| Presentation | 1993/4/23 Dipole-localization in a brain by the optimization algorithms Tomonori Iijima, Hiroshi Abe, Tetsuji Tanigawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We compared algorithms for minimizing the residual sum of squares between the measured and calculated scalp potentials for numerical dipole-localization in a brain.We applied five optimization algorithms (two nonlinear programing,three nonlinear least squares method) to the dipole-localization in a 3-layer spherical model.According to the result,the hybrid method by Powell gave the fastest and most stable convergence.However,in four of the algorithms including the hybrid method,at least one case was recognized where the dipole-location was obtained outside the brain.To avoid this difficulty,we propose to introduce a constrained nonlinear least squares method,and obtained the dipole location correctly. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | dipole-localization in a brain / optimization algorithm / nonlinear programing / nonlinear squares method / constrained nonlinear least squares method |
| Paper # | MBE93-6 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1993/4/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dipole-localization in a brain by the optimization algorithms |
| Sub Title (in English) | |
| Keyword(1) | dipole-localization in a brain |
| Keyword(2) | optimization algorithm |
| Keyword(3) | nonlinear programing |
| Keyword(4) | nonlinear squares method |
| Keyword(5) | constrained nonlinear least squares method |
| 1st Author's Name | Tomonori Iijima |
| 1st Author's Affiliation | NEC C&C Information Technology Research Laboratories() |
| 2nd Author's Name | Hiroshi Abe |
| 2nd Author's Affiliation | NEC C&C Information Technology Research Laboratories |
| 3rd Author's Name | Tetsuji Tanigawa |
| 3rd Author's Affiliation | NEC C&C Information Technology Research Laboratories |
| Date | 1993/4/23 |
| Paper # | MBE93-6 |
| Volume (vol) | vol.93 |
| Number (no) | 13 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |