2022
DOI: 10.1103/physreve.105.044212
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Dynamic effects on reservoir computing with a Hopf oscillator

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Cited by 9 publications
(4 citation statements)
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“…Most nonlinear oscillator-based physical reservoir computers must use time-delayed feedback, which is cumbersome as it would require digital-to-analog and analog-to-digital converters. However, the Hopf oscillator is capable of storing enough information in its dynamic states to avoid this 24 , 25 . Moreover, the presented architecture is robust to noise because of the Hopf oscillator’s nonlinearity, which is important for real-world audio processing applications.…”
Section: Discussionmentioning
confidence: 99%
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“…Most nonlinear oscillator-based physical reservoir computers must use time-delayed feedback, which is cumbersome as it would require digital-to-analog and analog-to-digital converters. However, the Hopf oscillator is capable of storing enough information in its dynamic states to avoid this 24 , 25 . Moreover, the presented architecture is robust to noise because of the Hopf oscillator’s nonlinearity, which is important for real-world audio processing applications.…”
Section: Discussionmentioning
confidence: 99%
“…In this paper, we present the results of sound signal recognition using reservoir computing technology consisting of a Hopf oscillator 24 , 25 . Instead of employing computationally expensive preprocessing (e.g., Mel spectrum) commonly used in other studies 15 , 17 , 20 , 30 , we directly take the outputs from the Hopf circuit to process the normalized audio signal for machine learning recognition.…”
Section: Discussionmentioning
confidence: 99%
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“…However, oscillators are capable of other types of computation as well, even without adaptive states. For instance, the classical, non-adaptive Hopf oscillator can be realized as a powerful, reconfigurable reservoir computer (Shougat et al 2021b(Shougat et al , 2022. In this reservoir computing architecture, the physics of the oscillator are utilized as a computational resource through machine learning.…”
Section: Introductionmentioning
confidence: 99%