When owl: sameAs Isn't the Same: An Analysis of Identity in Linked Data

By Harry Halpin, P. Hayes, Jamie McCusker, Deborah L. McGuinness, H. Thompson. International Workshop on the Semantic Web, 2010

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Knowledge graph refinement: A survey of approaches and evaluation methods (2016, background): “For example, it has been reported that 20% of the interlinks between DBpedia and Freebase are incorrect [110], and that roughly half of the owl:sameAs links between knowledge graphs connect two things which are related, but not exactly the same (such as the company Starbucks and a particular Starbuc”
Factorizing YAGO: scalable machine learning for linked data (2012, background): “Consider, for example, that owl:sameAs is often misused in the LOD cloud, leading to inconsistencies between different data sources [13].”
Quality assessment for Linked Data: A Survey (2015, background): “It is important to choose the correct similarity relationship such as same , matches , similar or related between two entities to capture the most appropriate relationship [25] thus contributing towards the semantic accuracy of the data.”
Linked Data: Evolving the Web into a Global Data Space (2011, background): “There has been significant uncertainty in recent years about whether owl:sameAs or other predicates should be used to express identity links [53].”
Linked data quality of DBpedia, Freebase, OpenCyc, Wikidata, and YAGO (2017, neutral): “[22], those owl:sameAs links do not always”