GIS
GeoIP Geographic Reverse Lookup Optimization
·1551 words·8 mins
A common requirement in application development is GeoIP conversion - converting source IP addresses to geographic coordinates or administrative divisions (country-state-city-county-town-village)
KNN Ultimate Optimization: From RDS to PostGIS
·4114 words·20 mins
Ultimate optimization of KNN problems, from traditional relational design to PostGIS