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 |
Download PDF |
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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. |
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(See Japanese page) |
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Paper Information |
Registration To |
PRMU |
Conference Code |
2006-03-PRMU |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
* |
Sub Title (in English) |
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nearest neighbor search |
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ssda |
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orthogonal transform |
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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 |
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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 |
8 |
Date of Issue |
2006-03-09 (PRMU) |
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