasks and Effect of Input Non-ideality
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2022
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866914840387256320 |
|---|---|
| author | Bazzanella, Davide Biasi, Stefano Mancinelli, Mattia Pavesi, Lorenzo |
| author_facet | Bazzanella, Davide Biasi, Stefano Mancinelli, Mattia Pavesi, Lorenzo |
| contents | The nonlinear response of an optical microresonator is used in a time multiplexed reservoir computing neural network. Within a virtual node approach combined with an offline training through ridge regression, we solved linear and nonlinear logic operations. We analyzed the nonlinearity of the microresonator as a memory between bits and/or as a neural activation function. This is made possible by controlling both the distance between bits subject to the logical operation and the number of bits supplied to the ridge regression. We show that the optical microresonator exhibits up to two bits of memory in linear tasks and that it allows solving nonlinear tasks providing both memory and nonlinearity. Finally, we demonstrate that the virtual node approach always requires a comparison of the reservoir's performance with the results obtained by applying the same training process on the input signal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2203_07045 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | A Microring as a Reservoir Computing Node: Memory/Nonlinear Tasks and Effect of Input Non-ideality Bazzanella, Davide Biasi, Stefano Mancinelli, Mattia Pavesi, Lorenzo Emerging Technologies Optics The nonlinear response of an optical microresonator is used in a time multiplexed reservoir computing neural network. Within a virtual node approach combined with an offline training through ridge regression, we solved linear and nonlinear logic operations. We analyzed the nonlinearity of the microresonator as a memory between bits and/or as a neural activation function. This is made possible by controlling both the distance between bits subject to the logical operation and the number of bits supplied to the ridge regression. We show that the optical microresonator exhibits up to two bits of memory in linear tasks and that it allows solving nonlinear tasks providing both memory and nonlinearity. Finally, we demonstrate that the virtual node approach always requires a comparison of the reservoir's performance with the results obtained by applying the same training process on the input signal. |
| title | A Microring as a Reservoir Computing Node: Memory/Nonlinear Tasks and Effect of Input Non-ideality |
| topic | Emerging Technologies Optics |
| url | https://arxiv.org/abs/2203.07045 |