additive-update.zip

Data and code for the paper_"A novel connection-point-guided method for updating additive changes in road networks from crowdsourced trajectories"_ submitted to IJGIS.requirements [test with python 3.8.5]:<pre>-Numpy &gt;= 1.22.4<br>-gdal &gt;=3.2.3<br>-pandas &gt;=1.1.3</pre><br>There are two dataset (Wuhan and Beijing), and the corresponding code.Generate the confident changing points by a large distance. (we used arcgis to do it);Generate the changing sub-trajectories by changing_trajectory_extract.py and main.cpp;Generate the connection point by https://github.com/GISerWang/Spatio-temporal-Clustering ;Genrate the road centerline (see the Wuhan data and Beijing data file), and we calculate the precision and recall, F-value by assessment.py.<br><br>