ISWC 2007 + ASWC 2007

6th International Semantic Web ConferenceBusan, South Korea, Nov. 11-15, 2007

http://iswc2007.semanticweb.org

http://data.semanticweb.org/conference/iswc-aswc/2007/

Statistics

• About 540 participants from 30 countries• 3 invited talks• Research track

– 257 submissions, an 18% increase– 50 accepted (19% acceptance rate)

» (215, 52, 24%)

• In-Use Track– 29 submissions– 12 accepted (41% acceptance rate)

» (42, 14, 33%)

Invited talks

• Brewster Kahle: Universal Access to Human Knowledge (Or Public Access to Digital Materials)

• Barney Pell: Natural Language and the Semantic Web • http://www.powerset.com/

• Chris Welty: How I was right even when I was wrong

Semantic Web Challenge

Goal: to apply Semantic Web techniques in building online end-user applications that integrate, combine and deduce information needed to assist users in performing task

• Certain minimum criteria: – Meaning of data has to play a central role– Heterogeneous information sources, under diverse control– Open world assumption (information is never complete)– (multi-media, commercial potential, scalability, dynamic data)

• Semantic Web Challenge– 23 submitted Semantic Web applications– 19 accepted

http://challenge.semanticweb.org/

Semantic Web Challenge...

• GroupMe! - Where Semantic Web meets Web 2.0

• JeromeDL – a Semantic Digital Library • CHIP Demonstrator: Semantics-driven

Recommendations and Museum Tour Generation

• Potluck: Semi-Ontology Alignment for Casual Users

• Revyu.com: a Reviewing and Rating Site for the Web of Data

Doctoral consortium

• 6 papers• 6 posters

• Full-day session• Each student one mentor

• Invited talk by Fabio Ciravegna

• Best-student paper:Katharina Reinecke: Cultural Adaptivity for the Semantic Web

• Best mentor: Elena Simperl

Workshops

• 7 workshops on Sunday– Ontology Matching workshop– Evaluation of Ontologies and Ontology-based

tools

• 6 workshops on Monday– Uncertainty Reasoning for the Semantic Web

+ ‘Consensus Building Workshop’

Ontology Matching 2007

• 8 technical papers (26 submissions, 30%)

• Solving semantic ambiquity to improve semantic web based Ontology Matching– Sabou et al.

– Word sense disambiguation to improve precision

• Analyzing Mapping Extraction Approaches– Meilicke et al.

– How to extract final alignment from a matrix of similarity values

• Towards semantics-based Ontology similarity– Pinto et al.

– new semantic ontology similarity measures

http://om2007.ontologymatching.org/

Ontology Matching 2007

• Ontology Mapping – a user survey– Noy et al.– Results of online user survey– User context questions, tool questions, process questions

• Ontology Alignment Evaluation Initiative 2007 (OAEI)

• Jérôme Euzenat et al: First Results of the Ontology Alignment Evaluation Initiative 2007

• 17 papers about systems (ASMOV,Falcon,Lily,OntoDNA,OLA,SEMA,...)

• Poster session: 9 posters

Evaluation of Ontologies and Ontology-based tools

• 7 contributions• Diverse topics

– Metrics for evaluation ontologies– Semantic search engines: swoogle, OntoKhoj,

OntoSelect– Ontology summarization– Evaluation of ontology-matching systems

using samples (satisfaction of user)– Evaluation with synthetic workload

http://km.aifb.uni-karlsruhe.de/ws/eon2007

Panel discussion

• Moderator: Guus Schreiber• Panelists:

– Carole Goble – Jim Hendler– Dieter Fensel– Abraham Bernstein– Frank van Harmelen

– 5 questions

Research papers

• Winner paper by FORTH-ICS: On the foundations of computing deltas between RDF models– Zeginis et al.

• All contributions are on-line

Next events

• ISWC 2008, Karlsruhe, Germany

• ISWC 2009, Washington DC, USA