Xin Luna Dong Laure Berti-Equille Divesh Srivastava Integrating Conflicting Data: The Role of Source Dependence. 550-561 2009 2 PVLDB 1 http://www.vldb.org/pvldb/2/vldb09-pvldb47.pdf db/journals/pvldb/pvldb2.html#DongBS09