Zobrazeno 1 - 10
of 470
pro vyhledávání: '"Hideki, Yagi"'
Autor:
Ryo Nomura, Hideki Yagi
Publikováno v:
Entropy, Vol 26, Iss 9, p 766 (2024)
Two typical fixed-length random number generation problems in information theory are considered for general sources. One is the source resolvability problem and the other is the intrinsic randomness problem. In each of these problems, the optimum ach
Externí odkaz:
https://doaj.org/article/4cbd80ccf92740b9adefd769e719fc2d
Autor:
Takeshi Aoki, Yuhki Itoh, Kosuke Fujii, Hiroyuki Yoshinaga, Naoki Fujiwara, Makoto Ogasawara, Yusuke Sawada, Rei Tanaka, Hideki Yagi, Masaki Yanagisawa, Masahiro Yoshida, Takuya Inoue, Menaka De Zoysa, Kenji Ishizaki, Susumu Noda
Publikováno v:
Applied Physics Express, Vol 17, Iss 4, p 042004 (2024)
1550 nm wavelength photonic-crystal surface-emitting lasers (PCSELs) are attractive for optical communication and eye-safe sensing applications. In this study, we present InP-based PCSELs featuring a double-lattice photonic-crystal structure designed
Externí odkaz:
https://doaj.org/article/c06eeba2cc464d359a7df0fa3820fbbc
Autor:
Hideki Yagi, Te Sun Han
Publikováno v:
Entropy, Vol 25, Iss 10, p 1466 (2023)
We introduce the problem of variable-length (VL) source resolvability, in which a given target probability distribution is approximated by encoding a VL uniform random number, and the asymptotically minimum average length rate of the uniform random n
Externí odkaz:
https://doaj.org/article/2d485872a88e4a6db9f230ee89deb231
Autor:
Naruki Shinohara, Hideki Yagi
Publikováno v:
Entropy, Vol 25, Iss 6, p 921 (2023)
The utilization of databases such as IoT has progressed, and understanding how to protect the privacy of data is an important issue. As pioneering work, in 1983, Yamamoto assumed the source (database), which consists of public information and private
Externí odkaz:
https://doaj.org/article/3cf22356403d42cca8df86b528d121b0
Autor:
Hiroto Kuramata, Hideki Yagi
Publikováno v:
Entropy, Vol 24, Iss 5, p 635 (2022)
We consider a binary classification problem for a test sequence to determine from which source the sequence is generated. The system classifies the test sequence based on empirically observed (training) sequences obtained from unknown sources P1 and
Externí odkaz:
https://doaj.org/article/27ad196ae7054b22a83b5bd56b13fef7
Autor:
Kazuyoshi Kobayashi, Kei Ando, Hideki Yagi, Kenyu Ito, Mikito Tsushima, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Kyotaro Ota, Yukihiro Matsuyama, Naoki Ishiguro, Shiro Imagama
Publikováno v:
Asian Spine Journal, Vol 12, Iss 4, Pp 662-668 (2018)
Study Design Retrospective study. Purpose To examine the relationship between postoperative bowel bladder disorder (BBD) and the efficacy of needle electrodes for the external anal sphincter (EAS) in intraoperative spinal cord monitoring with transcr
Externí odkaz:
https://doaj.org/article/a73ec80d9bfe4442863eaf5448f08299
Publikováno v:
Entropy, Vol 23, Iss 8, p 1049 (2021)
In the present paper, we investigate the fundamental trade-off of identification, secret-key, storage, and privacy-leakage rates in biometric identification systems for remote or hidden Gaussian sources. We use a technique of converting the system to
Externí odkaz:
https://doaj.org/article/8895eb9435de4d9cab3d20969a4bc1d2
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :363-371
In this paper, applying the technique of the DS2 bound, we derive an upper bound on the error probability of mismatched decoding with the ensemble of linear block codes, which was defined by Hof, Sason and Shamai. Assuming the ensemble of random line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37b5914df02b7290ec0305ca4449f333
https://doi.org/10.1587/transfun.2021tap0001
https://doi.org/10.1587/transfun.2021tap0001
Autor:
Takuya Okimoto, Yusuke Ohkura, Satoru Okamoto, Kazuhiko Horino, Munetaka Kurokawa, Kouichiro Yamazaki, Yoshihiro Yoneda, Mitsuru Ekawa, Masaru Takechi, Hideki Yagi, Koji Ebihara
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 28:1-7
This paper reports on the performance of an InP-based butt-joint (BJ) coupled waveguide photodiode (PD) for 100 GBaud coherent detection. We adopt a dual-layer absorber comprised of p- and i-type GaInAs absorption layers to enhance the advantage of B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b9408081363c3c00784b9699e5bb05b
https://doi.org/10.1109/jstqe.2021.3108785
https://doi.org/10.1109/jstqe.2021.3108785
Autor:
Takuya Okimoto, Hideki Yagi, Ken Ashizawa, Kouichiro Yamazaki, Koji Ebihara, Satoru Okamoto, Kazuhiko Horino, Munetaka Kurokawa, Yoshiyuki Sugimoto, Seiji Kumagai, null Tanaka, Masaru Takechi, Mitsuru Ekawa, Yoshihiro Yoneda
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
An InP-based coherent receiver PIC with waveguide PDs demonstrates 80-GHz bandwidth and high responsivity of 0.156 A/W at a wavelength of 1.55 µm. A coherent receiver module with PICs and TIAs performs sufficient characteristics for 128-GBaud transm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf90d2a6004eec52dc4e2be7baf3439c
https://doi.org/10.23919/ofc49934.2023.10117325
https://doi.org/10.23919/ofc49934.2023.10117325