Paper Abstract and Keywords |
Presentation |
2018-11-05 15:10
[Poster Presentation]
Algorithms for Checking Existence of a Bad Arm Utilizing Asymmetry Koji Tabata, Atsuyoshi Nakamura, Tamiki Komatsuzaki (Hokkaido Univ.) IBISML2018-91 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We study a problem called a bad arm existence checking problem in which, given two thresholds $theta_L$ and $theta_U$ ($theta_L<theta_U$) and an acceptable error rate $delta>0$, a player is required to stop outputting ``positive'' if the expected loss of at least one arm is larger than $theta_U$ and ``negative'' if all the arms have expected losses less than $theta_L$. We propose algorithms that utilize the asymmetry of the problem in stopping conditions of positive and negative cases in order to reduce the number of arm draws. The proposed algorithms are composed of an arm selection policy and a stopping condition of drawing an arm. We analyze algorithms' stopping times theoretically and also investigate empirically what combination of an arm selection policy and a stopping condition is better by simulations using randomly generated loss means. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Bad Arm Existence Checking Problem / Multi Armed Bandit / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 284, IBISML2018-91, pp. 353-360, Nov. 2018. |
Paper # |
IBISML2018-91 |
Date of Issue |
2018-10-29 (IBISML) |
ISSN |
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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IBISML2018-91 |
Conference Information |
Committee |
IBISML |
Conference Date |
2018-11-05 - 2018-11-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hokkaido Citizens Activites Center (Kaderu 2.7) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Information-Based Induction Science Workshop (IBIS2018) |
Paper Information |
Registration To |
IBISML |
Conference Code |
2018-11-IBISML |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Algorithms for Checking Existence of a Bad Arm Utilizing Asymmetry |
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Bad Arm Existence Checking Problem |
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Multi Armed Bandit |
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1st Author's Name |
Koji Tabata |
1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
2nd Author's Name |
Atsuyoshi Nakamura |
2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
3rd Author's Name |
Tamiki Komatsuzaki |
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Hokkaido University (Hokkaido Univ.) |
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Speaker |
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Date Time |
2018-11-05 15:10:00 |
Presentation Time |
180 minutes |
Registration for |
IBISML |
Paper # |
IBISML2018-91 |
Volume (vol) |
vol.118 |
Number (no) |
no.284 |
Page |
pp.353-360 |
#Pages |
8 |
Date of Issue |
2018-10-29 (IBISML) |