主权项 |
1. A computer-implemented method of obtaining user traits, the method comprising:
in response to determining, by a computer, that a first kind of data of a target user is not sufficient to obtain a trait of the target user, collecting, by the computer, a second kind of data of the target user, wherein the first kind of data and the second kind of data are different kinds of data; determining, by the computer, based on the second kind of data, one or more reference users similar to the target user; and obtaining, by the computer, the trait of the target user based on the first kind of data of the reference users. |