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| Presentation | 2017-07-19 10:20 Graph compression by tree grammars and direct evaluation of a node selection query on a compressed graph Takeshi Takeda, Kenji Hashimoto, Hiroyuki Seki (Nagoya Univ.)  SS2017-1 KBSE2017-1 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Graphs expressing relationships between real-world data tend to be extremely large, and researches on graph compression have been conducted such as gRePair. However, there is no experimental study on direct query evaluation on compressed graphs. In this research, we propose a method for compressing graphs into tree grammars called SLCFTG and a direct query evaluation method without decompression. Experimental results on some actual RDF data show that while the compression ratio was slightly inferior to gRePair, the time required for the direct query evaluation was 15% to 40%, and the amount of memory was less than 5% compared with the traditional query evaluation using decompression in almost cases. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | graph / tree grammar / compression / query / TreeRePair / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 136, SS2017-1, pp. 1-6, July 2017. | |
| Paper # | SS2017-1 | |
| Date of Issue | 2017-07-12 (SS, KBSE) | |
| 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 | SS2017-1 KBSE2017-1 |
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| Conference Information | |
| Committee | SS KBSE IPSJ-SE |
| Conference Date | 2017-07-19 - 2017-07-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SS |
| Conference Code | 2017-07-SS-KBSE-SE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Graph compression by tree grammars and direct evaluation of a node selection query on a compressed graph |
| Sub Title (in English) | |
| Keyword(1) | graph |
| Keyword(2) | tree grammar |
| Keyword(3) | compression |
| Keyword(4) | query |
| Keyword(5) | TreeRePair |
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| Keyword(8) | |
| 1st Author's Name | Takeshi Takeda |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Kenji Hashimoto |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 3rd Author's Name | Hiroyuki Seki |
| 3rd Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-07-19 10:20:00 |
| Presentation Time | 25 minutes |
| Registration for | SS |
| Paper # | SS2017-1, KBSE2017-1 |
| Volume (vol) | vol.117 |
| Number (no) | no.136(SS), no.137(KBSE) |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2017-07-12 (SS, KBSE) |
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