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| Presentation | 2007-12-22 10:15 Probabilistic Outputs for Multiclass Support Vector Machine Liu Liu, Mauricio Kugler, Susumu Kuroyanagi, Akira Iwata (Nagoya Inst. of Tech.)  NC2007-74 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Support Vector Machines (SVM) have been successfully applied in many classification tasks with great generalization performance. However, the output function of SVMs gives an uncalibrated value, impairing the post-processing and making the combination of several classifiers inefficient, as in the case of multiclass SVMs. Some methods of transforming the binary SVM output in a calibrated posterior probability have been proposed, notably the sigmoid fitting method by Platt. This paper proposes an extension of the Platt's model for multiclass SVMs, by combining the optimization procedures of all sigmoid functions. Experimental results are presented and confirm the efficiency of the proposed method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | support vector machines / multiclass classification / posterior probability / sigmoid fitting / optimization procedure / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 410, NC2007-74, pp. 19-24, Dec. 2007. | |
| Paper # | NC2007-74 | |
| Date of Issue | 2007-12-15 (NC) | |
| 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 | NC2007-74 |
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| Conference Information | |
| Committee | MBE NC |
| Conference Date | 2007-12-22 - 2007-12-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2007-12-MBE-NC |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Probabilistic Outputs for Multiclass Support Vector Machine |
| Sub Title (in English) | |
| Keyword(1) | support vector machines |
| Keyword(2) | multiclass classification |
| Keyword(3) | posterior probability |
| Keyword(4) | sigmoid fitting |
| Keyword(5) | optimization procedure |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Liu Liu |
| 1st Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 2nd Author's Name | Mauricio Kugler |
| 2nd Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 3rd Author's Name | Susumu Kuroyanagi |
| 3rd Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 4th Author's Name | Akira Iwata |
| 4th Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2007-12-22 10:15:00 |
| Presentation Time | 25 minutes |
| Registration for | NC |
| Paper # | NC2007-74 |
| Volume (vol) | vol.107 |
| Number (no) | no.410 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2007-12-15 (NC) |
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