Empirical Knowledge Discovery over Ontology Matching Results

Analysis of ontology alignments, as sets of correspondences between entities, can reveal knowledge to be later fed back to the alignment process. We report on data mining experiments over 3-year results of the ‘conference’ track of the Ontology Alignment Evaluation Initiative. The discovered hypotheses express relationships among the matching tools used, the nature of source ontologies, the confidence measure of the returned correspondences, their actual correctness, and, notably, the participation of the correspondences in mapping patterns.