Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Ken Umeno"'
Autor:
Masaru Shintani, Ken Umeno
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract The booking curve time series in perishable asset industries, including hotels, has been studied to manage a demand-supply condition or revenue management (RM). However, due to changing times, e.g., economy and technology, many RM practition
Externí odkaz:
https://doaj.org/article/6c37a1da0103499aa8267236d232217c
Autor:
Pavlos I. Zitis, Shinji Kakinaka, Ken Umeno, Stavros G. Stavrinides, Michael P. Hanias, Stelios M. Potirakis
Publikováno v:
Entropy, Vol 25, Iss 12, p 1622 (2023)
The COVID-19 pandemic has had an unprecedented impact on the global economy and financial markets. In this article, we explore the impact of the pandemic on the weak-form efficiency of the cryptocurrency and forex markets by conducting a comprehensiv
Externí odkaz:
https://doaj.org/article/d8309d761b154fe5b7be4546f86f323d
Publikováno v:
Reproductive Medicine and Biology, Vol 21, Iss 1, Pp n/a-n/a (2022)
Abstract Background Ovaries, the source of oocytes, maintain the numbers of primordial follicles, develop oocytes for fertilization and embryonic development. Although it is well known that about two‐thirds of oocytes are lost during the formation
Externí odkaz:
https://doaj.org/article/5470d923ec164641a7598527f51ec1f5
Autor:
Pavlos I. Zitis, Shinji Kakinaka, Ken Umeno, Michael P. Hanias, Stavros G. Stavrinides, Stelios M. Potirakis
Publikováno v:
Entropy, Vol 25, Iss 2, p 214 (2023)
This article investigates the dynamical complexity and fractal characteristics changes of the Bitcoin/US dollar (BTC/USD) and Euro/US dollar (EUR/USD) returns in the period before and after the outbreak of the COVID-19 pandemic. More specifically, we
Externí odkaz:
https://doaj.org/article/8e7828a84c0f49a7b1224463946a4a58
Publikováno v:
JSIAM Letters. 15:41-44
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310f0fb8d6ff4a44ef287db70a0a704c
https://doi.org/10.14495/jsiaml.15.41
https://doi.org/10.14495/jsiaml.15.41
Autor:
Hiroki Tanaka, Ken Umeno
Publikováno v:
Journal of the Physical Society of Japan; 2/15/2024, Vol. 93 Issue 2, p1-26, 26p
Publikováno v:
International Journal of Plasma Environmental Science & Technology (IJPEST); 2024, Vol. 18 Issue 1, p1-8, 8p
Publikováno v:
IEEE Transactions on Information Theory. 68:2674-2683
Maurer's universal statistical test can widely detect non-randomness of given sequences. Coron proposed an improved test, and further Yamamoto and Liu proposed a new test based on Coron's test. These tests use normal distributions as their reference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3970a9374393da75634daff6570118c7
https://doi.org/10.1109/tit.2021.3131691
https://doi.org/10.1109/tit.2021.3131691
Autor:
Hiroki Tanaka, Ken Umeno
Publikováno v:
Journal of the Physical Society of Japan; 11/15/2023, Vol. 92 Issue 11, p113001-1-113001-4, 4p
Autor:
Masaru Shintani, Ken Umeno
Publikováno v:
JSIAM Letters. 14:49-52
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e4f0ef49b11df4f36632aace1af7d09
https://doi.org/10.14495/jsiaml.14.49
https://doi.org/10.14495/jsiaml.14.49