Semantic annotation of data tables using a domain ontology

In this paper, we show the different steps of an annotation process that allows one to annotate data tables with the relations of a domain ontology. The columns of a table are first segregated according to whether they represent numeric or symbolic data. Then, we annotate the numeric columns with their corresponding numeric type, and the symbolic columns with their corresponding symbolic type, combining different evidences from the ontology. The relations represented by a table are recognized using both the table title and the types of the columns. We give experimental results for our annotation method