Zobrazeno 1 - 10
of 211
pro vyhledávání: '"Mariko I"'
Publikováno v:
PLoS ONE, Vol 19, Iss 4, p e0301462 (2024)
Transactions in financial markets are not evenly spaced but can be concentrated within a short period of time. In this study, we investigated the factors that determine the transaction frequency in financial markets. Specifically, we employed the Haw
Externí odkaz:
https://doaj.org/article/bd5f4318934848fea28a4190b41fc981
Autor:
Mariko I Ito, Akira Sasaki
Publikováno v:
PLoS ONE, Vol 18, Iss 2, p e0282062 (2023)
Aggregation of opinions often results in high decision-making accuracy, owing to the collective intelligence effect. Studies on group decisions have examined the optimum weights for opinion aggregation to maximise accuracy. In addition to the optimum
Externí odkaz:
https://doaj.org/article/8f7db16d4bc14ffcb3bbde498cff27b3
Autor:
Mariko I. Ito, Takaaki Ohnishi
Publikováno v:
Applied Network Science, Vol 6, Iss 1, Pp 1-19 (2021)
Abstract The relationship between culture and the appeals in TV advertisements has been extensively studied. We attempted to reveal the image structure produced by TV commercials in Japan, which may show the cultural features of the country, and to e
Externí odkaz:
https://doaj.org/article/371eb437792844f1a2c2655d7754ef75
Autor:
Mariko I. Ito, Takaaki Ohnishi
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
The spatial distribution of a population is not homogeneous—some areas attract many residents, while others do not. The spatial distribution of stores and facilities that have been coevolving with that of the population is also heterogeneous. Previ
Externí odkaz:
https://doaj.org/article/d225cca5ded340658df752188e310758
Publikováno v:
PLoS ONE, Vol 13, Iss 3, p e0193983 (2018)
Individuals often refer to opinions of others when they make decisions in the real world. Our question is how the people's reference structure self-organizes when people try to provide correct answers by referring to more accurate agents. We construc
Externí odkaz:
https://doaj.org/article/909498e22cbd4aabb21f667bb9da184a
Autor:
Ito, Mariko I.1 (AUTHOR), Honma, Yudai1 (AUTHOR) yudai@iis.u-tokyo.ac.jp, Ohnishi, Takaaki2 (AUTHOR), Watanabe, Tsutomu3 (AUTHOR), Aihara, Kazuyuki4 (AUTHOR)
Publikováno v:
PLoS ONE. 4/17/2024, Vol. 19 Issue 4, p1-23. 23p.
Autor:
Ito, Mariko I., Ohnishi, Takaaki
Multifractality is one of the patterns observed in spatial distributions of populations. In this study, we performed multifractal analysis for populations by age group in the capital area of Japan. Each population group generally exhibited the proper
Externí odkaz:
http://arxiv.org/abs/2005.03935
Autor:
Ito, Mariko I., Ohnishi, Takaaki
In cheminformatics, network representations of the space of compounds have been suggested extensively. Among these, the threshold-network consists of nodes representing molecules. In this network representation, two molecules are connected by a link
Externí odkaz:
http://arxiv.org/abs/1911.05259
Autor:
Ito, Mariko I.1 (AUTHOR) m-ito@iis.u-tokyo.ac.jp, Sasaki, Akira2,3 (AUTHOR)
Publikováno v:
PLoS ONE. 2/24/2023, Vol. 17 Issue 2, p1-19. 19p.
Publikováno v:
The Review of Socionetwork Strategies. 16:545-557
Currently in Japan, summaries of the number of bankruptcies due to the spread of COVID-19 can only be obtained from surveys conducted by a few research firms targeting particular companies. In this study, we used Japanese telephone directory data con