Data is captured from a web site or other data source. Data is extracted from the web page using a data harvesting script or other data acquisition routine. The extracted data is then normalized and stored in a database. If data cannot be extracted from the web page, a copy of the captured web page is...http://www.google.com.tw/patents/US7873677?utm_source=gb-gplus-share專利 US7873677 - Method and apparatus for retrieving and processing data
