Title:
SEARCH METHOD AND APPARATUS APPLYING TAG KNOWLEDGE NETWORK
Document Type and Number:
WIPO Patent Application WO/2020/253591
Kind Code:
A1
Abstract:
A search method and apparatus applying a tag knowledge network. The method comprises: acquiring a plurality of recommended items, carrying out tag extraction on text information related to each of the recommended items to obtain one or more corresponding item tags, and determining an item tag set composed of all the item tags (S1); determining historical behavior data of a user for different items, analyzing user tags that the user prefers according to the historical behavior data, and determining a user tag set composed of all the user tags (S2); constructing a tag knowledge network by means of the item tag set, a knowledge graph and a word2vec model (S3); generating item feature vectors of the recommended items and user feature vectors of the user according to the item tag set, the user tag set and the tag knowledge network (S4); and respectively performing retrieval by means of the item feature vectors or the user feature vectors to obtain related items or related users (S5). The method can not only ensure the relevance of a content algorithm recall result, but also overcome the defects of semantic limitation and poor expansibility of a tag recall result.
Inventors:
HAO JUNYU (CN)
WEN HUI (CN)
CHEN YUNWEN (CN)
WEN HUI (CN)
CHEN YUNWEN (CN)
Application Number:
PCT/CN2020/095370
Publication Date:
December 24, 2020
Filing Date:
June 10, 2020
Export Citation:
Assignee:
DATAGRAND INFORMATION TECH SHANGHAI CO LTD (CN)
International Classes:
G06F16/955; G06F16/9535
Foreign References:
| CN110059271A | 2019-07-26 | |||
| CN106959966A | 2017-07-18 | |||
| CN104035917A | 2014-09-10 | |||
| US20080243817A1 | 2008-10-02 | |||
| CN103593792A | 2014-02-19 | |||
| CN108334558A | 2018-07-27 |
Attorney, Agent or Firm:
SHANGHAI ZHI LI PATENT & TRADEMARK AGENCY (GENERAL PARTNERSHIP) (CN)
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