The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Apr. 13, 2023
Method and apparatus for training retrieval model, retrieval method and apparatus, device and medium
Tencent Technology (Shenzhen) Company Limited, Shenzhen, CN;
Hui Guo, Shenzhen, CN;
TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen, CN;
Abstract
A method for training a retrieval model is performed by a computer device. The retrieval model includes an embedding vector network and a quantization index network. The method includes: obtaining n sample triplets; inputting basic feature vectors of the n sample triplets to the embedding vector network to identify, according to errors of feature vectors output by the embedding vector network, a first sample triplet set used for training the quantization index network; inputting the basic feature vectors of the n sample triplets to the quantization index network to identify, according to errors of quantization indexes output by the quantization index network, a second sample triplet set used for training the embedding vector network; training the quantization index network on the basis of the first sample triplet set; and training the embedding vector network on the basis of the second sample triplet set.