Title:
SYSTEMS AND METHODS FOR USER ANALYSIS
Document Type and Number:
WIPO Patent Application WO/2019/218334
Kind Code:
A1
Abstract:
A method for user mining is provided. The method may include obtaining a plurality of first feature vectors of a plurality of positive samples and a plurality of second feature vectors of a plurality of negative samples, and generating a plurality of expanded first feature vectors based on the plurality of first feature vectors and second feature vectors and expanded second feature vectors. Each first feature vector may include first feature information that describes a plurality of features of a corresponding positive sample. Each second feature vector may include second feature information that describes the plurality of features of a corresponding positive sample. The method may further include determining one or more core features related to the plurality of positive samples among the plurality of features based on a trained binary model, which is produced by using the plurality of expanded first feature vectors and expanded second feature vectors.
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Inventors:
LIU YUEXIANG (CN)
LI ZANG (CN)
CAO LIFENG (CN)
CHANG ZHIHUA (CN)
LING HONGBO (CN)
XU XIANG (CN)
LI ZANG (CN)
CAO LIFENG (CN)
CHANG ZHIHUA (CN)
LING HONGBO (CN)
XU XIANG (CN)
Application Number:
PCT/CN2018/087439
Publication Date:
November 21, 2019
Filing Date:
May 18, 2018
Export Citation:
Assignee:
BEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD (CN)
International Classes:
G06K9/62
Foreign References:
| US20160162757A1 | 2016-06-09 | |||
| CN107506786A | 2017-12-22 | |||
| CN107194488A | 2017-09-22 | |||
| CN107330429A | 2017-11-07 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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