Download - Web24dev Icrisat 2
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Use of Semantic Wiki Tool to Build a Repository of Reusable Information Objects in Agricultural
Education and Extension : results from a preliminary study
Pritpal Kaur, Shelly Patwar, Gerard Sylvester, V Balaji*
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Scenario Today : a twin challenge
• Agricultural content is often dispersed and there is no unified view to integrate the resources. Unified view is badly needed.
• Multiple challenges in localization, customization and delivery to extension workers and educators.
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Towards a Solution…..
• Semantic Tools provide for Knowledge Representation & Sharing
– Unified knowledge/resource organization model feasible– can provide integrated view
– Specialized and enhanced navigation
– Can provide for rapid information aggregation from reusable information objects
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ICRISAT experiment : objective
• Better, more efficient extraction from, and aggregation of, agricultural information resources, along with
– Better Content Navigation– Better Content Organization
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Tools and methods
• Content Organization (Semantic Mediawiki (primary) & Topic Map (secondary))
• Content Packaging (eXe Editor)
• Content Navigation (Topic Maps & Semantic Mediawiki)
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Sources of Content: Wikipedia and VASAT Web site
• Virtual Academy for the Semi-Arid Tropics (VASAT) is a strategic alliance of National and International partners aimed at combating drought in the Semi-Arid Tropics.
• Generates literacy-style content online (www.icrisat.org/vasat/learning_resources)
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Semantic VASAT Wiki Ingredients
+ + =
FAO’s AGROVOC provides the Ontology to link information objects in the Wiki facilitated by OntoWorld’s Semantic Tool
Semantic ToolMediaWiki S/w FAO’s AGROVOCSemantic
VASAT Wiki
http://vasatwiki.icrisat.org
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Process with Semantic MediaWiki + Ontology
• Uploaded agricultural content onto VASAT wiki from Wikipedia
• Uploaded learning modules from VASAT Learning Objects Repository
• Categorized content according to AGROVOC
• Manually divided available articles into information objects
• Created semantic relationships
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Process Workflow
Curation
SemanticVASAT Wiki
VersionStaging
Agriculture articleExtract
Agricultural Articles
Wiki +
Semantic tool +
Ontology
CommunityReview
http://vasatwiki.icrisat.org/
Information objectsVASAT LO
Repository
AGROVOC Ontologies, categorization
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Information Objects on VASAT Wiki
Wikipedia Articlehttp://en.wikipedia.org/wiki/peanut
VASAT Wiki Articlehttp://vasatwiki.icrisat.org/index.php/Groundnut
Article extracted and Semantic links established manually
1 23
4
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Topic Map for VASAT’s Learning Objects
VASAT LO repository
AGROVOC
ICRISAT’sCrop Topic Map
Available at: http://test2.icrisat.org/
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Aggregate Resources
Content aggregated from VASAT Wiki
Content from externalWebsite
Integrate content from various sources
Content aggregated thus could also be exported to various formats
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Wiki Article
External Website
Aggregate Content
Content Aggregation from different sources using eXe
Export Content
1 2
34
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Content RepurposingContent repackaging and repurposing for export to many formats (compatible with SCORM, IMS-global for LMS and as HTML and to i-POD)
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Looking Forward…
Content Organization
Ontology + Wiki-like interface
Intl.agencies
OtherNARS
agenciesCommodity
Markets
Weather / Meteorology
DynamicData
K-Base
Imagery/Maps
Village center
NGOs
Q&A; activitieslog
PublicNARS
agencies