A focussed Web crawler learns to recognize Web pages that are relevant to the interest of one or more users, from a set of examples provided by the users. It then explores the Web starting from the example set, using the statistics collected from the examples and other analysis on the link graph of the...http://www.google.com.hk/patents/US6418433?utm_source=gb-gplus-share專利 US6418433 - System and method for focussed web crawling
