US Patent 10268735 Graph based resolution of matching items in data sources

In an embodiment, a computer-implemented method comprises calculating a first relational classification score for a first node in a first graph; calculating a second relational classification core for a second node in a second graph; calculating a relational classification matching score for the first node and the second node that is based upon on the first relational classification score and the second relational classification score; calculating a composite score based at least upon the relational classification matching score; generating a canonical tuple that represents a match between the first node and the second node in response to determining that the composite score is equal to or greater than a specified threshold score value.