There's an interesting paper that came out of Stanford's WebBase project that might be helpful: http://ilpubs.stanford.edu:8090/422/1/1999-66.pdf http://ilpubs

There's an interesting paper that came out of Stanford's WebBase project that might be helpful: http://ilpubs.stanford.edu:8090/422/1/1999-66.pdf http://ilpubs.stanford.edu:8090/422/1/1999-66.pdf