Towards Enriching Linked Open Data via Open Information Extraction

The descriptions of various entities on Linked Data repositories are subject to constant renewals and modifications, with respect to both the descriptions of concepts and relations and entities realizing their instantiations. Thus, the underlying ontologies have to be updated accordingly in order to reflect these changes. This paper presents a system for examining the possibilities of discovering new relations and updating/verifying existing ones for entities described in Linked Data repositories by using Open Information Extraction techniques. These are applied to web content. The process aims to the enrichment of the examined datasets and the expansion of the ontologies with newly-discovered concepts and relations. Towards this target, the paper discusses the intricacies, pitfalls and challenges present.