copyright 2006 digital enterprise research institute. all rights reserved. marcont initiative tools...
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Copyright 2006 Digital Enterprise Research Institute. All rights reserved.
www.deri.ie
MarcOnt Initiative
Tools for collaborative ontology development
Maciej Dąbrowski, Sebastian Ryszard KrukDigital Enterprise Research Institute
National University of Ireland, Galway
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Outline
• Motivation
• Ontologies in the world of digital libraries
• MarcOnt Tools
• MarcOnt Portal
• MarcOnt REST SOA
• Future work
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Motivation
World of Digital Libraries
Identified Problems:• Interoperability• Format translation
Multiple data formats in DL:• How to support them?• How to translate between them?• Who should create mappings?
Bibtex
MARC21
Dublin Core?
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Real-life problems – user’s expectations
Searching:
• Effective and AccurateWe want correct and fast answers!!
• Intuitive and SimpleAsking questions should be easy.
• MeaningJaguar – a car or an animal?
• ReasoningGive me articles written by students of X in Galway?
Identified problems:
• Intuitive interface for asking complex querries
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Real-life problems - summary
Digital Libraries should provide:
• Interoperability
• Support for many formats
• Complex search features
• Intuitive interfaces
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Usecase scenario
Author
Title
Structured resources:• Author• Title
Data storage allows:• Author • Title
Additional information
cannot be stored!!
Author
Title
Date
TitleAuthor
Regular Systems
Author TitleDate
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MarcOnt Initiative
Motivation:
• Build a bibliographic ontology for the Jerome Digital Library
MarcOnt Initiative goals:
• Deliver a set of tools for collaborative ontologydevelopment
• Collaboration
• Tools for domain experts
• Enable mediation between formats (MMS)
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MarcOnt Ontology
• Central point of MarcOnt Initiative
• Translation and mediation format
• Continuous collaborative ontology improvement
• Knowledge from the domain experts
• Community influence and evaluation
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MarcOnt Ontology
Goals:
• Capture concepts from the legacy bibliographic formats– MARC21, Bibtex, Dublin Core– Lattes, ...
• Create a uniform bibliographic description format for digital libraries.
• Enable the use of Semantic Web technologies (eg. reasoning) to improve capabilities of digital libraries
• Improve interoperability
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Format Translation Scenario
Author:John SmithDate of Birth:1956-10-15Date of death:2004-09-10
Author:John SmithDate of Birth:??Date of death:??
Author:John SmithDate of Birth:??Date of death:??
Author:John SmithDate of Birth:??Date of death:??
Dublin Core
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Format Translation Scenario
Author:John SmithDate of Birth:1956-10-15Date of death:2004-09-10
Author:John SmithDate of Birth:??Date of death:??
Author:John SmithDate of Birth:??Date of death:??
Author:John SmithDate of Birth:1956-10-15Date of death:2004-09-10
RDF Storage
Dublin Core
Author:John SmithDate of Birth:1956-10-15Date of death:2004-09-10
Author:John SmithDate of Birth:1956-10-15Date of death:2004-09-10
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MarcOnt Tools
• MarcOnt Initiative involves development of tools:– MarcOnt Portal – enabling collaborative ontology
development– MarcOnt Mediation Services (MMS) – allows users to
retrieve the description of the given bibliographic resource in multiple formats
– RDF Translator – tool for RDF data translation between formats using the set of given mapping rules
– Rulegenerator – allows defining mapping (translation) rules between concepts from different ontologies.
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MarcOnt Mediation Services
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MarcOnt Mediation Services
MarcOnt OntologyMarcOnt RDF
MARC21 RDF
MARC21 XML
MARC21
Bibtex RDF
Bibtex XML
Bibtex
New format RDF
New format XML
New format
Format translationInteroperability
MarcOnt Mediation Services RDF Translator
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Rulegenerator – a tool for mapping rules creation
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MarcOnt Portal
• Goals– Deliver set of tools for domain experts enabling ontology
development– Support collaborative ontology development process
• Requirements– Easy access (no installation)– Intuitive interface– Ontology editing and versioning– Ontology visualizations
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MarcOnt Portal - architecture
MarcOnt portal GUI
Otherfunctionality
Mapping rulesgenerator
EditorVersioning GUI
MarcOnt portal verisoning system
Filesystem datastore
SemVersionSessionmanager
Web browser
MarcOnt Portal
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MarcOnt REST SOA
• REST idea
• RDF input/output
• OWL-S descrption of services
• RDF parameters validation
• Complex services
Web browser
MarcOnt
User Management
RepositoryManagement
Rating And Voting
Storage
Sesame SemVersion
Thick client
MarcOnt REST SOA
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REST Framework
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MarcOnt Portal – ontology lifecycle
Collaborative ontology development.
Portal provides:• Suggestions• Annotations• Versioning• Ontology editor
Sugested Poposals
Initial Ontology
Proposal discussion
Proposal anotations
Proposal votingProposal autopromoting
Versioning
Next RevisionMarcOnt Portal
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MarcOnt Portal - features
On-line ontology editing Visualization of ontologies
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MarcOnt Portal - features
Comparing versions of ontologies
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MarcOnt Initiative Roadmap
• Lattes – CV platform used in Brasil• Ontology visualisation and graphical edition• FOAF support and user profiling
• MarcOntX agent – automatic integration of concepts from Digital Libraries
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MarcOnt Portal Roadmap
• Re-architecture
• Research on REST-based SOA framework
• Improvement of user interface
• Higher reliability
• Thick client using MarcOnt SOA
• Digital Rights Management
• Support for information sharing standards
Web browser
MarcOnt
User Management
RepositoryManagement
Rating And Voting
Storage
Sesame SemVersion
Thick client
MarcOnt REST SOA
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MarcOnt Initiative and eLearning
• LO require rich description formats
• SOA architecture enables eLearning applications with support for LO description engineering
• Using other applications is not neccessary
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MarcOnt Initiative summary
MarcOnt Initiative goals:
• Create a framework for collaborative ontology development
• Provide domain experts with tools to share their knowledge
• Offer tools for data mediation between different data formats
• Develop MarcOnt bibliographic ontology
• Create a community of users (domain experts)
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MarcOnt Initiative references:
• http://www.marcont.org/
• http://portal.marcont.org/
• http://mms.marcont.org/
• http://wiki.marcont.org/REST/
• http://rdft.marcont.org/
• http://library.deri.ie/