Submissions:Context Slices

2010-08-20T02:24:32Z

File:Context.-slices-example.jpg

2010-08-18T02:50:55Z

ChrisWelty: An example that illustrates the context slices logical pattern

An example that illustrates the context slices logical pattern

Ontology:OntoClean Meta-Property Ontology

2010-02-17T17:28:20Z

ChrisWelty: New page: {{Ontology |Name=OntoClean Meta-Property Ontology |OntologyOrganization=LOA-CNR |OntologyAuthor=Chris Welty, Nicola Guarino |Description=An OWL version of the OntoClean (meta) Ontology of ...

{{Ontology
|Name=OntoClean Meta-Property Ontology
|OntologyOrganization=LOA-CNR
|OntologyAuthor=Chris Welty, Nicola Guarino
|Description=An OWL version of the OntoClean (meta) Ontology of Properties
|SubmittedBy=ChrisWelty
|OntologyPurpose=To express the constraints of the OntoClean ontology as OWL axioms.
|OWLImplementation=http://www.ontoclean.org/ontoclean-dl-v1.owl
|LongDescription=The axiomitization of OntoClean in S5 modal logic entails certain constraints between classes in a taxonomy. These constraints are well within the expressive power of OWL, given the ability to view the *classes* as an "abox" and declare their metaproperties using the rdf:type relation. One very simple way to accomplish this, is to take the OWL version of an ontology, and in a text editor replace owl:class with "http://www.ontoclean.org/ontoclean-dl-v1.owl#Class", and import this ontology. Then add the rdf:type relations to indicate which classes are rigid, dependent, etc. Any OWL reasoner will be able to find inconsistencies in the taxonomy as a result.
|Justification=OntoClean was one of the first (if not the first) formal tools for ontological analysis, which was intended to clarify the different types of taxonomic structures typically seen in ontologies. The most common OntoClean distinction is rigidity. See http://semanticweb.org/wiki/OntoClean
|RecommendedBy=Chris Welty
|CompetencyQuestion=Are the different uses of the subclass relation used consistently?
|Domain=Community:Ontology
|WebReference=http://semanticweb.org/wiki/OntoClean
|OtherReference=http://en.wikipedia.org/wiki/Ontoclean
}}

WOP:2009

2009-06-15T21:16:09Z

ChrisWelty: /* Workshop Focus and Relevance */

== Welcome to the Workshop on Ontology Patterns - WOP2009 ==
This is the first edition in a series of yearly workshops addressing the emerging topic of ontology patterns as best practices, related to the [[Ontology_Design_Patterns_._org_(ODP) |''ontologydesignpatterns.org'']] initiative. Patterns need to be shared by a community in order to provide a common language and stimulate pattern usage and development. Hence, the aim of this workshop is twofold; both providing an arena for proposing and discussing good practices, patterns, pattern-based ontologies, systems etc., and broadening the pattern community that will develop its own “language” for discussing and describing relevant problems and their solutions.

The first workshop will be held at [http://iswc2009.semanticweb.org/ ISWC] on October 25th 2009. It will be a full-day workshop consisting of three parts; paper presentations, posters, and “pattern writing” sessions. For the pattern writing sessions ontology design patterns will be submitted and reviewed at [[Ontology_Design_Patterns_._org_(ODP) |''ontologydesignpatterns.org'']], including the assignment of an advisor for each accepted pattern submission.

__TOC__

== Workshop Focus and Relevance ==
As interest in the Semantic Web increases and technologies for realizing the semantic web become more mature, the need for high-quality and reusable semantic web ontologies increases. To address the quality and reusability issues, different types of Ontology Design Patterns (ODPs) have emerged. Patterns can supply ontology designers with several kinds of benefits, including a direct link to requirements, reuse, guidance, and better communication. ODPs are well on their way to providing those benefits. ODPs have been [http://www.w3.org/2001/sw/BestPractices/OEP/ proposed by the W3C] and are currently being collected in various repositories, such as the [http://www.gong.manchester.ac.uk/odp/html/index.html catalogue maintained by the University of Manchester] and the ODP portal at [[Ontology_Design_Patterns_._org_(ODP) |ontologydesignpatterns.org]]. However, pattern catalogues are still small and do not cover all types of patterns and all domains. Semantic Web applications could also benefit from additional types of patterns, such as knowledge patterns and specialized software patterns for semantic applications. In addition, to achieve communication benefits, patterns need to be shared by a community in order to provide a common language for discussing and understanding modeling problems. The workshop can leverage the activities conducted in the ontologydesignpatterns.org initiative, and aims to use the portal as its main means of communication, e.g. for pattern submission, reviewing and discussions outside the workshop schedule.

Reuse has been an important research subject in ontology engineering for many years, and this is also true for the semantic web community. Patterns are an approach to knowledge reuse that has proved feasible and very profitable in many other areas such as software engineering and data modeling. During the past few years, patterns for semantic web ontologies and ontology-based applications have been introduced, and at this point in time we believe that the community would highly benefit from a series of workshops focusing on this particular topic. An earlier workshop, [http://www.research.ibm.com/people/w/welty/OPSW-05/ Ontology Patterns for the Semantic Web] , was arranged at ISWC2005, however at that time the community was considerably smaller. The focus then was on discussing reusable OWL and RDF ontologies addressing general open problems. The WOP series broadens this scope to include all patterns related to ontology design and knowledge engineering for the Semantic Web. This is in line with the successful [http://ekaw2008.inrialpes.fr/ EKAW2008] conference (with the sub-title Knowledge Patterns). Topics of this conference included ontology engineering patterns but also patterns for re-engineering of knowledge resources, process knowledge, social and cognitive aspects of semantics.

A workshop should be a practical and interaction-rich event, hence the workshop will have three parts: regular papers, posters, and “pattern writing”, with a focus on the latter. The inspiration for this model comes from the [http://hillside.net/patterns/patternworkshop.htm pattern writing workshops for software patterns]. The aim is to promote development and review of actual patterns, rather than papers describing patterns. Related events are also [http://vocamp.org/wiki/VoCampIbiza2009 VoCamps] for writing vocabularies for the Semantic Web.

== Topics ==
The main aim of the workshop is to discuss and collect best practices and experiences, hence submissions should focus on some notion of best practices. Original research papers and poster papers are invited to consider the following (non exhaustive) list of topics:
* Good practices of ontology design
* Good practices for hybridization of semantic web and NLP techniques
* Software patterns for semantic web applications
* Ontology design patterns (ODPs) and pattern-based ontology design
* Tools and applications for pattern-based knowledge engineering
* Collaborative ontology design and collaboration patterns
* Pattern-based ontology evaluation and selection
* Correspondence patterns for ontology matching and integration
* Automatic ontology construction (ontology learning) based on patterns
* Lexico-syntactic patterns
* Reasoning patterns
* Web semantics from a pattern perspective
* Patterns of semantic social networks, semantic wikis, semantic blogs
* Contextual reasoning and patterns as context
* Knowledge patterns and knowledge re-engineering based on patterns
* Re-engineering patterns for conceptual models, folksonomies, lexicons, thesauri
* Pattern-based information extraction
* Processes and services - process patterns
* Problem solving methods and patterns
* Quality evaluation of patterns
* Benefits of ontology patterns and knowledge patterns

Pattern proposals for the “pattern writing” sessions will be collected through the [[Ontology_Design_Patterns_._org_(ODP) | ODP portal]], and templates for submission are provided for the following types of patterns (see general [[OPTypes | typology]] for explanation of the types):
* Content patterns
* Structural patterns: logical and architecture patterns
* Correspondence patterns: re-engineering and alignment patterns
For other types of patterns, or if the author wishes to elaborate on theoretical rather than practical aspects, a pattern description may be submitted as either a research paper or poster paper.

== Important Dates and Submission ==
For details on how to submit to WOP2009 see the [[WOP2009:Submission | submission page]]. Research papers and poster submissions, as well as extended abstracts describing the accepted patterns, will be published online in the CEUR-Workshop Proceedings.

'''Important dates'''
* Submission deadline (papers and patterns) - '''August 9'''
* Notification of acceptance (papers and patterns) - '''September 7'''
* Camera ready deadline (papers and pattern abstracts) - '''September 21'''
* Upload of final pattern version (patterns) - '''October 9'''
* Online proceedings published (papers and pattern abstracts) - '''October 9'''
* Workshop date - '''October 25'''

== WOP Organisation ==
The workshop series is arranged by a fixed steering committee, appointing the chairs and adjusting the focus of the workshop on a yearly basis.
The WOP Steering committee consists of:
* Eva Blomqvist, ISTC-CNR (IT)
* Aldo Gangemi, ISTC-CNR (IT)
* Valentina Presutti, ISTC-CNR (IT)
* Alan Rector, University of Manchester (UK)
* Francois Scharffe, INRIA (FR)
* Steffen Staab, University of Koblenz (DE)
* Chris Welty, IBM Watson Research Center (US)

WOP2009 Chairs:
* Paper chair - Kurt Sandkuhl, Jönköping University (SE) [http://www.jth.hj.se/doc/6771 ''contact'']
* Poster chair - Vojtech Svatek, University of Economics, (CZ) [http://nb.vse.cz/~svatek/welcom_e.htm ''contact'']
* Pattern chairs - Eva Blomqvist, ISTC-CNR (IT) [http://stlab.istc.cnr.it/stlab/User:EvaBlomqvist ''contact''] and Francois Scharffe, INRIA (FR) [http://www.scharffe.fr/ ''contact'']

Program Committee (To be completed...)

* Alessandro Adamou, ISTC-CNR (IT)
* Marie-Aude Aufaure, Ecole Centrale Paris (FR)
* Fabio Ciravegna, University of Sheffield (UK)
* Mathieu D'Aquin, Open University (UK)
* Enrico Daga, ISTC-CNR (IT)
* Violeta Damjanovic, Salzburg Research (AT)
* Rim Djedidi, Paris-Sud University (FR)
* Henrik Eriksson, Linköping University (SE)
* Aldo Gangemi, ISTC-CNR (IT)
* Jose-Manuel Gomez, Universidad Politécnica de Madrid (ES)
* Gerd Groener, University of Koblenz (DE)
* Luigi Iannone, University of Manchester (UK)
* Holger Lewen, AIFB University of Karlsruhe (DE)
* Pierluigi Miraglia, Gerson Lehrman Group (US)
* Mark Musen, Stanford University (US)
* Natasha Noy, Stanford University (US)
* Wim Peters, University of Sheffield (UK)
* Valentina Presutti, ISTC-CNR (IT)
* Alan Rector, University of Manchester (UK)
* Marta Sabou, Open University (UK)
* Guus Schreiber, VU University Amsterdam (NL)
* Steffen Staab, University of Koblenz (DE)
* Mari Carmen Suárez-Figueroa. Universidad Politécnica de Madrid (ES)
* Boris Villazón-Terrazas, Universidad Politécnica de Madrid (ES)
* Holger Wache, University of Applied Sciences Northwestern Switzerland (CH)
* Chris Welty, IBM Watson Research Center (US)