no code implementations • 27 Dec 2023 • Felix Köster, Kazutaka Kanno, Jun Ohkubo, Atsushi Uchida
Photonic reservoir computing has been recently utilized in time series forecasting as the need for hardware implementations to accelerate these predictions has increased.
no code implementations • 15 Feb 2023 • Tomoya Yamaguchi, Kohei Arai, Tomoaki Niiyama, Atsushi Uchida, Satoshi Sunada
This approach allows for compressive acquisitions of visual information with a single channel at gigahertz rates, outperforming conventional approaches, and enables its direct photonic processing using a photonic reservoir computer in a time domain.
no code implementations • 12 Oct 2022 • Kensei Morijiri, Kento Takehana, Takatomo Mihana, Kazutaka Kanno, Makoto Naruse, Atsushi Uchida
We solve a 512-armed bandit problem online, which is much larger than previous experiments by two orders of magnitude.
no code implementations • 19 May 2022 • Takashi Urushibara, Nicolas Chauvet, Satoshi Kochi, Satoshi Sunada, Kazutaka Kanno, Atsushi Uchida, Ryoichi Horisaki, Makoto Naruse
Q-learning is a well-known approach in reinforcement learning that can deal with many states.
no code implementations • 12 May 2022 • Ryugo Iwami, Takatomo Mihana, Kazutaka Kanno, Satoshi Sunada, Makoto Naruse, Atsushi Uchida
In this paper, we propose a method for controlling the chaotic itinerancy in a multi-mode semiconductor laser to solve a machine learning task, known as the multi-armed bandit problem, which is fundamental to reinforcement learning.
no code implementations • 22 May 2021 • Satoshi Sunada, Atsushi Uchida
In contrast to existing photonic neural networks, the photonic neural field is a spatially continuous field that nonlinearly responds to optical inputs, and its high spatial degrees of freedom allow for large-scale and high-density neural processing on a millimeter-scale chip.
no code implementations • 27 Apr 2020 • Kazutaka Kanno, Makoto Naruse, Atsushi Uchida
Here, we propose a scheme of adaptive model selection in photonic reservoir computing using reinforcement learning.
no code implementations • 29 Jul 2019 • Tomoaki Niiyama, Genki Furuhata, Atsushi Uchida, Makoto Naruse, Satoshi Sunada
Decision making is a fundamental capability of living organisms, and has recently been gaining increasing importance in many engineering applications.
no code implementations • 24 May 2019 • Makoto Naruse, Takashi Matsubara, Nicolas Chauvet, Kazutaka Kanno, Tianyu Yang, Atsushi Uchida
Here we utilize chaotic time series generated experimentally by semiconductor lasers for the latent variables of GAN whereby the inherent nature of chaos can be reflected or transformed into the generated output data.
no code implementations • 26 Mar 2018 • Makoto Naruse, Takatomo Mihana, Hirokazu Hori, Hayato Saigo, Kazuya Okamura, Mikio Hasegawa, Atsushi Uchida
In this study, we demonstrated a scalable, pipelined principle of resolving the multi-armed bandit problem by introducing time-division multiplexing of chaotically oscillated ultrafast time-series.
no code implementations • 14 Apr 2017 • Makoto Naruse, Yuta Terashima, Atsushi Uchida, Song-Ju Kim
Reinforcement learning involves decision making in dynamic and uncertain environments, and constitutes one important element of artificial intelligence (AI).