公开(公告)号：US20210034993A1

公开(公告)日：2021-02-04

申请号：US16936190

申请日：2020-07-22

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Miao FAN ,  Jizhou HUANG ,  An ZHUO ,  Ying LI ,  Ping LI ,  Haifeng WANG

IPC: G06N5/04 ,  G06N20/00

Abstract: A POI valuation method, apparatus, device and computer storage medium are disclosed. The method comprises: obtaining information of first POIs with known values and information of second POIs with unknown values within a regional range; creating a valuation model which is configured to revaluate a first POI using values of surrounding POIs of the first POI, the surrounding POIs including other first POIs and second POIs within a predetermined range of distance from the first POI, and adjusting values of second POIs in the surrounding POIs using an error between a revaluated value of first POI and the known value of the first POI; training the valuation model until the error is minimized; obtaining the values of the second POIs from the valuation model. The solutions may reduce the requirement for manpower and improve the valuation efficiency as compared with manually valuation of POIs one by one.

公开(公告)号：US20220414691A1

公开(公告)日：2022-12-29

申请号：US17622950

申请日：2021-06-02

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Jizhou HUANG ,  Haifeng WANG ,  Miao FAN ,  Yibo SUN

IPC: G06Q30/02 ,  G06F30/27

Abstract: Technical solutions relate to the field of big data technologies. A technical solution includes: pre-training a time series prediction model using first historical regional heat data; and taking second historical regional heat data as a second support set, and further training the time series prediction model using the second support set to adjust model parameters, so as to obtain the regional heat prediction model; and the regional heat prediction model is configured to predict a second query set, and the second query set includes regional heat at a prediction time.