geospatial vector data used in HiVQ

the dataset includes geospatial vector point and linestring data, and the data size ranges from 4 million records to 100 million records to evaluate the applicability of HiVQ. the dataset includes 1) the check-in data provided by a location-based social networking platform(https://snap.stanford.edu/data/loc-brightkite.html); 2) the location and status data collected from taxis in Wuhan; 3) the POI data in China mainland; 4) a free geo-database that contains more than 11 million place names(https://www.geonames.org/); 5) the station location provided by OpenCellId, which is the world's largest open database of mobile phone stations, containing more than 40 million station locations, whose spatial distribution and density can indirectly reflect the population density or affluence of countries and regions; 6) the road network in China. China Roads contains 12503452 road features, and its attribute "road type" contains ten field items including "railway", "highway", "national roads", "provincial roads", "county roads", "county roads", "primary urban roads", "secondary urban roads", "tertiary urban roads" and "quaternary urban roads".