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| Presentation | 2018-11-05 15:10 [Poster Presentation] Generalized Dirichlet-Process-Means with f-Mean and Analysis of Influence Function Masahiro Kobayashi, Kazuho Watanabe (Toyohashi Tech.)  IBISML2018-50 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | DP-means clustering was obtained as an extension of $K$-means clustering. While it is implemented with a simple and efficient algorithm, it can estimate the number of clusters simultaneously. However, DP-means is specifically designed for the average distortion criterion. Therefore, it is vulnerable to outliers in data, and it can cause large maximum distortion in clusters. In this work, we extend the objective function of the DP-means to $f$-separable distortion measures and propose a unified learning algorithm to overcome the above problems by the selection of the function $f$. Furthermore, the influence function of the estimated cluster center is analyzed to evaluate the robustness against outliers. We show the effectiveness of the generalized method by numerical experiments using real dataset. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Dirichlet-Process-Means / Bregman Divergence / Maximum Distortion / Robustness / Clustering / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 284, IBISML2018-50, pp. 45-52, Nov. 2018. | |
| Paper # | IBISML2018-50 | |
| 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) | |
| Download PDF | IBISML2018-50 |
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| 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) | Generalized Dirichlet-Process-Means with f-Mean and Analysis of Influence Function |
| Sub Title (in English) | |
| Keyword(1) | Dirichlet-Process-Means |
| Keyword(2) | Bregman Divergence |
| Keyword(3) | Maximum Distortion |
| Keyword(4) | Robustness |
| Keyword(5) | Clustering |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masahiro Kobayashi |
| 1st Author's Affiliation | Toyohashi University of Technology (Toyohashi Tech.) |
| 2nd Author's Name | Kazuho Watanabe |
| 2nd Author's Affiliation | Toyohashi University of Technology (Toyohashi Tech.) |
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| Speaker | Author-1 |
| Date Time | 2018-11-05 15:10:00 |
| Presentation Time | 180 minutes |
| Registration for | IBISML |
| Paper # | IBISML2018-50 |
| Volume (vol) | vol.118 |
| Number (no) | no.284 |
| Page | pp.45-52 |
| #Pages | 8 |
| Date of Issue | 2018-10-29 (IBISML) |
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