Data constraints and quality in a linked open data world
This talk, held at the europeana tech conference in Vienna, 4th of October, did focus on the difficulties encountered while trying to check data constraints in an open world where anyone can say anything about any topic. The data quality approaches taken 5 years ago in the belgian ErfgoedPlus (HeritagePlus) project including the lessons learned are elaborated upon. Since then new approaches appeared: SPIN, RIF, OWL used with a closed world assumption.
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