Method and device for determining user action trajectory
A technology of action track and user, which is applied in the direction of location information-based services, electrical components, wireless communication, etc., can solve the problems of low accuracy of user action track and difficult user action track, etc.
Active Publication Date: 2018-04-10
HUAWEI TECH CO LTD
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Problems solved by technology
[0008] Because when there are few user location points, the first method and the second method determine multiple user action trajectories based on fewer user location points, and it is difficult to determine the correct user action from multiple user action trajectories. trajectories, therefore, the accuracy of user action trajectories determined by the first method and the second method is low
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example 2
[0218] Example 2, the first error sum of squares is expected to be 5 by adding the expected sum of squares of errors from all user positions in cluster 1 to the corresponding cluster center, and the sum of squares of all users in cluster 1 is expected to be 5. The second sum of squared error is expected to be 8 by summing the expected sum of squared errors from the point to the center of the corresponding cluster cluster. Since the first expected sum of squared errors 5 is smaller than the second expected sum of squared errors 8, the cluster center set by the cluster cluster 1 is used as the frequent location point of the user.
[0219] Further, after comparing the size of the first sum of squared errors and the expected sum of squared errors of each cluster cluster, if the first sum of squared errors is expected to be greater than the second sum of squared errors expected , the method provided in this embodiment will also use the center of each cluster cluster as the new clus...
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The invention discloses a method and device for determining action trails of a user and belongs to the field of communication technologies. The method includes the steps that the action trails, to be corrected, of the user are obtained and at least comprise one position point of the user; according to the potential road point set, the potential action path set and the frequent action path set of the user, the mapping probability of each position point of the user in the action trails, to be corrected, of the user is determined; according to the potential road point set, the potential action path set and the frequent action path set of the user and the mapping probabilities, the migration probability between any two position points of the user in the action trails, to be corrected, of the user is determined; according to the migration probabilities, a candidate path set corresponding to the action trails, to be corrected, of the user is determined and at least includes one candidate path; the optimal path is selected from the candidate path set and determined as the action trails of the user. The action trails of the user are corrected, and the precision of the action trails of the user is improved.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for determining a user's action track. Background technique [0002] Usually, when the communication device communicates with the mobile terminal, the communication device can collect the location data of the user on the mobile terminal side in real time. However, due to the limitations of the communication device itself, the accuracy of the user's location data collected by the communication device is low, resulting in a large deviation in the user's action trajectory determined according to the user's location data, and the user's action trajectory has important use value. It can provide navigation for users, and can also provide important references for advertisers to choose advertising screen locations, merchants to choose store locations, and municipal traffic optimization. Concerns. [0003] The related technology adopts the following th...
Claims
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IPC IPC(8): H04W4/02H04W4/029H04W64/00
CPCH04W4/022
Inventor 涂丹丹张家劲
Owner HUAWEI TECH CO LTD