Access Rights in Enterprise Full-text Search
A full version of the paper presented at ICEIS 2010 conference. July 2010, 19 pages.
Available as Postscript,
One of the toughest problems to solve when
deploying an enterprise-wide full-text search system is to
handle the access rights of the documents and intranet web pages
correctly and effectively. Post-processing the results of general-purpose
full-text search engine (filtering out the documents inaccessible
to the user who sent the query) can be an expensive operation,
especially in large collections of documents.
We discuss various approaches to this problem and propose a novel
method which employs virtual tokens for encoding the access rights
directly into the search index.
We then evaluate this approach in an intranet system with several
millions of documents and a complex set of access rights and access