Ontology Summarization Based on RDF Sentence Graph

1
Ontology Summarization Based on RDF Sentence Graph

• Written by
• Xiang Zhang, Gong Cheng, Yuzhong Qu
• Presented by
• Sophya Kheim

2
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

3
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

4
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

5
Relation to Class

• Semantic Web and Ontology
• Determining the salience of RDF sentences using
  centrality
• Social Networks
• PageRank
• Authorities/Hubs

6
(No Transcript)