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Miyamura, Hiroko; Kawamura, Takuma; Suzuki, Yoshio; Idomura, Yasuhiro; Takemiya, Hiroshi
Joho Shori Gakkai Rombunshi, 55(9), p.2216 - 2224, 2014/09
In numerical simulations, variations of calculation results with respect to a variable axis are often observed. When the target model is given in 3D, the simulation results become 4D. Such a multi-dimensional dataset given in more than 4D space is analyzed by detailed explorations of regions of interest (ROIs) in multi-dimensional space. However, for high-dimensional and large-scale datasets, this approach requires enormous processing time and effort, and may have difficulty in capturing all the ROIs. Therefore, we propose a technique that is based on a concept of spatiotemporal image. In our technique, a space axis is created by octree, a variable axis is defined in the direction perpendicular to the space axis. Our technique is applied to the results of 3D seismic simulations of a nuclear plant, and regions with characteristic frequency responses of each region are analyzed. Through the analyses, it is demonstrated that our technique can effectively capture ROIs from 4D datasets.
Miyamura, Hiroko; Shinano, Yuji*; Miyashiro, Ryuhei*; Saito, Takafumi*
Joho Shori Gakkai Rombunshi; Suri Moderuka To Oyo (Internet), 2(2), p.103 - 112, 2009/03
In branch-and-bound algorithms for integer programming, runtime behavior of the algorithms depends much on branching strategy. However, from a huge computation log of a large program, it is difficult to explore a key factor for effective branching. To analyze which factor of branching strategy is essential, we develop a system for visualization of growing process of a large branch-and-bound tree. The proposed system provides intuitive understanding how branching strategy affects branch-and-bound process.
Kashiwagi, Hiroe*; Takata, Masami*; Sasaki, Akira; Jo, Kazuki*
Joho Shori Gakkai Rombunshi; Suri Moderuka To Oyo (Internet), 48(SIG15), p.189 - 198, 2007/10
no abstracts in English
Yamada, Susumu; Machida, Masahiko; Imamura, Toshiyuki*
Joho Shori Gakkai Rombunshi; Komputeingu Shisutemu (Internet), 45(SIG6(ACS6)), p.161 - 170, 2004/05
no abstracts in English
Koide, Hiroshi; Yamagishi, Nobuhiro*; Takemiya, Hiroshi*; Kasahara, Hironori*
Joho Shori Gakkai Rombunshi, 42(3), p.65 - 73, 2001/03
no abstracts in English
Osoda, Tsutomu*; Maruyama, Kunihide*; Washio, Takumi*; Doi, Shun*; Yamada, Susumu
Joho Shori Gakkai Rombunshi, 41(SIG8), p.92 - 100, 2000/11
no abstracts in English
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Joho Shori Gakkai Rombunshi, 39(3), p.529 - 541, 1998/03
no abstracts in English
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Joho Shori Gakkai Rombunshi, 27(9), p.880 - 891, 1986/00
no abstracts in English
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Joho Shori Gakkai Rombunshi, 26(5), p.807 - 814, 1985/00
no abstracts in English
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Joho Shori Gakkai Rombunshi, 24(1), p.8 - 14, 1983/00
no abstracts in English
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Joho Shori Gakkai Rombunshi, 23(5), p.529 - 537, 1982/00
no abstracts in English
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Joho Shori Gakkai Rombunshi, 23(6), p.676 - 684, 1982/00
no abstracts in English
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Joho Shori Gakkai Rombunshi, 21(6), p.442 - 453, 1980/00
no abstracts in English
