| Presentation | 2007-12-22 Probabilistic Outputs for Multiclass Support Vector Machines Liu LIU, Mauricio KUGLER, Susumu KUROYANAGI, Akira IWATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | support vector machines / multiclass classification / posterior probability / sigmoid fitting / optimization procedure |
| Paper # | NC2007-74 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2007/12/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Probabilistic Outputs for Multiclass Support Vector Machines |
| 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 |
| 1st Author's Name | Liu LIU |
| 1st Author's Affiliation | The authors are with the Department of Computer Science & Engineering, Nagoya Institute of Technology() |
| 2nd Author's Name | Mauricio KUGLER |
| 2nd Author's Affiliation | The authors are with the Department of Computer Science & Engineering, Nagoya Institute of Technology |
| 3rd Author's Name | Susumu KUROYANAGI |
| 3rd Author's Affiliation | The authors are with the Department of Computer Science & Engineering, Nagoya Institute of Technology |
| 4th Author's Name | Akira IWATA |
| 4th Author's Affiliation | The authors are with the Department of Computer Science & Engineering, Nagoya Institute of Technology |
| Date | 2007-12-22 |
| Paper # | NC2007-74 |
| Volume (vol) | vol.107 |
| Number (no) | 410 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |