(with apologies for multiple postings)
Second Call for Papers
2nd Workshop on Ontology Learning and Population: Bridging the Gap
between Text and Knowledge (OLP2)
Workshop at COLING/ACL 2006
http://olp.dfki.de/olp2/olp2_cfp.htm
July 22nd, 2006
Sydney, Australia
Supported By SmartWeb (http://www.smartweb-projekt.de/)
Topic and Motivation
An ontology is an explicit and formal specification of a shared
conceptualization of a domain of interest. Ontologies formalize the
intensional aspects of a domain, whereas the extensional part is
provided by a knowledge base that contains assertions about instances of
concepts and relations as defined by the ontology. The process of
defining and instantiating a knowledge base is referred to as knowledge
markup or ontology population, whereas (semi-)automatic support in
ontology development is usually referred to as ontology learning.
Ontologies have been broadly used in knowledge management applications,
including Semantic Web applications and research. In recent years,
ontologies have regained interest also within the NLP community,
specifically in such applications as information extraction, text mining
and question answering. However, as ontology development is a tedious
and costly process there has been an equally growing interest in the
automatic learning of ontologies. Much of this work has been focused on
textual data as human language is a primary mode of knowledge transfer.
In this way, textual data provide both a resource for the ontology
learning process as well as an application medium for developed ontologies.
Automatic methods for text-based ontology learning and population have
developed over recent years, but it is difficult to compare approaches
and results. In the 1st Workshop on Ontology Learning and Population (at
ECAI 2004, Spain: http://olp.dfki.de/ecai04/cfp.htm) we addressed this
issue through an emphasis on the evaluation aspects of the reported
work. In the context of the 2nd workshop we intend to continue this
emphasis by providing a common data set for participants to work with,
consisting of an ontology and document collection in the football
(soccer) domain and a corresponding automatically extracted knowledge
base. Participants will be free to use this or other data, but are
encouraged to (also) use the OLP2 data set
(http://www.dfki.de/sw-lt/olp2_dataset/) for their experiments in order
to better compare results with other participants.
An additional topic we intend to address at this workshop is the
relation between NLP and ontology development, the communities of which
are working on similar topics but using different terminology. As this
leads to a confound communication, the potential for interdisciplinary
work becomes much less pronounced. We therefore intend the workshop to
contribute to an enhanced interdisciplinary understanding of tasks,
methods and evaluations.
Areas of Interest
To provide a clear focus we request novel work on:
- Concept formation on the basis of text
- Learning concept hierarchies / non-taxonomic relations / rules /
axioms from text
- Named-Entity Recognition with respect to an ontology
- Ontology-based information extraction
- Ontology learning for IE, IR, MT, QA
- Gold standard and task-based evaluation of ontology learning, e.g. in
IE, IR, MT, QA
Important Dates
April 17th Submission Deadline
May 17th Notification
June 2nd Camera-ready Version
July 22nd Workshop
Submission
Submissions should follow the two-column format of ACL proceedings and
should not exceed eight (8) pages, including references. Submission will
be electronic. The only accepted format for submitted papers is Adobe
PDF. The papers must be submitted no later than April 17, 2006. Papers
submitted after that time will not be reviewed.
Organizing Committee
Paul Buitelaar - DFKI, Germany
Philipp Cimiano - AIFB, Univ. of Karlsruhe, Germany
Berenike Loos - European Media Lab, Germany
Program Committee
Eneko Agirre - Basque Country University, Spain
Enrique Alfonseca - Universidad Autonoma de Madrid, Spain
Nathalie Aussenac-Gilles - IRIT-CNRS Toulouse, France
Timothy Baldwin - University of Melbourne, Australia
Roberto Basili - Universita di Roma "Tor Vergata", Italy
Johan Bos - Universita di Roma "La Sapienza", Italy
Christopher Brewster - University of Sheffield, UK
Massimiliano Ciaramita - LOA-ISTC, Italy
Nigel Collier - National Institute of Informatics, Japan
Ido Dagan - Bar Ilan University, Israel
Eric Gausier - XEROX XRCE, France
Asuncion Gomez-Perez - Universidad Politecnica de Madrid, Spain
Marko Grobelnik - Jozef Stefan Institute, Slovenia
Siegfried Handschuh - DERI Galway, Ireland
Andreas Hotho - University of Kassel, Germany
Eduard Hovy - USC, Information Sciences Institute, USA
Vipul Kashyap - Partners HealthCare System, USA
Bernardo Magnini - ITC-IRST, Italy
Diana Maynard - University of Sheffield, UK
Adeline Nazarenko - LIPN-Universite Paris-Nord, France
Claire Nedellec - MIG, INRA, France
George Paliouras - NCSR "Demokritos", Greece
Patrick Pantel - USC, Information Sciences Institute, USA
Robert Porzel - European Media Lab, Germany
Marie-Laure Reinberger - Universiteit Antwerpen, Belgium
Marta Sabou - Knowledge Media Institute, UK
Michael Sintek - DFKI, Germany
Peter Spyns - Vrije Universiteit Brussel, Belgium
Steffen Staab - University of Koblenz-Landau, Germany
Vojtech Svatek - University of Economics, Prague, Czech Rep.
Paola Velardi - Universita di Roma "La Sapienza", Italy
Dominic Widdows - MAYA Design, USA
Workshop Registration
All workshop participants must register for COLING/ACL 2006
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