US 12,242,585 B2
Method, apparatus and device for updating feature vector database, and medium
Weipeng Wang, Shanghai (CN); Jialiang Kang, Shanghai (CN); Kai Bian, Shanghai (CN); and Naigeng Ji, Shanghai (CN)
Assigned to CHINA UNIONPAY CO., LTD., Shanghai (CN)
Appl. No. 18/689,811
Filed by CHINA UNIONPAY CO., LTD., Shanghai (CN)
PCT Filed Oct. 9, 2022, PCT No. PCT/CN2022/123997
§ 371(c)(1), (2) Date Mar. 6, 2024,
PCT Pub. No. WO2023/134232, PCT Pub. Date Jul. 20, 2023.
Claims priority of application No. 202210036515.1 (CN), filed on Jan. 13, 2022.
Prior Publication US 2024/0378275 A1, Nov. 14, 2024
Int. Cl. G06F 21/32 (2013.01); G06F 16/23 (2019.01)
CPC G06F 21/32 (2013.01) [G06F 16/23 (2019.01)] 16 Claims
OG exemplary drawing
 
1. A method for updating a feature vector database, comprising:
acquiring a first biological feature in a service request;
obtaining, according to the first biological feature, a first feature vector and a second feature vector respectively through a first algorithm model and a second algorithm model, wherein a version of the first algorithm model is different from a version of the second algorithm model, and the first algorithm model is configured with a first feature vector database comprising a sample feature vector obtained based on the first algorithm model;
performing validity verification on the second feature vector according to an associated feature vector of a first user corresponding to a first sample feature vector, wherein the first sample feature vector is a sample feature vector successfully matched with the first feature vector in the first feature vector database, and the associated feature vector comprises at least a portion of: the first feature vector, the second feature vector, and at least a portion of history feature vectors corresponding to the first algorithm model; and
obtaining, under a condition that the validity verification on the second feature vector passes, a second sample feature vector of the first user based on the second feature vector, and storing the second sample feature vector in a second feature vector database, wherein the second algorithm model is configured with the second feature vector database.