@inproceedings{hoser2006semantic,
  abstract = {A key argument for modeling knowledge in ontologies is the easy
re-use and re-engineering of the knowledge. However, beside
consistency checking, current ontology engineering tools provide
only basic functionalities for analyzing ontologies. Since
ontologies can be considered as (labeled, directed) graphs, graph
analysis techniques are a suitable answer for this need. Graph
analysis has been performed by sociologists for over 60 years, and
resulted in the vivid research area of Social Network Analysis
(SNA). While social network structures in general currently receive
high attention in the Semantic Web community, there are only very
few SNA applications up to now, and virtually none for analyzing the
structure of ontologies.

We illustrate in this paper the benefits of applying SNA to
ontologies and the Semantic Web, and discuss which research topics
arise on the edge between the two areas. In particular, we discuss
how different notions of centrality describe the core content and
structure of an ontology. From the rather simple notion of degree
centrality over betweenness centrality to the more complex
eigenvector centrality based on Hermitian matrices, we illustrate
the insights these measures provide on two ontologies, which are
different in purpose, scope, and size.},
  address = {Heidelberg},
  author = {Hoser, Bettina and Hotho, Andreas and Jäschke, Robert and Schmitz, Christoph and Stumme, Gerd},
  booktitle = {The Semantic Web: Research and Applications},
  editor = {Sure, York and Domingue, John},
  interhash = {344ec3b4ee8af1a2c6b86efc14917fa9},
  intrahash = {c0cdbeab23ce0fc1bff5e02c99aab012},
  month = {June},
  pages = {514-529},
  publisher = {Springer},
  series = {LNAI},
  title = {Semantic Network Analysis of Ontologies},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2006/hoser2006semantic.pdf},
  volume = 4011,
  year = 2006
}

@inproceedings{stumme01bottom,
  address = {Seattle, WA, USA},
  author = {Stumme, G. and Maedche, A.},
  booktitle = {Proc. 17th Intl. Conf. on Artificial Intelligence (IJCAI '01)},
  comment = {alpha},
  editor = {Nebel, B.},
  interhash = {2ff2aa6492ba1857d18042fa4d57111d},
  intrahash = {cd6d6c64f79d13d7cf394d3a6b3858ba},
  pages = {225-230},
  title = {{FCA}-{M}erge: Bottom-Up Merging of Ontologies.},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2001/IJCAI01.pdf},
  year = 2001
}

@inproceedings{stumme00towardsanorder,
  address = {Aachen},
  author = {Stumme, G. and Studer, R. and Sure, Y.},
  booktitle = {Verbundtagung Wirtschaftsinformatik 2000},
  comment = {alpha},
  editor = {Bodendorf, F. and Grauer, M.},
  interhash = {9042498686a1b2c000cd4b0007a76bf8},
  intrahash = {83cc12ae3979a3e4108e5442b7da0b4f},
  pages = {136-149},
  publisher = {Shaker},
  title = {Towards an Order-Theoretical Foundation for Maintaining and Merging Ontologies},
  url = {http://www.kde.cs.uni-kassel.de/stumme/papers/2000/REFMOD00.pdf},
  year = 2000
}

@inproceedings{DBLP:conf/esws/AssemMMS06,
  author = {van Assem, Mark and Malais{\'e}, V{\'e}ronique and Miles, Alistair and Schreiber, Guus},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  editor = {Sure, York and Domingue, John},
  ee = {http://dx.doi.org/10.1007/11762256_10},
  interhash = {ce44953b51e17605040d608a353ac84d},
  intrahash = {f9d4a1f59e794880d06266746822075d},
  isbn = {3-540-34544-2},
  pages = {95-109},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {A Method to Convert Thesauri to SKOS.},
  volume = 4011,
  year = 2006
}

@inproceedings{DBLP:conf/esws/SerafiniZSB06,
  author = {Serafini, Luciano and Zanobini, Stefano and Sceffer, Simone and Bouquet, Paolo},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_4},
  interhash = {084af48010f71f02ed3e3c4db6a054e2},
  intrahash = {5306cd7f1d989d6eb0873ec425c6f223},
  pages = {4-18},
  title = {Matching Hierarchical Classifications with Attributes.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/NovacekS06,
  author = {Nov{\'a}cek, V\'{\i}t and Smrz, Pavel},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_8},
  interhash = {7c22b562cb44a73a89b1f92e94edab1a},
  intrahash = {2eee171e9a0fe2dd8002634ae5890ddf},
  pages = {65-79},
  title = {Empirical Merging of Ontologies - A Proposal of Universal Uncertainty Representation Framework.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/Hess06,
  author = {He{\ss}, Andreas},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_5},
  interhash = {ac6c4c721253215c4f3ec6883f7aed09},
  intrahash = {f3efa58e84ecfeaba1294275b426715c},
  pages = {19-33},
  title = {An Iterative Algorithm for Ontology Mapping Capable of Using Training Data.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/GhidiniS06,
  author = {Ghidini, Chiara and Serafini, Luciano},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_7},
  interhash = {d8de25dade2cba89d915922f91d5bd97},
  intrahash = {4e6b027d0d61d4f00e1d8c8aece40a28},
  pages = {50-64},
  title = {Reconciling Concepts and Relations in Heterogeneous Ontologies.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/TempichPS06,
  author = {Tempich, Christoph and Pinto, Helena Sofia and Staab, Steffen},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_11},
  interhash = {7b828eb7e6dc90df1dbd858b994e2626},
  intrahash = {8315df96f93540d71d1c801d42e03602},
  pages = {110-124},
  title = {Ontology Engineering Revisited: An Iterative Case Study.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/ZhdanovaS06,
  author = {Zhdanova, Anna V. and Shvaiko, Pavel},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_6},
  interhash = {ed71b8a0bc99acf1c97fff02f7a26c54},
  intrahash = {3d420259274be4335db14cbc95eb0b53},
  pages = {34-49},
  title = {Community-Driven Ontology Matching.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/GiunchigliaMZ06,
  author = {Giunchiglia, Fausto and Marchese, Maurizio and Zaihrayeu, Ilya},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_9},
  interhash = {c077d42bacd7fcda7f8cbb6c1984ae28},
  intrahash = {b6eb1351a8387d08fdcd3903069b5525},
  pages = {80-94},
  title = {Encoding Classifications into Lightweight Ontologies.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/BoerSW06,
  author = {de Boer, Viktor and van Someren, Maarten and Wielinga, Bob J.},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_20},
  interhash = {76531933cb64ec49fbcb391b8df150ac},
  intrahash = {a37680a6bc817a5badcc56788a04078a},
  pages = {245-258},
  title = {Extracting Instances of Relations from Web Documents Using Redundancy.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/LeiSLZUM06,
  author = {Lei, Yuangui and Sabou, Marta and Lopez, Vanessa and Zhu, Jianhan and Uren, Victoria and Motta, Enrico},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_19},
  interhash = {9327f5d87332471b84089b6c948babec},
  intrahash = {43d1ff7c23d569f92371eb4f873d6471},
  pages = {230-244},
  title = {An Infrastructure for Acquiring High Quality Semantic Metadata.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/WangLBCW06,
  author = {Wang, Ting and Li, Yaoyong and Bontcheva, Kalina and Cunningham, Hamish and Wang, Ji},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_18},
  interhash = {ed3057a6228ad3e0666545ec089738f3},
  intrahash = {0252a6aef35b9ce0baddf529405e1ffd},
  pages = {215-229},
  title = {Automatic Extraction of Hierarchical Relations from Text.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/PlessersT06,
  author = {Plessers, Peter and Troyer, Olga De},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_17},
  interhash = {bdc648c14350e2642bf1604247b10a84},
  intrahash = {6b3d083e09e3c773cda7f11692ed6532},
  pages = {200-214},
  title = {Resolving Inconsistencies in Evolving Ontologies.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/AlaniHO06,
  author = {Alani, Harith and Harris, Stephen and O'Neil, Ben},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_16},
  interhash = {820160bbfc0c96b13c654aef43e01299},
  intrahash = {30788b88df5d41c0814b786766554065},
  pages = {185-199},
  title = {Winnowing Ontologies Based on Application Use.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/KalyanpurPSG06,
  author = {Kalyanpur, Aditya and Parsia, Bijan and Sirin, Evren and Grau, Bernardo Cuenca},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_15},
  interhash = {9d6000b51eaa973ed6f3052fdf2cab92},
  intrahash = {9fb6b9b0c0233789b436aa8ec80a7fea},
  pages = {170-184},
  title = {Repairing Unsatisfiable Concepts in OWL Ontologies.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/Garcia-CastroG06,
  author = {Garcia-Castro, Raul and G{\'o}mez-P{\'e}rez, Asunci{\'o}n},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_14},
  interhash = {fcd8557db412f7dd4316980dbd83872b},
  intrahash = {0982bb60e3415de96ea982bf557ab259},
  pages = {155-169},
  title = {Benchmark Suites for Improving the RDF(S) Importers and Exporters of Ontology Development Tools.},
  year = 2006
}

@inproceedings{DBLP:conf/esws/GangemiCCL06,
  author = {Gangemi, Aldo and Catenacci, Carola and Ciaramita, Massimiliano and Lehmann, Jos},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  booktitle = {ESWC},
  crossref = {DBLP:conf/esws/2006},
  ee = {http://dx.doi.org/10.1007/11762256_13},
  interhash = {0c037b5a8655693215c31fd8a075f6e5},
  intrahash = {16d9216d1ac7e9f84c8839d4e3559db4},
  pages = {140-154},
  title = {Modelling Ontology Evaluation and Validation.},
  year = 2006
}