Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2007-03-05 10:50
On the convergence of iterative estimation algorithms operating on graphical models
Justin Dauwels (RIKEN) CAS2006-81 SIP2006-182 CS2006-98
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, graphical models have become a useful tool to derive estimation and detection algorithms. Perhaps the most prominent example in digital communications is the probabilistic decoding of error correcting codes (e.g., LDPC codes, turbo-codes, etc.) by means of the sum-product algorithm (``belief propagation'') applied on a graphical model (i.e., Tanner graph or factor graph) of the error-correcting code. Graphical models have also been used in the context of channel estimation, e.g., for phase, frequency, and timing estimation.
In this paper, we investigate the convergence properties of various estimation algorithms that operate on graphical models: (generalized) expectation maximization, gradient methods, and cyclic maximization. First we will review those algorithms in the standard formulation, then we consider various extensions in the context of graphical models. We will elaborate on the fixed points, asymptotic rate of convergence (in terms of information matrices), and local stability of those algorithms.
Keyword (in Japanese) (See Japanese page) 
(in English) fixed points / convergence rate / gradient methods / Hessian matrix / graphical model / cyclic maximization / stability / expectation maximization  
Reference Info. IEICE Tech. Rep., vol. 106, no. 571, CS2006-98, pp. 23-28, March 2007.
Paper # CS2006-98 
Date of Issue 2007-02-26 (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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CAS2006-81 SIP2006-182 CS2006-98

Conference Information
Committee SIP CAS CS  
Conference Date 2007-03-05 - 2007-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Blancart Misasa (Tottori) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing for Communications, Code Theory, etc. 
Paper Information
Registration To CS 
Conference Code 2007-03-SIP-CAS-CS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On the convergence of iterative estimation algorithms operating on graphical models 
Sub Title (in English)  
Keyword(1) fixed points  
Keyword(2) convergence rate  
Keyword(3) gradient methods  
Keyword(4) Hessian matrix  
Keyword(5) graphical model  
Keyword(6) cyclic maximization  
Keyword(7) stability  
Keyword(8) expectation maximization  
1st Author's Name Justin Dauwels  
1st Author's Affiliation Amari Research Unit, RIKEN Brain Science Institute (RIKEN)
2nd Author's Name  
2nd Author's Affiliation ()
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 ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2007-03-05 10:50:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CAS2006-81, SIP2006-182, CS2006-98 
Volume (vol) vol.106 
Number (no) no.567(CAS), no.569(SIP), no.571(CS) 
Page pp.23-28 
#Pages 6 
Date of Issue 2007-02-26 (CAS, SIP, CS) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan