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.

Date of Patent:
Feb. 20, 2024

Filed:

Jan. 02, 2020
Applicants:

Beijing Jingdong Shangke Information Technology Co., Ltd., Beijing, CN;

Beijing Jingdong Century Trading Co., Ltd., Beijing, CN;

Inventors:

Yitong Hu, Beijing, CN;

Yun Gao, Beijing, CN;

Na Wang, Beijing, CN;

Lili Zuo, Beijing, CN;

Yahong Zhang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 40/289 (2020.01); G06F 16/33 (2019.01); G06F 16/332 (2019.01); G06F 11/34 (2006.01); G06F 18/22 (2023.01);
U.S. Cl.
CPC ...
G06F 40/289 (2020.01); G06F 11/3438 (2013.01); G06F 16/3326 (2019.01); G06F 16/3347 (2019.01); G06F 18/22 (2023.01);
Abstract

An item recall method includes: behavior data is acquired, where the behavior data includes items and item information of each item; target behavior data containing a retrieval category word is extracted from the behavior data; retrieval words of each item and a retrieval frequency of each retrieval word are acquired in a reverse correlation manner; word segmentation is performed on the item information to obtain multiple item segmented words; a similarity between all retrieval words and the multiple item segmented words is calculated; whether the similarity is greater than a first preset threshold or not is determined, and if yes, then a retrieval word is extracted as an expansion word of the retrieval category word; and item recall is performed according to the retrieval category word and the expansion word.


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