Efficient Federated Debugging of Lightweight Ontologies [chapter]

Andreas Nolle, Christian Meilicke, Heiner Stuckenschmidt, German Nemirovski
2014 Lecture Notes in Computer Science  
In the last years ontologies have been applied increasingly as a conceptual view facilitating the federation of numerous data sources using different access methods and data schemes. Approaches such as ontology-based data integration (OBDI) are aimed at this purpose. According to these approaches, queries formulated in an ontology describing the knowledge domain as a whole are translated into queries formulated in vocabularies of integrated data sources. In such integrative environments the
more » ... nt of heterogeneous data sources increases the risk of inconsistencies. These inconsistencies become a serious obstacle for leveraging the full potential of approaches like OBDI since inconsistencies can be hardly identified by existing reasoning algorithms, which mostly have been developed for processing of locally available knowledge bases. In this paper we provide an alternative approach for efficient federated debugging. Our solution relies on the generation of so called clash queries that are evaluated over all integrated data sources. We further explain how these queries can be used for pinpointing those assertions that cause inconsistencies and discuss finally some experimental evaluation results of our implementation.
doi:10.1007/978-3-319-11113-1_17 fatcat:g2bnxbi7bnhazev6dmcxqhzfta