Ontology Summarization Based on RDF Sentence Graph

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Ontology Summarization Based on RDF Sentence Graph Powered By Docstoc
					  Ontology Summarization
Based on RDF Sentence Graph
                   Written by:
     Xiang Zhang, Gong Cheng, Yuzhong Qu

                Presented by:
                Sophya Kheim
                  Problem
The problem the paper is
addressing is the
importance of Ontology
Summarization to
understand and select
ontologies.

The problem interesting
because there is no
published work on
ontology summarization
                         Solution
RDF Sentence Builder
   Ontology
   Length
   Preference
Graph Builder
   Builds RDF Sentence Graphs
   Describes links between RDF
   Sentences
Salience Assessor
   Ranks RDF sentences based
   the link analysis of the graph
   “Centrality”
Re-ranker
   Produces final summary
   Ranking algorithm reduces
   redundancy and enhances
   coherence
             Criticism
Interesting because there currently is no
published work on ontology summarization
Since there was no published work on
ontology summarization, they had to
evaluate their ontology summarization
based on text summarization and not other
ontology summarizations
        Relation to Class
Semantic Web and Ontology

Determining the salience of RDF
sentences using “centrality”
  Social Networks
  PageRank
  Authorities/Hubs

				
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posted:3/28/2012
language:English
pages:6