Paper Abstract and Keywords |
Presentation |
2011-01-18 11:00
Disk Allocation Methods for Cartesian Product Files by using Unequal Error Protection Codes Tomohiko Saito, Hiroshige Inazumi (Aoyama Gakuin Univ.), Toshiyasu Matsushima (Waseda Univ.), Shigeichi Hirasawa (Cyber Univ.) IT2010-55 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Allocation methods for Cartesian product files on multiple disks by using linear error-correcting codes were proposed. In this paper, we propose an allocation method using unequal error protection(UEP) codes. Codewords of an UEP code have some special bits which are protected against a greater number of errors than other bits. We firstly assume a model that ``*'', which means ``don't care'', appear with different probability in each attribute of queries. In this case, the average response time can be calculated by using the split distance distribution. Then, we calculate the average response time of the allocation method using UEP codes, and we show the effectiveness of this method from numerical examples. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
file allocation / Cartesian product file / partial match query / unequal error protection codes / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 363, IT2010-55, pp. 7-12, Jan. 2011. |
Paper # |
IT2010-55 |
Date of Issue |
2011-01-11 (IT) |
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) |
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IT2010-55 |
Conference Information |
Committee |
IT |
Conference Date |
2011-01-18 - 2011-01-18 |
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(See Japanese page) |
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Paper Information |
Registration To |
IT |
Conference Code |
2011-01-IT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Disk Allocation Methods for Cartesian Product Files by using Unequal Error Protection Codes |
Sub Title (in English) |
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Keyword(1) |
file allocation |
Keyword(2) |
Cartesian product file |
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partial match query |
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unequal error protection codes |
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1st Author's Name |
Tomohiko Saito |
1st Author's Affiliation |
Aoyama Gakuin University (Aoyama Gakuin Univ.) |
2nd Author's Name |
Hiroshige Inazumi |
2nd Author's Affiliation |
Aoyama Gakuin University (Aoyama Gakuin Univ.) |
3rd Author's Name |
Toshiyasu Matsushima |
3rd Author's Affiliation |
Waseda University (Waseda Univ.) |
4th Author's Name |
Shigeichi Hirasawa |
4th Author's Affiliation |
Cyber University (Cyber Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-01-18 11:00:00 |
Presentation Time |
20 minutes |
Registration for |
IT |
Paper # |
IT2010-55 |
Volume (vol) |
vol.110 |
Number (no) |
no.363 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2011-01-11 (IT) |
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