...学-科研基金网 关键词：Web信息过滤；基于内容的信息过滤；分布式协作信息过滤 [gap=1364]Keywords：Web Information Filtering; Content-based Information Filtering; Distributed Collaborative Information Fil..
One part of Google is busy creating indexes of online information while at the same time filtering out "spam, " which in this context means Web sites whose only function is to make money off the fact you land on them, without providing any sort of "value-added" information in the process.