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| Presentation | 2014-11-18 15:00 [Poster Presentation] Parallel Distributed Block Coordinate Descent Methods based on Pairwise Comparison Oracle Kota Matsui (Nagoya Inst. of Tech.), Wataru Kumagai (Kanagawa Univ.), Takafumi Kanamori (Nagoya Univ.)  IBISML2014-67 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper provides a block coordinate descent algorithm to solve unconstrained optimization prob- lems. In our algorithm, computation of function values or gradients is not required. Instead, pairwise comparison of function values is used. Our algorithm consists of two steps; one is the direction estimate step and the other is the search step. In the direction estimate step, a Newton type search direction is estimated. In the search step, a numerical solution is updated along the estimated direction. The computation in the direction estimate step can be easily parallelized, and thus, the algorithm works efficiently to find the minimizer of the objective function. Also, we show an upper bound of the convergence rate. In numerical experiments, we show that our method efficiently finds the optimal solution compared to some existing methods based on the pairwise comparison. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | derivative-free optimization / pairwise comparison oracle / block coordinate descent / parallel computation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 306, IBISML2014-67, pp. 243-250, Nov. 2014. | |
| Paper # | IBISML2014-67 | |
| Date of Issue | 2014-11-10 (IBISML) | |
| 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 | IBISML2014-67 |
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| Conference Information | |
| Committee | IBISML |
| Conference Date | 2014-11-17 - 2014-11-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | IBISML |
| Conference Code | 2014-11-IBISML |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Parallel Distributed Block Coordinate Descent Methods based on Pairwise Comparison Oracle |
| Sub Title (in English) | |
| Keyword(1) | derivative-free optimization |
| Keyword(2) | pairwise comparison oracle |
| Keyword(3) | block coordinate descent |
| Keyword(4) | parallel computation |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Kota Matsui |
| 1st Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 2nd Author's Name | Wataru Kumagai |
| 2nd Author's Affiliation | Kanagawa University (Kanagawa Univ.) |
| 3rd Author's Name | Takafumi Kanamori |
| 3rd Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2014-11-18 15:00:00 |
| Presentation Time | 180 minutes |
| Registration for | IBISML |
| Paper # | IBISML2014-67 |
| Volume (vol) | vol.114 |
| Number (no) | no.306 |
| Page | pp.243-250 |
| #Pages | 8 |
| Date of Issue | 2014-11-10 (IBISML) |
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