Title:
CLASSIFICATION DEVICE, CLASSIFICATION METHOD, AND CLASSIFICATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/090413
Kind Code:
A1
Abstract:
In the present invention, a score calculating unit (15c) calculates the score of data from the feature amount and weight of the data using a score function. An optimization unit (15d): approximates, with a predetermined method, a nonlinear function portion of an objective function that approximates and expresses an AUC of a partial section, with regard to the AUC of the partial section of an ROC curve regarding a classifier that classifies the data into either positive examples or negative examples on the basis of the calculated score; and learns the weights so that the approximated objective function is maximized.
Inventors:
NISHIYAMA TAISHI (JP)
KUMAGAI ATSUTOSHI (JP)
KAMIYA KAZUNORI (JP)
KUMAGAI ATSUTOSHI (JP)
KAMIYA KAZUNORI (JP)
Application Number:
PCT/JP2019/040108
Publication Date:
May 07, 2020
Filing Date:
October 10, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06N20/00; G06F16/906
Foreign References:
| JP2010009177A | 2010-01-14 |
Other References:
KUWABARA, AKIYUKI: "A Perception Learning Rule for Locally Improving the ROC Curve", IEICE TECHNICAL REPORT, vol. 111, no. 483, 7 March 2012 (2012-03-07), pages 399 - 404, ISSN: 0913-5685
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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