Evaluating Ontology Alignment Systems in Query Answering Tasks

Ontology matching receives increasing attention and gained importance in more recent applications such as ontology-based data access (OBDA). However, query answering over aligned ontologies has not been addressed by any evaluation initiative so far. A novel Ontology Alignment Evaluation Initiative (OAEI) track, Ontology Alignment for Query Answering (OA4QA), introduced in the 2014 evaluation campaign, aims at bridging this gap in the practical evaluation of matching systems w.r.t. this key usage.