A method of generating metadata is provided including providing (401) a plurality of source texts (100), processing the plurality of source texts (100) to extract primary metadata in the form of a plurality of sets of words (104, 106), and comparing (407) each of the source texts (100) with each of the...http://www.google.com.hk/patents/US20030004942?utm_source=gb-gplus-share專利 US20030004942 - Method and apparatus of metadata generation