Predefined clause-based structure to subdue blank node issues

World Wide Web provides vast of resources to the public. Currently, many researches have been done on resources sharing among users through implementation of ontologies. Knowledge in an ontology are represented in the form of triple(s-p-o), where concepts are brought together by a relation. In a situation where there is a need to represent a resource which exist without IRI, blank node can be implemented in placed of the resource. Increase number of blank nodes implemented will increase the complexity of ontology structure. Since it is impossible to avoid blank nodes implementation in the ontology, increase used of it might lead to the intractable of data during the information retrieval. This paper presents a new clause-based structure that able to handle N-ary, container, collection and reified knowledge issues brought by the blank node application. The result shows that the structure able to store complicated knowledge without the need to implement blank node.

[1]  Debajyoti Mukhopadhyay,et al.  Searching and Establishment of S-P-O Relationships for Linked RDF Graphs: An Adaptive Approach , 2013, 2013 International Conference on Cloud & Ubiquitous Computing & Emerging Technologies.

[2]  Jeremy J. Carroll,et al.  Resource description framework (rdf) concepts and abstract syntax , 2003 .

[3]  Timothy W. Finin,et al.  Text Based Similarity Metrics and Delta for Semantic Web Graphs , 2010, SEMWEB.

[4]  Alexander Löser,et al.  KrakeN: N-ary Facts in Open Information Extraction , 2012, AKBC-WEKEX@NAACL-HLT.

[5]  Huajun Chen,et al.  RDF/RDFS-based Relational Database Integration , 2006, 22nd International Conference on Data Engineering (ICDE'06).

[6]  Axel Polleres,et al.  On Blank Nodes , 2011, SEMWEB.

[7]  Yannis Tzitzikas,et al.  Demonstrating Blank Node Matching and RDF/S Comparison Functions , 2012, International Semantic Web Conference.

[8]  Dan Brickley,et al.  Resource Description Framework (RDF) Model and Syntax Specification , 2002 .

[9]  Carlos Sousa Pinto,et al.  Integrating large knowledge repositories in multiagent ontologies , 2012, E-LKR.

[10]  David Booth,et al.  Well Behaved RDF: A Straw-Man Proposal for Taming Blank Nodes , 2013 .

[11]  Bhavani M. Thuraisingham,et al.  R2D: A Bridge between the Semantic Web and Relational Visualization Tools , 2009, 2009 IEEE International Conference on Semantic Computing.

[12]  Luciano Del Corro,et al.  ClausIE: clause-based open information extraction , 2013, WWW.

[13]  Ying Chen,et al.  Blank Nodes in RDF , 2012, J. Softw..

[14]  Vassilis Christophides,et al.  On Computing Deltas of RDF/S Knowledge Bases , 2011, TWEB.

[15]  Markus Krötzsch,et al.  SPARQL beyond Subgraph Matching , 2010, SEMWEB.