| Paper Abstract and Keywords |
| Presentation |
2006-05-11 16:20
A Method for Fluctuation Analysis in LFD Using Walsh Orthogonal Function System
Kenichi Kamijo (Toyo Univ.), Akiko Yamanouchi (IORI) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The local fractal dimension can be used as an index to indicate the characteristics or manners of the fluctuation in a given time series concerning observations for physical phenomena. A method for fluctuation analysis in LFD using Walsh orthogonal function system has been proposed in this paper. This method decomposes a given time series into several main basic pulses, sub-basic pulses and the other error pulses. The basic pulses have 1 degree of freedom respectively. Then the magnitude of these basic pulses can be tested in variance analysis with F-test based on the magnitude of the error pulses. The time series can be classified into several types with significant pulse names, which are ordered in sequence of the pulse magnitude. Several examples with LFD time series are shown in difference time series between altitudinal seawater temperatures by “Pulse Decomposition Method.” Some features have been found out in omens for various geophysical events. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
local fractal dimension / Walsh orthogonal function system / pulse decomposition / analysis of variance / difference time series between altitudinal seawater temperatures / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 30, NLP2006-9, pp. 43-48, May 2006. |
| Paper # |
NLP2006-9 |
| Date of Issue |
2006-05-04 (NLP) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
NLP |
| Conference Date |
2006-05-11 - 2006-05-11 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kumamoto Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
NLP |
| Conference Code |
2006-05-NLP |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Method for Fluctuation Analysis in LFD Using Walsh Orthogonal Function System |
| Sub Title (in English) |
|
| Keyword(1) |
local fractal dimension |
| Keyword(2) |
Walsh orthogonal function system |
| Keyword(3) |
pulse decomposition |
| Keyword(4) |
analysis of variance |
| Keyword(5) |
difference time series between altitudinal seawater temperatures |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Kenichi Kamijo |
| 1st Author's Affiliation |
Toyo University (Toyo Univ.) |
| 2nd Author's Name |
Akiko Yamanouchi |
| 2nd Author's Affiliation |
Izu Oceanics Research Institute (IORI) |
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| Speaker |
Author-1 |
| Date Time |
2006-05-11 16:20:00 |
| Presentation Time |
25 minutes |
| Registration for |
NLP |
| Paper # |
NLP2006-9 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.30 |
| Page |
pp.43-48 |
| #Pages |
6 |
| Date of Issue |
2006-05-04 (NLP) |