
274 Analyzing and Securing Social Networks
generator produces synthetic provenance data that is not available online. It is this provenance data
that has subsets that we must hide.
Selecting Background Information. We use real information that actually exists on current web
pages so that we can demonstrate the effectiveness of the inference controller with respect to a set
of prior knowledge of the querying agent. We identify a city and state in the United States. For this
city, we target a set of zip codes. The information is downloaded from freely available websites such
as yellow pages and white pages. We crawl these websites and extract the ...