Paper Abstract and Keywords |
Presentation |
2009-11-19 13:40
Fast Parallel Processing using GPU in PCA-L1 Nobuhiro Funatsu, Yoshimitsu Kuroki (Kurume Nat Coll. of Tech.) IE2009-100 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In data-analysis problems with a large number of dimension, principal component analysis based on L2-norm (L2- PCA) is one of the most popular methods, but L2-PCA is sensitive to outliers. Unlike L2-PCA, PCA-L1 is robust to outliers because it utilizes the L1-norm, which is less sensitive to outliers. However, PCA-L1 needs long time to calculate bases, because PCA-L1 employs an iterative algorithm to obtain each basis, and requires to calculate an eigenvector of autocorrelation matrix as an initial vector. The autocorrelation matrix needs to be recalculated for each basis. In this paper, we focus on GPGPU (General Purpose GPU). We applied the PCA-L1 algorithm to the face-recognition technology and compared the computing time of GPGPU with CPU. Simulation results show that GPGPU decreases the execution time from CPU. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
GPGPU / CUDA / PCA / L1-norm / Eigenface / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 292, IE2009-100, pp. 13-17, Nov. 2009. |
Paper # |
IE2009-100 |
Date of Issue |
2009-11-12 (IE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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IE2009-100 |
Conference Information |
Committee |
ITE-ME ITE-AIT ITE-BCT IE |
Conference Date |
2009-11-19 - 2009-11-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kyushu Sangyo Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
IE |
Conference Code |
2009-11-ME-AIT-BCT-IE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Fast Parallel Processing using GPU in PCA-L1 |
Sub Title (in English) |
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Keyword(1) |
GPGPU |
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CUDA |
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PCA |
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L1-norm |
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Eigenface |
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1st Author's Name |
Nobuhiro Funatsu |
1st Author's Affiliation |
Kurume National College of Technology (Kurume Nat Coll. of Tech.) |
2nd Author's Name |
Yoshimitsu Kuroki |
2nd Author's Affiliation |
Kurume National College of Technology (Kurume Nat Coll. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2009-11-19 13:40:00 |
Presentation Time |
20 minutes |
Registration for |
IE |
Paper # |
IE2009-100 |
Volume (vol) |
vol.109 |
Number (no) |
no.292 |
Page |
pp.13-17 |
#Pages |
5 |
Date of Issue |
2009-11-12 (IE) |
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