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Paper Abstract and Keywords
Presentation 2015-03-06 14:20
A Retrieval Method of Similar Subgraphs Used in Japanese Historical Documents Image Retrieval System
Hiroaki Nagaoka, Yuichiro Iino, Mitsuru Nakata, Qi-Wei Ge (Yamaguchi Univ.) MSS2014-103
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a retrieval method of similar subgraphs in order to obtain
similar partial images used in Japanese historical documents image retrieval system.
In our system, the structure of character is represented by feature graphs, and
each image of Japanese historical documents written in a line is stored together
with its feature graphs that are called ``document graph''.
The structure of a string to be searched is specified as a feature graph that is called
``search graph''.
A search graph contains an ``indispensable graph'', which shows an indispensable structure
included in search results.
The processes to search similar partial images are as follows:
(1) seek subgraphs of document graphs that are isomorphic to the indispensable graph,
and construct candidates of search result from these subgraphs;
(2) remove improper candidates based on some conditions;
(3) calculate the similarities between remaining candidates and a search graph (these
remaining candidates are called ``similar
subgraph'');
(4) take such partial areas in Japanese historical document images as the search results
that have high similarity among the remaining candidates.
Keyword (in Japanese) (See Japanese page) 
(in English) image retrieval for historical documents / similar subgraph / isomorphic subgraph / feature graph / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 493, MSS2014-103, pp. 71-76, March 2015.
Paper # MSS2014-103 
Date of Issue 2015-02-26 (MSS) 
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 MSS2014-103

Conference Information
Committee MSS  
Conference Date 2015-03-05 - 2015-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) IT Business Plaza Musashi 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MSS 
Conference Code 2015-03-MSS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Retrieval Method of Similar Subgraphs Used in Japanese Historical Documents Image Retrieval System 
Sub Title (in English)  
Keyword(1) image retrieval for historical documents  
Keyword(2) similar subgraph  
Keyword(3) isomorphic subgraph  
Keyword(4) feature graph  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroaki Nagaoka  
1st Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
2nd Author's Name Yuichiro Iino  
2nd Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
3rd Author's Name Mitsuru Nakata  
3rd Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
4th Author's Name Qi-Wei Ge  
4th Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
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Speaker Author-1 
Date Time 2015-03-06 14:20:00 
Presentation Time 25 minutes 
Registration for MSS 
Paper # MSS2014-103 
Volume (vol) vol.114 
Number (no) no.493 
Page pp.71-76 
#Pages 6 
Date of Issue 2015-02-26 (MSS) 

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