Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2007-09-16 |
タイトル |
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タイトル |
Independent Component Analysis by Evolutionary Neural Networks |
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言語 |
en |
作成者 |
Zeng, Xiang-Yan
Chen, Yen-Wei
Nakao, Zensho
Yamashita, Katsumi
陳, 延偉
仲尾, 善勝
山下, 勝己
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Blind source separation |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Independent Component Analysis |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Genetic Algorithm |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Kurtosis |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
In this paper, we propose an evolutionary neural network for blind source separation (BSS). The BSS is the problem to obtain the independent components of original source signals from mixed signals. The original sources that are mutually independent and are mixed linearly by an unknown matrix are retrieved by a separating procedure based on Independent Component Analysis (ICA). The goal of ICA is to find a separating matrix so that the separated signals are as independent as possible. In neural realizations, separating matrix is represented as connection weights of networks and usually updated by learning formulae. The effectiveness of the algorithms, however, is affected by the neuron activation functions that depend on the probability distribution of the signals. In our method, the network is evolved by Genetic Algorithm (GA) that does not need activation functions and works on evolutionary mechanism. The kurtosis that is a simple and original criterion for independence is used as the fitness function of GA. After learning, the network can be used to separate additional signals different from training set but mixed by the same matrix. The applicability of the proposed method for blind source separation is demonstrated by the simulation results. |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
紀要論文 |
出版者 |
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言語 |
ja |
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出版者 |
琉球大学工学部 |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
departmental bulletin paper |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/1959 |
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識別子タイプ |
HDL |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0389-102X |
収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN0025048X |
収録物名 |
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言語 |
ja |
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収録物名 |
琉球大学工学部紀要 |
書誌情報 |
号 59,
p. 79-85
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