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| Presentation | 2013-05-18 16:30 Label Size Maximization for Rotating Maps Yusuke Yokosuka, Keiko Imai (Chuo Univ.)  COMP2013-18 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Map labeling is a problem of placing labels at the corresponding graphical features in a map. There are two optimization problems, the label number maximization problem and the label size maximization problem. In general, both problems are NP-hard for static maps. Recently, the importance of dynamic maps has been increased by several applications like personal mapping systems, and the label number maximization problem for dynamic cases has been studied. In this paper, we consider the label size maximization problem of points for rotating maps. While the map fully rotates from $0$ to $2 pi$, the labels are placed horizontally for the angle of the map such that a point called an anchor point is coincided at the corresponding point in the map. Our problem is finding the maximum scaling factor without intersection of labels and deciding the place of anchor points. We propose $O(n log n)$-time and $O(n)$-space algorithm for the case that each anchor point is inside the label. Moreover, if the labels are of unit height (or width) and the anchor points are on the boundary, we present a same time and memory bound algorithm. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Map Labeling / Label Size Maximization Problem / Dynamic Maps / Rotating Maps / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 50, COMP2013-18, pp. 157-162, May 2013. | |
| Paper # | COMP2013-18 | |
| Date of Issue | 2013-05-10 (COMP) | |
| 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 | COMP2013-18 |
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| Conference Information | |
| Committee | COMP IPSJ-AL |
| Conference Date | 2013-05-17 - 2013-05-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Otaru University of Commerce |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | COMP |
| Conference Code | 2013-05-COMP-AL |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Label Size Maximization for Rotating Maps |
| Sub Title (in English) | |
| Keyword(1) | Map Labeling |
| Keyword(2) | Label Size Maximization Problem |
| Keyword(3) | Dynamic Maps |
| Keyword(4) | Rotating Maps |
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| 1st Author's Name | Yusuke Yokosuka |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Chuo University (Chuo Univ.) |
| 2nd Author's Name | Keiko Imai |
| 2nd Author's Affiliation | Chuo University (Chuo Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-05-18 16:30:00 |
| Presentation Time | 25 minutes |
| Registration for | COMP |
| Paper # | COMP2013-18 |
| Volume (vol) | vol.113 |
| Number (no) | no.50 |
| Page | pp.157-162 |
| #Pages | 6 |
| Date of Issue | 2013-05-10 (COMP) |
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