1. Prabhakar TV 1 Agropedia Knowledge Models Launch Workshop Prabhakar TV 12 Jan 2009

2. Prabhakar TV 2 What is agropedia? Agriculture Knowledge Repository of universal Meta models and localized content for a variety of users with appropriate interfaces Built in collaborative mode in Multiple languages This sounds like a slogan..

3. Prabhakar TV 3 What is agropedia It is a Semantic Web Application What is Semantic Web? It is a web application that understands the domain. What do you mean understands the domain

4. Prabhakar TV 4 Pigeonpea domain model

5. Prabhakar TV 5 Pigeonpea Domain Model

6. Prabhakar TV 6 How is the domain model useful? Search – Syntactic search vs. semantic search – Google does syntactic search – Google searches for the occurrence of the sub- string – Google can not show me all the photographs of insect-pests of Pigeon Pea Inference – How do I manage this insect-pest? Teaching and Training

7. Prabhakar TV 7 This domain model is what we are calling knowledge model OK Tell me more...

8. Prabhakar TV 8 Knowledge Models A knowledge model is a function of its use For the same domain one needs multiple models depending on the – use(indexing, inference:expert systems.. ), – user(scientist, extension worker..) All such models need to be consistent and coherent Research needed to identify these different models and build them They get used in tagging

9. Prabhakar TV 9 Knowledge Models Controlled Vocabulary – The concepts and the terms that are used in that domain Taxonomy – A hierarchic organisation – Broader Term, Narrower Term – Linneaus Thesaurus – Has more relationships than a taxonomy – like Related term - Agrovoc Topic Maps – Specially suited for content organisation Ontology – rich knowledge model; user defined relationships,...

10. Prabhakar TV 10 How do we build a Knowledge model? Many tools like Protégé, NeOn Toolkit, TM4L We use a very simple tool call cmap tools Helps us build concept maps Concept maps are graphical representations of the various terms and their relationships in a domain Very easy to learn and use Can be used to build Taxonomies, thesaurus, ontology, topic maps....

11. Prabhakar TV 11 Concept Map

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13. Prabhakar TV 13 Generic model (one for all crops) Specific models (One for each crop) Knowledge Models

14. Prabhakar TV 14 What we did in the project so far Built a generic crop knowledge model Developed specific crop knowledge model for 9 crops Built a content management system Built an tagging system for this content based on the crop knowledge models Built a syntactic and semantic search using the using the knowledge model All this is hosted at http://www.agropedia.net

15. Prabhakar TV 15 this is a document about rice and its pests..... Once the rice ap- pear in the world..... Mad Cow Disea- se is the commonly used name for Bovine Spongiform Encephalopathy (BSE).... docs, pdf, txt,... jpg, gif, bmp,... wav, audio,... htm, html,..,... author:... subject:.... identifier:.... author:... subject:.... identifier:.... author:... subject:.... identifier:.... author:... subject:.... identifier:.... Meta Tags, derived from KMs Content Keyword search User Interfaces Knowledge Models Users agropedia Architecture..

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17. Prabhakar TV 17 What next? Content, content, content Applications, services Community building, social networks

18. Prabhakar TV 18 Thank you