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Offline aAQUA

Offline aAQUA. Availability: Offline Access . Works in resource constrained environment intermittent and low bandwidth connectivity Low speed/memory devices Complete aAqua can be navigated and searched in disconnected mode. Offline post also possible. Fast searching and browsing experience

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Offline aAQUA

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  1. Offline aAQUA

  2. Availability: Offline Access • Works in resource constrained environment • intermittent and low bandwidth connectivity • Low speed/memory devices • Complete aAqua can be navigated and searched in disconnected mode. Offline post also possible. • Fast searching and browsing experience • Delta of updates transferred between client and server. • Handles heterogeneous database synchronization

  3. Repository Light Db (SQLite) aAqua Offline Design aAqua on internet Indexing Engine (lucene) Store threads Build index Post messages and fetch new or updated threads Client Application Read threads Search Light Web Server (lighttpd) Read Write Update database for new threads Browser

  4. Offline aAQUA demo

  5. Digital Library

  6. What is a DL? Some definitions: • “A digital library is an organized and focused collection of digital objects, including text, images, video and audio, along with methods for access and retrieval, and for selection, creation, organization, and maintenance of the collection.” - Ian Witten et al.(Univ. of Waitako, NZ) • “ A DL is a managed collection of information,with associated services,where the information is stored in digital formats and accessible over a network. A crucial part of this definition is that the information is managed. A stream of data sent to earth from a satellite is not a library. The same data when organized systematically becomes a digital library.” - William Arms(Cornell Univ.)

  7. Why DL? • Manage content over the internet/intranet • “Content” can include pdf,text, doc, html, mp3, avi, email, ppt, jpg files • Useful as • Library: school, college, university, public, R&D, corporate, etc. • Publishing, Archiving of periodicals, research papers etc • Knowledge management system: universities, companies etc • Scalability and Maintainability • advantages over maintaining a website of HTML pages • Searchablity • Metadata • Published on CD-ROM/DVD • Size - Up to several GB of text • Usage monitoring and reporting • Standards compliance • XML, Dublin Core, Unicode

  8. Some Open source DL Tools • D Space • GNU Eprints • Greenstone

  9. DSpaceMIT Libraries, Cambridgefunded by HPhttp://www.dspace.org/

  10. GNU EprintsUniversity of Southampton, U.K.http://software.eprints.org/

  11. Greenstone Digital library software New Zealand Digital Library Project, University of Waikatohttp://www.greenstone.org

  12. A few examples

  13. A few examples … contd

  14. IIT - Bombay Doctoral Theses Library

  15. A few examples … contd

  16. Comparison of Tools

  17. Why we chose Greenstone DL? • Usability: • User-friendly interfaces • Availability and Access: • Accessible via any Web browser • Accessible even without internet (and updateable) • Server runs on Windows / Unix / Mac OS/X • Reusable (Searching/browsing) • Full-text and fielded search • Flexible browsing facilities • Metadata-based (Dublin Core) • Collection-specific • Hierarchical phrase browsing supported • Creates all access structures automatically • Multilingual • Documents and interfaces – Hindi, Chinese, Arabic, Maori, Russian etc • Multimedia • video, audio collections • Extensible • Plugins — support new document, metadata formats • Classifiers — help in creation of new metadata browsers

  18. Architecture Fig.1 - Overview of the Greenstone system Fig. 2 - Overview of the Runtime system

  19. Digital Library for Farmers

  20. Motivation • Suggestions from Krishi Vigyan Kendra, Baramati to make digital repositories of • Crop Recommendations from Agricultural Universities • Crop Doctor – Diagnose diseases through a collection of diseased crops’ images • aAQUA Q&A Translations – Access aAQUA Q&A in 3 languages (Eng, Hindi, Marathi)

  21. How is the Digital Library Maintained? • Content stored in aAQUA by KVK experts in a separate forum • A computer program extracts the content • Keywords are extracted based on a template provided – this helps in organizing the content (categorizing by crops, diseases etc) • Archived in the digital library • Usability is improved with feedback from users • New collections identified

  22. Agricultural collections for farmers and Agri-practitioners

  23. Crop Recommendations University recommendations for different crops grown in Maharashtra, collected by experts at KVK. Contains recommendations for about 50 crops, classified under categories viz., fruits, vegetables, etc.

  24. Crop Doctor Contains information about different crop diseases with images and other diagnostic information about the disease such as symptoms, causative factors, preventive and control measures, etc. It also has a special section on biological control of pests and diseases. Info can be browsed by commodity names or disease names.

  25. Translated aAQUA Q&A Contains translations of aAQUA Q&A in English, Hindi and Marathi (courtesy- CFILT, IIT Bombay). Information can be viewed in any of the 3 languages. Documents organized by commodity names and languages.

  26. DL Demo

  27. Thank You

  28. Backup slides

  29. Detailed offline aaqua architecture

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