Zobrazeno 1 - 10
of 6 662
pro vyhledávání: '"Yagishita, A."'
Autor:
Otsuki, Yuta, Yagishita, Shotaro
This paper proposes a new approach using the stochastic projected gradient method and Malliavin calculus for optimal reinsurance and investment strategies. Unlike traditional methodologies, we aim to optimize static investment and reinsurance strateg
Externí odkaz:
http://arxiv.org/abs/2411.05417
Autor:
Yagishita, Shotaro
The least trimmed squares (LTS) is a reasonable formulation of robust regression whereas it suffers from high computational cost due to the nonconvexity and nonsmoothness of its objective function. The most frequently used FAST-LTS algorithm is parti
Externí odkaz:
http://arxiv.org/abs/2410.04554
Autor:
Yagishita, Shotaro, Nakayama, Shummin
This paper proposes new proximal Newton-type methods with a diagonal metric for solving composite optimization problems whose objective function is the sum of a twice continuously differentiable function and a proper closed directionally differentiab
Externí odkaz:
http://arxiv.org/abs/2310.06789
Autor:
Zhilei Zhao, Naohiro Okada, Sho Yagishita, Noriaki Yahata, Nobuhiro Nitta, Sayaka Shibata, Yoshifumi Abe, Susumu Morita, Eureka Kumagai, Kenji F. Tanaka, Tetsuya Suhara, Toru Takumi, Kiyoto Kasai, Seiichiro Jinde
Publikováno v:
Neuroscience Research, Vol 209, Iss , Pp 42-49 (2024)
Duplication of chromosome 15q11–13 has been reported to be one of the most frequent cytogenetic copy number variations in autism spectrum disorder (ASD), and a mouse model of paternal 15q11–13 duplication was generated, termed 15q dup mice. While
Externí odkaz:
https://doaj.org/article/ec2e805d18f54eeab7fd8d796247edf2
Autor:
Okuno, Akifumi, Yagishita, Shotaro
In this study, we consider outlier-robust predictive modeling using highly-expressive neural networks. To this end, we employ (1) a transformed trimmed loss (TTL), which is a computationally feasible variant of the classical trimmed loss, and (2) a h
Externí odkaz:
http://arxiv.org/abs/2308.02293
Autor:
Yagishita, Shotaro, Gotoh, Jun-ya
This paper presents a new approach to selecting knots at the same time as estimating the B-spline regression model. Such simultaneous selection of knots and model is not trivial, but our strategy can make it possible by employing a nonconvex regulari
Externí odkaz:
http://arxiv.org/abs/2304.02306
Autor:
Yuri Takehara, Hiroko Tsunoda, Junko Takei, Kumiko Kida, Hideko Yamauchi, Kazuyo Yagishita, Atsushi Yoshida
Publikováno v:
BMC Women's Health, Vol 24, Iss 1, Pp 1-11 (2024)
Abstract Background This study aimed to assess the recognition and understanding of breast awareness (BA) among hospital staff, a group considered influential in disseminating information about health. Compared to the traditional approach of breast s
Externí odkaz:
https://doaj.org/article/4cf4bd651eb546c58c60bc0685dc3e30
Autor:
Takeru Nagayama, Sosuke Yagishita, Megumi Shibata, Akiko Furuno, Takashi Saito, Takaomi C. Saido, Shuji Wakatsuki, Toshiyuki Araki
Publikováno v:
Neuroscience Research, Vol 205, Iss , Pp 40-46 (2024)
Sleep apnea is regarded as an important risk factor in the pathogenesis of Alzheimer disease (AD). Chronic intermittent hypoxia treatment (IHT) given during the sleep period of the circadian cycle in experimental animals is a well-established sleep a
Externí odkaz:
https://doaj.org/article/2970af987d6f457b9f2fbe1bf4d1e0a0
Autor:
Koji Murofushi, Hiroki Katagiri, Sho Mitomo, Kenji Hirohata, Hidetaka Furuya, Ryoichi Hanazawa, Akihiro Hirakawa, Kazuyoshi Yagishita, Koji Kaneoka
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract The KOJI AWARENESS (KA) screening test assesses motor function in humans. We aimed to analyze the correlation between age and KA screening scores and to identify the specific age at which a significant decline occurs. A total of 793 healthy
Externí odkaz:
https://doaj.org/article/14fc700e207b4a5980aa9501ce41025c
Autor:
Kentaro Goto, Shinsuke Miyazaki, Takuya Oyaizu, Miho Negishi, Takashi Ikenouchi, Tasuku Yamamoto, Iwanari Kawamura, Takuro Nishimura, Tomomasa Takamiya, Susumu Tao, Masateru Takigawa, Kazuyoshi Yagishita, Tetsuo Sasano
Publikováno v:
Journal of Arrhythmia, Vol 40, Iss 4, Pp 958-964 (2024)
Abstract Introduction The safety of hyperbaric oxygen treatment (HBO2) in patients with cardiovascular implanted electronic devices (CIED) remains unclear. Methods We conducted a retrospective analysis of seven CIED patients (median age 79 [73–83]
Externí odkaz:
https://doaj.org/article/0ce7dfd1b59c4e81aee5f01784128e6d