A Method for Division of Human Activity Network Regions with Spatial Constraints
A technology of spatial constraints and human activities, applied in data processing applications, instruments, computing, etc., can solve problems such as high computational overhead and inability to use a large number of space units
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[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0041] For the original check-in data, the preprocessing of coordinate correction and data filtering is carried out first. The current check-in data is geo-referenced to GCJ-02, which systematically offsets its coordinates from where it would be in real space. Therefore, the coordinate correction here is to convert the GCJ-02 coordinate system to the WGS84 coordinate system, so that the check-in data can be consistent with other geographic data. Invalid data includes missing information (including missing coordinates, check-in time, and user ID) and invalid information (referring to the check-in location being outside the TAZ boundary). Data filtering is used to identify these invalid data and simply remove them. At the same time, the filtered check-in records are used to construct the check-in track in chronological order by the check-in users.
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