CLAVIN – open source context-based geotagging : digital-geography.com
▻http://www.digital-geography.com/clavin-open-source-context-based-geotagging
In fact the engine extracts locations out of structured and unstructured text documents and presents geographic features with meta data. CLAVIN does the geocoding with help of a gazetteer but goes a step further. It uses “intelligent heuristics” to find out the right results in combination with a fuzzy search to handle with different spellings of a location.