IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
... (for ESS/CS/ES/ISS)
Tech. Rep. Archives
... (for ES/CS)
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2014-03-07 13:25
Parameter estimation for von Mises-Fisher mixture model via Gaussian distribution
Suguru Yasutomi, Toshihisa Tanaka (Tokyo Univ. of Agriculture and Tech) CAS2013-129 SIP2013-175 CS2013-142
Abstract (in Japanese) (See Japanese page) 
(in English) Statistics that deals with direction, such as angles, phases and wind directions is directional statistics. In directional statistics, a von Mises–Fisher (vMF) distribution is an important distribution. A maximum likelihood estimator and a variational Bayes estimator for a vMF mixture model have already been derived. However, the maximum likelihood estimator may accumulate approximation error during an iterative algorithm. Besides, the variational Bayes estimator cannot estimate some parameters. This article derives an estimator of the parameters in the vMF mixture model via the Gaussian distribution to solve these problems. We focus on the fact that the vMF distribution is derived from the Gaussian distribution. At first, we apply the estimation for the Gaussian mixture model to the data. Then, we convert the estimated Gaussian mixture distribution to a vMF mixture distribution. Experimental results support the analysis.
Keyword (in Japanese) (See Japanese page) 
(in English) von Mises-Fisher distribution / isotropic gaussian distribution / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 464, SIP2013-175, pp. 227-232, March 2014.
Paper # SIP2013-175 
Date of Issue 2014-02-27 (CAS, SIP, CS) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CAS2013-129 SIP2013-175 CS2013-142

Conference Information
Committee CS CAS SIP  
Conference Date 2014-03-06 - 2014-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka City University Media Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Processor, Signal Processing for Communication, Wireless LAN/PAN, etc. 
Paper Information
Registration To SIP 
Conference Code 2014-03-CS-CAS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Parameter estimation for von Mises-Fisher mixture model via Gaussian distribution 
Sub Title (in English)  
Keyword(1) von Mises-Fisher distribution  
Keyword(2) isotropic gaussian distribution  
Keyword(3)  
Keyword(4)  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Suguru Yasutomi  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agriculture and Tech)
2nd Author's Name Toshihisa Tanaka  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agriculture and Tech)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker
Date Time 2014-03-07 13:25:00 
Presentation Time 25 
Registration for SIP 
Paper # IEICE-CAS2013-129,IEICE-SIP2013-175,IEICE-CS2013-142 
Volume (vol) IEICE-113 
Number (no) no.463(CAS), no.464(SIP), no.465(CS) 
Page pp.227-232 
#Pages IEICE-6 
Date of Issue IEICE-CAS-2014-02-27,IEICE-SIP-2014-02-27,IEICE-CS-2014-02-27 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan