Zobrazeno 1 - 10
of 460
pro vyhledávání: '"Yoshida, Tsuyoshi"'
To efficiently find an optimum parameter combination in a large-scale problem, it is a key to convert the parameters into available variables in actual machines. Specifically, quadratic unconstrained binary optimization problems are solved with the h
Externí odkaz:
http://arxiv.org/abs/2407.02091
Tensor network methods have evolved from solving optimization problems in quantum many-body spin systems. While the tensor network is now regarded as a powerful tool in quantum computer simulation, there still exists a complexity issue in updating th
Externí odkaz:
http://arxiv.org/abs/2406.03010
Autor:
Xiafukaiti, Alifu, Garg, Devanshu, Hosaka, Aruto, Yanagisawa, Koichi, Minato, Yuichiro, Yoshida, Tsuyoshi
Convolutional neural networks (CNNs) have gained widespread usage across various fields such as weather forecasting, computer vision, autonomous driving, and medical image analysis due to its exceptional ability to extract spatial information, share
Externí odkaz:
http://arxiv.org/abs/2405.10946
Autor:
Hosaka, Aruto, Yanagisawa, Koichi, Koshikawa, Shota, Kudo, Isamu, Alifu, Xiafukaiti, Yoshida, Tsuyoshi
We apply preconditioning, which is widely used in classical solvers for linear systems $A\textbf{x}=\textbf{b}$, to the variational quantum linear solver. By utilizing incomplete LU factorization as a preconditioner for linear equations formed by $12
Externí odkaz:
http://arxiv.org/abs/2312.15657
Publikováno v:
IEEE Photonics Technology Letters,} vol.~33, no.~18, pp.~1034--1037, Sept.~2021
Although forward error-correction (FEC) coding is an essential part of modern fiber-optic communication systems, it is impractical to implement and evaluate FEC in transmission experiments and simulations. Therefore, it is desirable to accurately pre
Externí odkaz:
http://arxiv.org/abs/2102.10139
Publikováno v:
IEEE/OSA Journal of Lightwave Technology, vol. 39, no. 17, pp. 5412-5422, Sept. 2021
Probabilistic shaping (PS) has been widely studied and applied to optical fiber communications. The encoder of PS expends the number of bit slots and controls the probability distribution of channel input symbols. Not only studies focused on PS but a
Externí odkaz:
http://arxiv.org/abs/2102.03958
Publikováno v:
Proc. Optical Fiber Communication Conference (OFC), San Diego, CA, Mar. 2020
We investigated a suitable auxiliary channel setting and the gap between Q-factors with hard and soft demapping. The system margin definition should be reconsidered for systems employing complex coded modulation with soft forward error correction.
Externí odkaz:
http://arxiv.org/abs/2002.00560
Publikováno v:
Proc. European Conference on Optical Communication (ECOC), Dublin, Ireland, Sept. 2019
Performance monitoring is an essential function for margin measurements in live systems. Historically, system budgets have been described by the Q-factor converted from the bit error rate (BER) under binary modulation and direct detection. The introd
Externí odkaz:
http://arxiv.org/abs/1911.08641
Publikováno v:
IEEE/OSA Journal of Lightwave Technology, vol. 38, no. 16, pp. 4292-4306, Aug. 2020
Accurate performance benchmarking after forward error correction (FEC) decoding is essential for system design in optical fiber communications. Generalized mutual information (GMI) has been shown to be successful at benchmarking the bit-error rate (B
Externí odkaz:
http://arxiv.org/abs/1911.01585
Distribution matching and dematching (DM/invDM) are key functions in probabilistic shaping (PS). Recently techniques for low complexity implementation of DM/invDM have been well studied. Our previously proposed hierarchical DM (HiDM) is one of the go
Externí odkaz:
http://arxiv.org/abs/1906.05122