A search engine utilizes a bottom-up approach to index the content of a network instead of relying on atop-down approach as used by conventional search engines. The network being indexed may be any network, including the global computer network, Internet, and the world wide web. Instead of using a central...http://www.google.com.tw/patents/US6516337?utm_source=gb-gplus-share專利 US6516337 - Sending to a central indexing site meta data or signatures from objects on a computer network
