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Paper Abstract and Keywords
Presentation 2006-03-16 11:15
*
Koji Takemoto, Takekazu Kato, Toshikazu Wada (Wakayama Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose an accelerated Nearest Neighbor(NN) search algorithm in high dimensional space. The methods proposed so far can be classified into two types: 1) NN candidate narrowing and 2) pruning of distance computation. In high dimensional space over 30D, while NN candidate narrowing becomes brute force search, the latter method, pruning of distance computation is still effective for acceleration. For realizing more efficient NN search in high dimensional space, we integrate these two methods. As well, orthogonal expansion of patterns ordered by contribution ratio is incorporated for efficient pruning, because the distance computation starting from the most contributed component provides good approximation of the true distance. We confirmed through extensive experiments that our method is faster than existing methods.
Keyword (in Japanese) (See Japanese page) 
(in English) nearest neighbor search / ssda / orthogonal transform / prototype selection / / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 673, PRMU2005-240, pp. 49-56, March 2006.
Paper # PRMU2005-240 
Date of Issue 2006-03-09 (PRMU) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee PRMU  
Conference Date 2006-03-16 - 2006-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2006-03-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English)
Sub Title (in English)  
Keyword(1) nearest neighbor search  
Keyword(2) ssda  
Keyword(3) orthogonal transform  
Keyword(4) prototype selection  
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1st Author's Name Koji Takemoto  
1st Author's Affiliation Wakayama University (Wakayama Univ.)
2nd Author's Name Takekazu Kato  
2nd Author's Affiliation Wakayama University (Wakayama Univ.)
3rd Author's Name Toshikazu Wada  
3rd Author's Affiliation Wakayama University (Wakayama Univ.)
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Speaker Author-1 
Date Time 2006-03-16 11:15:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2005-240 
Volume (vol) vol.105 
Number (no) no.673 
Page pp.49-56 
#Pages
Date of Issue 2006-03-09 (PRMU) 


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