Title:
CLASSIFICATION MODEL TRAINING METHOD, APPARATUS, TERMINAL, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/208722
Kind Code:
A1
Abstract:
Disclosed by the present application are a classification model training method, apparatus, terminal, and storage medium; the method is: in a classification model, constructing a first task for an expected prediction category and a second task for an undesired prediction category; after inputting a sample into the classification model, obtaining a first predicted probability by way of first task prediction, and obtaining a second predicted probability by way of second task prediction; then using the first predicted probability to calculate a first loss function value, and using the second predicted probability to calculate a second loss function value, and using the first predicted probability and the second predicted probability to calculate an associated loss function value of the first task and the second task; calculating a final loss function value of the classification model on the basis of the first loss function value, the second loss function value, and the associated loss function value, then back-propagating to update the classification model. In the present application, by means of the described scheme, the classification model is informed in advance of undesired prediction categories which need to be avoided when making predictions, thus increasing the accuracy of prediction, while also reducing the impact of prediction errors.
Inventors:
WU TIANBO (CN)
WANG JIANZONG (CN)
CHENG NING (CN)
WANG JIANZONG (CN)
CHENG NING (CN)
Application Number:
PCT/CN2021/083844
Publication Date:
October 21, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G06K9/62
Foreign References:
| CN112465017A | 2021-03-09 | |||
| CN111695596A | 2020-09-22 | |||
| CN110826614A | 2020-02-21 | |||
| CN110163117A | 2019-08-23 | |||
| CN109711427A | 2019-05-03 | |||
| US20170109651A1 | 2017-04-20 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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