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    • 7. 发明授权
    • Referrer cache chain
    • 引荐来源缓存链
    • US08473611B1
    • 2013-06-25
    • US12554663
    • 2009-09-04
    • Richard E. MeierRoger G. HarrisonTodd Miller
    • Richard E. MeierRoger G. HarrisonTodd Miller
    • G06F15/173
    • G06F17/30902
    • A request for content is received at a content filter of a computer system, and a determination is made, based on a referrer included in the request, regarding a root site directly or indirectly associated with the request. Thereafter, the content is permitted or not permitted according to whether or not the root site is a permitted site and a site associated with the content is categorized in a semantically equivalent content category with the root site. The determination regarding the root site may involve consulting a referrer chain cache storing lists of referrers which associate referring Web sites with root sites from which referrals originate.
    • 在计算机系统的内容过滤器处接收对内容的请求,并且基于包括在请求中的引用者,确定与请求直接或间接相关联的根站点。 此后,根据站点是否是允许站点,允许还是不允许内容,并且与内容相关联的站点被分类为具有根站点的语义上等同的内容类别。 关于根站点的确定可能涉及咨询引用者链缓存,其存储将引用网站与引用来源的根站点相关联的引用者的列表。