Crawling the Hidden Web. Sriram Raghavan Hector Garcia-Molina @ Stanford University. Introdution. What’s the problem? Current-day crawlers retrieve only Publicly Indexable Web (PIW) Why is it a problem? Large amounts of high quality information are ‘hidden’ behind search forms
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@ Stanford University
is a fuzzy set of element values
is a membership function to assign weights [0, 1] to the member of the set