Title:
MULTI-LABEL CLASS EQUALIZATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/166325
Kind Code:
A1
Abstract:
A multi-label class equalization method. The method comprises: obtaining a sample set comprising multiple instances, each instance comprising one or more category labels; classifying, according to the category labels, the instances in the sample set on the basis of categories to form multiple classes, each instance being divided into one or more classes, and each class corresponding to a category; determining a target sampling weight of each instance in each subclass according to the number of target category labels in each instance in each subclass and the number of all category labels in each instance, wherein the subclasses are classes, among the plurality of classes, of which the number is less than a first threshold, the target category labels are category labels corresponding to the subclass in each instance, and the target sampling weight is a sampling weight corresponding to the subclass in each instance; and performing weighted sampling on the instances of each subclass according to the target sampling weight in each instance in the subclass. The present invention further provides a device, such that scenario loss and indirect increase of the number of other categories are avoided.
Inventors:
WANG JUNKAI (CN)
LI YAMIN (CN)
LIU XINCHUN (CN)
LI YAMIN (CN)
LIU XINCHUN (CN)
Application Number:
PCT/CN2021/132897
Publication Date:
August 11, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06K9/62; G06N3/08
Foreign References:
| CN111079811A | 2020-04-28 | |||
| CN111652268A | 2020-09-11 | |||
| US20170270429A1 | 2017-09-21 | |||
| CN111240279A | 2020-06-05 | |||
| CN110717529A | 2020-01-21 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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