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Transcript of 23.01.2006, 1/21, © Library and Documentation Systems Division 21 st APAN Meeting Tokyo, 22-26...
23.01.2006, 1/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
From Thesauri to the Agricultural Ontology Service:
the FAO initiative
21st APAN MeetingTokyo, 22-26 January 2006
23.01.2006, 2/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
The question 'How does a thing become conscious?‘
could be put more advantageously thus: 'How does a thing become pre-
conscious?'. And the answer would be:
'By coming into connexion with the verbal images that correspond to it.
--Freud
23.01.2006, 3/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Outline
• AGROVOC today• Intelligent web applications• Basis and architecture elements of the
AOS system• Achieving our objectives / Project plans• Open issues
23.01.2006, 4/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
AGROVOC today Internationally used Multilingual Maintained as a relational database Distributed in several formats (RDBMS,
TagText, ISO2709, SKOS, OWL) Available through Web Services
Term-based Limited semantics
23.01.2006, 5/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Intelligent web applications (1/2)
vessel bateau
shipvessel
navirebarco
23.01.2006, 6/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Intelligent web applications (2/2)• Improved search
– Cross-language– Query expansion
• Federated search / Terminology brokering • Semantic navigation• Inferencing / Reasoning• Machine learning• Better results display
– Clustering– Ranking
23.01.2006, 7/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Basis of the AOS system (1/2)
RDBMSAGROVOC
RDFS formats(e.g. SKOS)
Improvedstructure
Improvedstructure
23.01.2006, 8/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Basis of the AOS system (2/2)
• Concept based• More semantics• “Language independent”• Possibility of interoperability with other KOS• Web enabled
Ontology + OWL
Improvedstructure
23.01.2006, 9/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
AOS architecture elements:What is an Ontology
Explicit representation of domain knowledge Concepts are uniquely defined Capability of performing reasoning or making
inferences Ontologies can be used
• by humans for knowledge sharing and• by software agents for knowledge processing
23.01.2006, 10/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
AOS architecture elements:What is OWL
• Representation format• Built in top of RDFS• Simple and complex semantics representation • Easily sharable across the Web• Ontology interoperability• Reasoning
23.01.2006, 11/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
AOS architecture elements:Core Elements
Ontology Registry
Sub-domainontologies
Metadataontologies
• Built from AGROVOC • Domain concepts• Categories
AGROVOCConcept Server
Improvedstructure
23.01.2006, 12/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
AOS architecture elements:Overall picture
AOS/CSWorkbench
AGROVOCOWL
export
AGROVOCRDFS formats(e.g. SKOS)
andTagTextISO2709
Other thesauriand
terminologies
integration
ABACA NT1 Food NT2 AppleANIMAL BT Organ NT ....
mappingABACA NT1 Food NT2 AppleANIMAL BT Organ NT ....
Other thesauriand
terminologies
23.01.2006, 13/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Achieving our objectives
• Refine semantics and enrich lexicon• AOS/CS Workbench for terminology and
ontology development and maintenance
23.01.2006, 14/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
What more semantics meansMAIZE
UF corn NT flint maize NT popcorn NT sweet corn
MILKNT Milk Fat NT ColostrumNT Cow Milk
International Fund for Agricultural Development
UF IFAD
MAIZEsynonym cornsuperclass-of flint maize used-to-make popcorn hybridized-into sweet corn
MILKingredient Milk Fat ingredient Colostrumsuperclass-of Cow Milk
International Fund for Agricultural Development
acronym IFAD
23.01.2006, 15/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
The AOS/CS-Workbench (1/2)• Support and manage the multi-language
terminology (development, maintenance, and quality assurance)
• Features– Text processing– Corpus Creation– Corpus Analysis– Term/Relationship
Management– Quality Assurance– Versioning and
Deployment
23.01.2006, 16/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
The AOS/CS-Workbench (2/2)
.doc, .pdf, .xml, etc.
Concept Hierarchy
inpu
t
AOS/CSWorkbenchconcordance pattern-matchingmultilingual
text corpus
input
23.01.2006, 17/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Project plans• Definition of the supporting format• Design of the new AGROVOC OWL structure• AGROVOC data cleaning and refinement• AGROVOC conversion to OWL: distinction
between terms and concepts whenever possible; AGROVOC-OWL version1 for tests; final OWL version soon;
• Design and implement the maintenance system
23.01.2006, 18/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Open issues• Ontology lifecycle• Ontology mapping• Ontology merging• No more words but URIs in IS• Better exploitation of the potentiality at the
application level: powerful IR• AOS Workshops + training• Ontology Web services (OWS)
23.01.2006, 19/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Take-home message• There are many uses for terminology + ontology
systems in food and agriculture, both for information access and information processing
• FAO has several projects using such systems• FAO is deploying the
Agricultural Ontology Server (AOS)as a global resource
• FAO is refining AGROVOC and other terminology + ontology systems and is building AOS/CS Workbench, a tool to support this effort
23.01.2006, 20/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Concluding...
From here....
To here....
23.01.2006, 21/21, © Library and Documentation Systems Division
21st APAN MeetingTokyo, 22-26 January 2006
AGROVOC and AOS, Margherita Sini, FAO
Questions?
Thank you.