@Juan, thanks a lot for your answer, yes you're right I also can't find up to date surveys. Actually I've downloaded some of the papers but they're not what I'm looking for. Will try with this book. Thanks again.
There was considerable work on semantic relatedness with ER models and relational databases. IF you interested contact me and I will send links.
When considering relatedness in RDF graphs, some aspects have been considered-- such as the notions of semantic associations (Rho and Iso operators)- there are three papers in WWW (2003, 2005, 2007) by Kemafor Anyanwu as the first authors, and also related efforts such as http://knoesis.org/library/resource.php?id=00192 . However, I am not able to think of any comprehensive survey.