1. Context Representation for the Semantic Web
Jie Bao, Jiao Tao, Deborah L. McGuinness. Tetherless World Constellation, Rensselaer Polytechnic Institute, Troy, NY 12180, USA {baojie,taoj2,dlm}@cs.rpi.edu
Paul R. Smart. School of Electronics and Computer Science. University of Southampton. Southampton, SO17 1BJ, UK ps02v@ecs.soton.ac.uk
What are contexts? Formalizing Contexts
Contexts capture the relativity of meaning of data and knowledge.
Some aspects of contexts include the following (among others).
Extending McCarthy’s context theory
Relation to other Contexts
Assumption Source A context is an object (so we can say (e.g., Nesting)
something about it) A=>B
[1] dig.csail.mit.edu/2010/LinkedData/ppl.html
Institution
Is there a Southwest flight from A context has a jurisdiction to interpret some (Semantic Assumptions)
Context Provenance
MHT to RDU on Apr 24th, 2010? data [ isin (c, data)]
Other aspects of contexts
Relations between contexts control
knowledge flow and inference w.r.t. contexts
No Yes
(Depends on whether the knowledge base is
complete w.r.t . SW flights and thus impacts [2,3] http://nysl.nysed.gov./libdev/libjobs.htm
Representing Contexts on the SW
use of the Closed World Assumption)
Ontology doc Context doc
Partial Info Scope
Ontology relations Context Relations
(e.g., importing, (Determines if/how
citation) knowledge is combined)
Ontology doc Context doc
A white sheep or a sheep Bart Simpson hates Family Guy.
with a white side facing True in “Simpsons” or in “South Park”?
us?
• Jie Bao, Jiao Tao, Deborah L. McGuinness, & Paul R. Smart. Context Representation for the Semantic Web, In Web Science Conference 2010, http://tw.rpi.edu/wiki/TW-2010-02
• Jie Bao, Li Ding & Deborah L. McGuinness (2010). Contextualized RDF Importing. Submitted to W3C Workshop on RDF Next Steps. Stanford, CA, USA.
Tetherless World Constellation funding from: DARPA, NSF, IARPA, ARL, KAUST, Lockheed Martin, SRI, Fujitsu, IBM Apr 26 2010, at WebSci10, Raleigh NC State University
![Context Representation for the Semantic Web
Jie Bao, Jiao Tao, Deborah L. McGuinness. Tetherless World Constellation, Rensselaer Polytechnic Institute, Troy, NY 12180, USA {baojie,taoj2,dlm}@cs.rpi.edu
Paul R. Smart. School of Electronics and Computer Science. University of Southampton. Southampton, SO17 1BJ, UK ps02v@ecs.soton.ac.uk
What are contexts? Formalizing Contexts
Contexts capture the relativity of meaning of data and knowledge.
Some aspects of contexts include the following (among others).
Extending McCarthy’s context theory
Relation to other Contexts
Assumption Source A context is an object (so we can say (e.g., Nesting)
something about it) A=>B
[1] dig.csail.mit.edu/2010/LinkedData/ppl.html
Institution
Is there a Southwest flight from A context has a jurisdiction to interpret some (Semantic Assumptions)
Context Provenance
MHT to RDU on Apr 24th, 2010? data [ isin (c, data)]
Other aspects of contexts
Relations between contexts control
knowledge flow and inference w.r.t. contexts
No Yes
(Depends on whether the knowledge base is
complete w.r.t . SW flights and thus impacts [2,3] http://nysl.nysed.gov./libdev/libjobs.htm
Representing Contexts on the SW
use of the Closed World Assumption)
Ontology doc Context doc
Partial Info Scope
Ontology relations Context Relations
(e.g., importing, (Determines if/how
citation) knowledge is combined)
Ontology doc Context doc
A white sheep or a sheep Bart Simpson hates Family Guy.
with a white side facing True in “Simpsons” or in “South Park”?
us?
• Jie Bao, Jiao Tao, Deborah L. McGuinness, & Paul R. Smart. Context Representation for the Semantic Web, In Web Science Conference 2010, http://tw.rpi.edu/wiki/TW-2010-02
• Jie Bao, Li Ding & Deborah L. McGuinness (2010). Contextualized RDF Importing. Submitted to W3C Workshop on RDF Next Steps. Stanford, CA, USA.
Tetherless World Constellation funding from: DARPA, NSF, IARPA, ARL, KAUST, Lockheed Martin, SRI, Fujitsu, IBM Apr 26 2010, at WebSci10, Raleigh NC State University](https://image.slidesharecdn.com/2010-04-22contextposterdlm-100706075728-phpapp01/85/Context-Representation-for-the-Semantic-Web-1-320.jpg)
