Paper Abstract and Keywords |
Presentation |
2007-03-15 10:30
Additional Optimization of Feature Extraction for Pattern Classification by Utilizing Multilayer Perceptron Norikazu Tonogai, Shin Ishii, Tomohiro Shibata (NAST) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The demand of real-time pattern classification of high-dimensional
data with highly restricted computational power isincreasing. Possible applications would be face recognition in a car or by a mobile phone.
Under these situations, reduction of computing time by mean of feature extraction which projects high-dimensional data into a low-dimensional space. One of the most popular feature extraction method is principle component analysis (PCA). PCA finds an optimal feature space that
maximizes the mutual information between the reduced data and the
original data, but this does not mean the found space is also optimal
for pattern classification, in general. The aim of this study is to propose an approach to acquire such a feature extractor that is suited
for pattern classification. We employ a three-layer perceptron for this aim. Because learning of a high-dimensional feature extractor usually
finds a local minimum, we propose to use PCA to find a good initial parameter set for the weights between the input and the intermediate layers. Computer experiments using two face databases popular in the research area of face recognition demonstrates the plausibility of our approach, even when it is compared to support vector machine. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
pattern classification / feature extraction / principal component analysis / multilayer perceptron / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 589, NC2006-172, pp. 111-116, March 2007. |
Paper # |
NC2006-172 |
Date of Issue |
2007-03-08 (NC) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
NC |
Conference Date |
2007-03-14 - 2007-03-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
NC |
Conference Code |
2007-03-NC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Additional Optimization of Feature Extraction for Pattern Classification by Utilizing Multilayer Perceptron |
Sub Title (in English) |
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Keyword(1) |
pattern classification |
Keyword(2) |
feature extraction |
Keyword(3) |
principal component analysis |
Keyword(4) |
multilayer perceptron |
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1st Author's Name |
Norikazu Tonogai |
1st Author's Affiliation |
Nara Institute of Science and Technology (NAST) |
2nd Author's Name |
Shin Ishii |
2nd Author's Affiliation |
Nara Institute of Science and Technology (NAST) |
3rd Author's Name |
Tomohiro Shibata |
3rd Author's Affiliation |
Nara Institute of Science and Technology (NAST) |
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Speaker |
Author-1 |
Date Time |
2007-03-15 10:30:00 |
Presentation Time |
20 minutes |
Registration for |
NC |
Paper # |
NC2006-172 |
Volume (vol) |
vol.106 |
Number (no) |
no.589 |
Page |
pp.111-116 |
#Pages |
6 |
Date of Issue |
2007-03-08 (NC) |