A customer service system includes a natural language device, a remote device remotely coupled to the natural language device over a network and a database coupled to the natural language device. The database has a plurality of answers stored on it that are indexed to natural language keys. The natural...http://www.google.com.tw/patents/US5895466?utm_source=gb-gplus-share專利 US5895466 - Automated natural language understanding customer service system
