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

SolutionRDF Sentence Builder

OntologyLengthPreference

Graph BuilderBuilds RDF Sentence GraphsDescribes links between RDF Sentences

Salience AssessorRanks RDF sentences based the link analysis of the graph“Centrality”

Re-rankerProduces final summaryRanking 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