Semantic Desktop

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An overview of the motivations and general features of the Semantic Desktop, specifically Nepomuk.

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Semantic Desktop

  1. 1. Digital Enterprise Research Institute www.deri.ie The Semantic Desktop© Copyright 2007 Digital Enterprise Research Institute. All rights reserved.
  2. 2. The Problem (1)Digital Enterprise Research Institute www.deri.ie  Information overload  Thousands of files in my home folder  Thousands of emails in my inbox  Hard to manage
  3. 3. The Problem (2)Digital Enterprise Research Institute www.deri.ie  Data encapsulation  Proprietary formats  Proprietary storage  Data duplication  Same data in several applications  Islands of information  Data not linked  Lacks context, provenance  Relevant information overlooked
  4. 4. ObjectivesDigital Enterprise Research Institute www.deri.ie  Data interoperability  Structured and linked data based on Semantic Web technologies  Make the desktop manageable
  5. 5. Semantic Web technologiesDigital Enterprise Research Institute www.deri.ie  Enabling standards and technologies (the SW Layer Cake)
  6. 6. Key IngredientsDigital Enterprise Research Institute www.deri.ie  RDF – Resource Description Framework  W3C Standard  Ontologies  Means to define vocabularies of terms
  7. 7. StatementsDigital Enterprise Research Institute www.deri.ie  Basic unit of information  <subject> <predicate> <object>  Examples  <John> <age> “40”  <John> <likes> <Mary>
  8. 8. Nepomuk OntologiesDigital Enterprise Research Institute www.deri.ie Representational Layer RDF RDFS NRL Upper-Level Layer NAO NIE PIMO Foundational Lower-Level Layer Group-level Personal-Level All Concepts a User of the Semantic Desktop deals with All Concepts an Application Programmer of the Semantic Desktop deals with
  9. 9. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  10. 10. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  11. 11. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  12. 12. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  13. 13. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  14. 14. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  15. 15. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  16. 16. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  17. 17. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  18. 18. Approach (1)Digital Enterprise Research Institute www.deri.ie  Everything is a resource  Files, Emails, People, Tags  Projects, Hobbies  Linked via relations  Extracted automatically (eg. provenance)  Created manually
  19. 19. Approach (2)Digital Enterprise Research Institute www.deri.ie  Central storage  Accessible to all the applications  Standard format  Enables portability  Data is application independent  Data is shareable
  20. 20. Approach (2)Digital Enterprise Research Institute www.deri.ie  Central storage  Accessible to all the applications  Standard format  Enables portability  Data is application independent  Data is shareable
  21. 21. Approach (2)Digital Enterprise Research Institute www.deri.ie  Central storage  Accessible to all the applications  Standard format  Enables portability  Data is application independent  Data is shareable
  22. 22. Approach (2)Digital Enterprise Research Institute www.deri.ie  Central storage  Accessible to all the applications  Standard format  Enables portability  Data is application independent  Data is shareable
  23. 23. Standardized View of ResourcesDigital Enterprise Research Institute www.deri.ie Person Email Event Topic Person Website Document Image
  24. 24. Standardized View of ResourcesDigital Enterprise Research Institute www.deri.ie  Outcomes  Data can be shared, connected Person Email Event friend Topic Person Website Document Image
  25. 25. Standardized View of ResourcesDigital Enterprise Research Institute www.deri.ie  Outcomes  Data can be shared, connected Person Email Event friend Topic Person Website Document colleague Image 12 / 200
  26. 26. Standardized View of ResourcesDigital Enterprise Research Institute www.deri.ie  Outcomes  Data can be shared, connected Person Email Event friend Topic acquaintance Person Website Document colleague Image 12 / 200
  27. 27. User BenefitsDigital Enterprise Research Institute www.deri.ie  Important time savings  Easy data filtering  Faceted browsing  Information discovery 17 / 200
  28. 28. ConclusionDigital Enterprise Research Institute www.deri.ie  Solves the information overload problem  Solves the data silos problem  SW technologies and standards on the desktop  Increased data interoperability 18 / 200

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