Country boundaries change over time and there's many disputed areas (let's say the Kashmir region. Are coastline or maritime borders used (useful for island states)? Explaining how and when the master data was created would help. Ideally a repeatable process. If the master data came from a different source then the possible license should be named.
How are coordinates rounded? I see geohash is used.
Simplified boundaries as input also have an effect.
I had the same thought, while geohashes provide a computational speedup this project doesn't seem to be more than a glorified spreadsheet rather than a point-in-polygon search
The project includes a data file. I couldn't tell where this data came from, or if there's any way to update it so it's for immediate or approximate use only.
Country boundaries change over time and there's many disputed areas (let's say the Kashmir region. Are coastline or maritime borders used (useful for island states)? Explaining how and when the master data was created would help. Ideally a repeatable process. If the master data came from a different source then the possible license should be named.
How are coordinates rounded? I see geohash is used.
Simplified boundaries as input also have an effect.