Baidu Online Network Technology (beijing) Co., Ltd.

Haishan Wu

Yuan Xia

Jingbo Zhou

Chao Li

Tianyi Wang

Yehui Yang

Tong Zhang

Mengwen Xu

Hongbin Pei

A method and apparatus for generating information. A specific embodiment of the method includes: acquiring a set of geographic information point sequences and a set of identifiers comprising an identifier of each geographic information point sequence in the set of the geographic information point sequences; for the each geographic information point sequence in the set of the geographic information point sequences, clustering geographic information points in the each geographic information point sequence and generating an element sequence corresponding to the each geographic information point sequence; learning, by utilizing a machine learning method based on the set of identifiers and the generated element sequences, to obtain a matrix for the identifiers in the set of identifiers; and generating, for each identifier in the set of identifiers, based on the identifier and the matrix, information of a user to which the geographic information point sequence indicated by the identifier belongs. The present embodiment realizes a targeted information generation.

Method and apparatus for generating information

In some embodiments, a method includes: obtaining position information of a wireless hotspot where the user locates, based on hotspot scanning information of wireless hotspots already scanned by the user; acquiring one or more candidate Points of Interest (POIs) close to the wireless hotspot based on the position information; based on characteristic information corresponding to the wireless hotspot and respective candidate POIs, ranking all candidate POIs to determine an POI matching the wireless hotspot, wherein the characteristic information comprises access characteristic information. In some embodiments, the following advantages may be realized: the POI matching the wireless hotspot is obtained based on relevant data that the user scans the wireless hotspot to predict the POI actually accessed by the user without a procedure of manually collecting the data or user feedback, thereby improving the efficiency.

Method and apparatus for matching wireless hotspot with POI

A road detection method and apparatus. A specific embodiment of the method includes: acquiring an image of a predetermined region; semantically segmenting the image to acquire a first probability that a region corresponding to each pixel in the image is a road region; acquiring a historical position information set of a target terminal; correcting, in response to historical position information existing in the historical position information set, the historical position information indicating a historical position located in the predetermined region, the first probability according to the historical position information to obtain a second probability; and determining a region corresponding to a pixel having the second probability greater than a preset threshold as a road region. Such an embodiment improves the road detection accuracy.

Road detecting method and apparatus

The present disclosure provides an area of interest boundary extracting method and apparatus, a device and a computer storage medium, wherein the area of interest boundary extracting method comprises: obtaining a satellite image and a road network base map including an area of interest; merging the obtained satellite image and road network base map to obtain merged data; using a binarizing model to perform binarization for the merged data to obtain a binarized image, wherein the binarizing model is obtained by training according to training data in advance; extracting a boundary of the binarized image as the boundary of the area of interest. According to the present disclosure, the boundary extracting costs are reduced and automatic and accurate extraction of the boundary of the area of interest is implemented by obtaining the satellite image and the road network base map including the area of interest, and inputting the data formed by merging the satellite image with the road network base map into the binarizing model.

Area of interest boundary extracting method and apparatus, device and computer storage medium

A method and apparatus are for determining a location of a new point of interest by determining demand information of a user based on retrieval data of the user. The retrieval data includes at least point of interest data, and the demand information includes at least a demand occurrence position. Supply information, including at least a supply region of existing points of interest are obtained based on the retrieval data. The demand information of the user is matched with the supply information of the existing points of interest to obtain the unsatisfied demand information of the user. The location of the new point of interest is determined based on the unsatisfied demand information of the user. The demand information for determining the location of a new point of interest is more accurate and comprehensive, and accuracy and reliability of the site selection of a new point of interest are improved.

Method and apparatus for determining a location of a point of interest

A method and apparatus for pushing information. A specific embodiment of the searching method comprises: analysing, based on a second search operation sequentially performed to a map application installed on a client by a user, a search term corresponding to the second search operation; matching the analysed search term with a first search term in a first search term sequence to determine whether the matching is successful; acquiring log data of the map application installed on the client, in response to the matching being successful; determining a vehicle demand probability of the user based on the log data, acquired feature information of the user and a pre-trained vehicle demand probability model; and pushing information to the client in response to the determined vehicle demand probability being greater than a preset vehicle demand probability threshold.

Method and apparatus for pushing information

The present application discloses a risk early warning method and apparatus. An implementation of the method includes: monitoring, in real time, search traffic for a predetermined location from users using an online map within a preset period; determining whether the search traffic exceeds a preset search traffic threshold; and sending early warning information of a crowd gathering risk if the search traffic exceeds the preset search traffic threshold. The implementation effectively utilizes the map search traffic capable of reflecting the intention of users and realizes the early warning for the crowd gathering risk.

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Beijing, China

Haishan Wu