When owl:sameAs isn’t the Same Redux: Towards a Theory of Identity, Context, and Inference on the Semantic Web

  • Harry Halpin
  • Patrick J. Hayes
  • Henry S. Thompson
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9405)


The Web changes knowledge representation in a number of surprising ways, and decentralized knowledge representation systems such as the Semantic Web will require a theory of identity for the Web beyond current use of sameAs links between various data-sets, including the fact that entities can not be linked across semantic roles. We empirically analyze the behavior of identity and inference on the Semantic Web currently in order to analyze the size of the problem. Lastly, some of the problem due to identity statements operating over different domains of discourse, and propose a modest extension to RDF (RDFC, or RDF with Contexts) that can formally distinguish different contexts in RDF, including contexts for identity statements.


Semantic Web Identity Context Pollarding 


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Harry Halpin
    • 1
  • Patrick J. Hayes
    • 2
  • Henry S. Thompson
    • 3
  1. 1.W3C/MITCambridgeUSA
  2. 2.Institute for Human and Machine CognitionPensacolaUSA
  3. 3.School of InformaticsUniversity of EdinburghEdinburghUK

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