The Gnowsis Semantic Desktop
approach to Personal Information
Management
Weaving the Personal Semantic Web
Dissertation Ta...
Overview

•   Research Background
•   Vision: Semantic Desktop
•   Building the Semantic Desktop
•   Evaluation
•   Result...
Background




                                             www.flickr.com/photos/wonderferret/1447024668


08.06.2009    ...
The knowledge worker’s problem
                                                  Meet in
                                 ...
Personal Space of Information
                                                   the CID
• around ~20.000 files           ...
The human user bears the burden
to hold everything together
                  Organising a meeting involves the whole
    ...
Research: Semantic Web
Framework for resource description, applicable
  across application and domain boundaries.

• ontol...
Research: Personal Information Management
PIM defined as the management of data in the
   personal information space as pe...
Objectives




                                            www.flickr.com/photos/wonderferret/1447024668


08.06.2009     ...
Contribution
create a software architecture model for the
Semantic Desktop and evaluate how it can
improve Personal Inform...
Building the Semantic
                Desktop



                                            www.flickr.com/photos/wonderf...
The Personal Information Model PIMO
                                                                                      ...
Services
• Local desktop semantic web server.
• Personal services for individual user.
                            Topic  ...
Semantic Applications

     Navigation         Personal Wiki        Resource Tagging           Application Plugins




   ...
Applications




                                              www.flickr.com/photos/wonderferret/1447024668


08.06.2009 ...
Miniquire Sidebar
                 Search


              PIMO Ontology
             viewer and editor

                  ...
PIMO Thing Editor
                                                      Relations
 wiki name = short                      ...
Application: Drop Box
  A new document needs to be filed
                                                                 ...
Services: Drop Box

                               Drop Box




             4         6                                  ...
Evaluation




                                            www.flickr.com/photos/wonderferret/1447024668


08.06.2009     ...
Evaluation Studies
• Expectation interviews
• Usability evaluation of personal semantic wikis
• Long-term study of PIM beh...
Expectation Questionnaire
• How does the Semantic Desktop differ from
  current state?

Method
• Interviews with 22 knowle...
Needs: Importance-Satisfaction Index
       high




       low                          high



08.06.2009            Sem...
After: Benefit for Areas




                  Persons are used in
                  folder names,
                  perso...
Usability & Usefulness Evaluation
• Preliminary work: two studies 2005 to warm up
• July 2006: two month study with 8 part...
08.06.2009   Semantic Desktop for PIM   28
2006 Results
• Expectation Questionnaire:
     – power users: most uses wikis before, half desktop search
• Good/Bad/most ...
2008 Long-Term behavior
•   2 users: KM workers, 2 years usage
•   For what did you use it?
•   Contextual inquiry
•   Pro...
Supports Orienteering Behavior
• “users go somewhere, look around, know where
  they are, go on”


                       ...
DropBox and Wiki intensively used
• meeting notes, brainstorming,
  link collections, literature reviews
• repurposing:
  ...
Implementation and Deployment
• Architecture model is implemented and
  provides the features for PIM.
• Aperture framewor...
Interpretation

A little semantics goes a long way                           CID   CID slides




• The Semantic Desktop i...
Outlook




                                         www.flickr.com/photos/wonderferret/1447024668


08.06.2009    Semanti...
Open Research threads
• Automatic model generation
       Files        E-Mails           Contacts
                        ...
Summary
   create a software architecture model for
   the Semantic Desktop and evaluate how
   it can improve Personal In...
</SemanticDesktop>
                                   </rdf:RDF>
Thanks to
Andreas Dengel           EU IST funding NEPOMUK...
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The Gnowsis Semantic Desktop approach to Personal Information Management - Dissertation defence talk

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Slides of my phd dissertation "The Gnowsis Semantic Desktop approach to Personal Information Management"

Presented on 5th June 2009 at University of Kaiserslautern to get a PhD in engineering science.

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The Gnowsis Semantic Desktop approach to Personal Information Management - Dissertation defence talk

  1. 1. The Gnowsis Semantic Desktop approach to Personal Information Management Weaving the Personal Semantic Web Dissertation Talk Leo Sauermann leo.sauermann@dfki.de http://www.dfki.de/~sauermann/
  2. 2. Overview • Research Background • Vision: Semantic Desktop • Building the Semantic Desktop • Evaluation • Results • Outlook and Open Questions 08.06.2009 Semantic Desktop for PIM 3
  3. 3. Background www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 4
  4. 4. The knowledge worker’s problem Meet in Belfast • The need to know more than you can remember. “On 21st March we meet in Belfast with the partners of the CID project. I need to prepare slides and talk with my colleague Dirk. Claudia Stern, knowledge worker 08.06.2009 Semantic Desktop for PIM 5
  5. 5. Personal Space of Information the CID • around ~20.000 files project in ~4.000 folders in many applications and formats • Hard-disk space grows the same rate as information grows files emails contacts Documents Inbox Claudia Stern Papers Todo Dirk Hagemann Projects SAP Klaus Nord CID CID-proj Research Karlsruhe 08.06.2009 Semantic Desktop for PIM 6
  6. 6. The human user bears the burden to hold everything together Organising a meeting involves the whole personal space of information E-Mails … organize Meeting Time Schedule in Belfast … “On 21st March we meet in Belfast with the partners of the CID project. Meeting Presentations I need to prepare slides and talk with my colleague Dirk. 08.06.2009 Semantic Desktop for PIM 7
  7. 7. Research: Semantic Web Framework for resource description, applicable across application and domain boundaries. • ontologies representing information? • architecture integrate! databases! identification Dirk Hageman = outlook://contact/000000009C998B6AFC07904AAAEC310F168000F6A4012000 08.06.2009 Semantic Desktop for PIM 8
  8. 8. Research: Personal Information Management PIM defined as the management of data in the personal information space as performed by the owning individual. • tasks filing, finding, thinking. • solutions cross-application! 08.06.2009 Semantic Desktop for PIM 9
  9. 9. Objectives www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 10
  10. 10. Contribution create a software architecture model for the Semantic Desktop and evaluate how it can improve Personal Information Management • Ontology to represent Information • Services to support Management • Interfaces for the Person 08.06.2009 Semantic Desktop for PIM 11
  11. 11. Building the Semantic Desktop www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 12
  12. 12. The Personal Information Model PIMO Ontologies Person • represents The CID Project Topic Project personal mental model Management Document • formal: classes, concepts, Claudia CID CID slides relations in RDFS Belfast Person Dirk • documents, e- Location mails, websites are Files E-Mails Contacts “tagged” with concepts Documents Inbox Claudia Stern Papers Todo Dirk Hagemann Projects SAP Klaus Nord CID CID-proj Research Karlsruhe Data is a Relation Annotation PIMO - a Framework for Representing Personal Information Models Sauermann, van Elst, Dengel (2007) http://www.dfki.uni-kl.de/~sauermann/papers/sauermann+2007b.pdf 08.06.2009 Semantic Desktop for PIM 13
  13. 13. Services • Local desktop semantic web server. • Personal services for individual user. Topic Project Document Management CID CID slides Claudia Karlsruhe Person Dirk Location 08.06.2009 Semantic Desktop for PIM 14
  14. 14. Semantic Applications Navigation Personal Wiki Resource Tagging Application Plugins web interfaces Domain Gnowsis Ontologies Personal RDF Store Data Server Outlook Wrapper User Context User Interface PIMO Store Outlook Desktop Search PIMO Resource Store Similarity Personal Wiki Configuration Store Files filesystem Service Store Tagging e-mail e-mail Text Index server 08.06.2009 Semantic Desktop for PIM 15
  15. 15. Applications www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 16
  16. 16. Miniquire Sidebar Search PIMO Ontology viewer and editor Filtering keeping orientation 08.06.2009 Semantic Desktop for PIM 17
  17. 17. PIMO Thing Editor Relations wiki name = short to other things unique name for things semantic wiki text Link to filesystem, email, outlook entry, anything integrated through Aperture.sf.net Text-Attributes: key/value pairs for datatype attributes 08.06.2009 Semantic Desktop for PIM 18
  18. 18. Application: Drop Box A new document needs to be filed PIMO of Claudia • simply store in Drop-Box folder doc: Project: CID, … CID, Dirk = Person: Dirk • files are text-analysed and … possible target folders are suggested • user sees suggestions • user selects a folder, classify • files are moved and classified • Learns from the user Sauermann, L.; Grimnes, G.A.; Kiesel, M.; Fluit, C.; Maus, H.; Heim, D.; Nadeem, D.; Horak, B. & Dengel, A. Semantic Desktop 2.0: The Gnowsis Experience ISWC 2006 08.06.2009 Semantic Desktop for PIM 19
  19. 19. Services: Drop Box Drop Box 4 6 1 Gnowsis Personal RDF Store Data Server Wrapper PIMO Store 7 3 2 Resource Store Similarity Files filesystem 5 Tagging Lucene Index 08.06.2009 Semantic Desktop for PIM 20
  20. 20. Evaluation www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 21
  21. 21. Evaluation Studies • Expectation interviews • Usability evaluation of personal semantic wikis • Long-term study of PIM behavior • Increasing search quality in proposal management • Implementation and deployment 08.06.2009 Semantic Desktop for PIM 22
  22. 22. Expectation Questionnaire • How does the Semantic Desktop differ from current state? Method • Interviews with 22 knowledge workers, 2h • Current PIM and needs interview • Demo and tutorial of semantic desktop on participants computer • Benefit interview 08.06.2009 Semantic Desktop for PIM 23
  23. 23. Needs: Importance-Satisfaction Index high low high 08.06.2009 Semantic Desktop for PIM 24
  24. 24. After: Benefit for Areas Persons are used in folder names, person categories in address book were not used. 08.06.2009 Semantic Desktop for PIM 26
  25. 25. Usability & Usefulness Evaluation • Preliminary work: two studies 2005 to warm up • July 2006: two month study with 8 participants – age 25-40, 1 female, all DFKI, 6 in our lab – 2 Students, 6 researchers, all knowledge workers • Procedure – Installation – team approach: weekly meetings – contextual interview Morse, E.L: Evaluation Methodologies for Information Management Systems D-Lib Magazine, 2002 08.06.2009 Semantic Desktop for PIM 27
  26. 26. 08.06.2009 Semantic Desktop for PIM 28
  27. 27. 2006 Results • Expectation Questionnaire: – power users: most uses wikis before, half desktop search • Good/Bad/most used – type-ahead function in wiki was a winner – Miniquire, Thing Editor, DnD, Starring, installer – Bad: Switching between web wiki frontend and Java Swing application – Software bugs cut away half of the study (email) – Said they liked wiki, dropbox, but did not use much • Ontology work – did scarcely create classes – used for project and event management, note keeping • Benefits and drawbacks of software. But why? 08.06.2009 Semantic Desktop for PIM 29
  28. 28. 2008 Long-Term behavior • 2 users: KM workers, 2 years usage • For what did you use it? • Contextual inquiry • Procedure – video recorded contextual interview – warm up questions “For what did you use it last?” – do a task, talk aloud • Cross-validate against logfile. 08.06.2009 Semantic Desktop for PIM 30
  29. 29. Supports Orienteering Behavior • “users go somewhere, look around, know where they are, go on” Filtering Long-term users stopped using web-search interface keeping orientation Teevan, J.; Alvarado, C.; Ackerman, M.S. & Karger, D.R. The perfect search engine is not enough: a study of orienteering behavior in directed search CHI 2004, pp.415-422 08.06.2009 Semantic Desktop for PIM 31
  30. 30. DropBox and Wiki intensively used • meeting notes, brainstorming, link collections, literature reviews • repurposing: “using wiki as task-list replacement” • DropBox – 386 and 149 times, allowed multi-tagging and fast filing • Wiki – 288 instances with 92 pages – 959 instances with 148 pages 08.06.2009 Semantic Desktop for PIM 32
  31. 31. Implementation and Deployment • Architecture model is implemented and provides the features for PIM. • Aperture framework used in commercial applications 12.121 downloads • Architecture adopted by KDE 4.0 as part of a mainstream operating system. In deployment to ~4 mio users 08.06.2009 Semantic Desktop for PIM 33
  32. 32. Interpretation A little semantics goes a long way CID CID slides • The Semantic Desktop improves typical PIM activities – assisted filing – orienteering for finding – wiki for thinking 08.06.2009 Semantic Desktop for PIM 34
  33. 33. Outlook www.flickr.com/photos/wonderferret/1447024668 08.06.2009 Semantic Desktop for PIM 35
  34. 34. Open Research threads • Automatic model generation Files E-Mails Contacts Management Documents Inbox Claudia Stern Papers Todo Dirk Hagemann CID CID slides Projects SAP Klaus Nord CID CID-proj Claudia Research Karlsruhe Dirk Karlsruhe • Exchange within social groups • Integration with the Semantic Web 08.06.2009 Semantic Desktop for PIM 36
  35. 35. Summary create a software architecture model for the Semantic Desktop and evaluate how it can improve Personal Information Management • Ontology, services, and applications for PIM • Deployment in NEPOMUK and KDE 4.0 • End-user studies showed usefulness Topic Project Document Management CID CID slides Claudia Karlsruhe Person Dirk Location 08.06.2009 Semantic Desktop for PIM 37
  36. 36. </SemanticDesktop> </rdf:RDF> Thanks to Andreas Dengel EU IST funding NEPOMUK Man Luo Anja Jentzsch Florian Sentry Mittag Mark Siebert Ansgar Bernardi Francesco Lelli Martin Klinkigt Antoni Mylka Frank Osterfeld Mehdi Jazayeri Benjamin Adrian Georg Paul Thomann Michael Sintek BMB+F funding EPOS God and Jesus Moritz Plößl BMUKK Studien- Gunnar Gromgull Grimnes who rocks as hard as 300 spartans Pierre Smits abschlussstipendium Günther Noak Ralf Biedert Christine und Wolfgang Heiko Maus Rósa Gudjónsdóttir Sauermann Ingrid Brunner-Sauermann Sebastian Trüg Daniel Bahls Jeen Broekstra Stefan Decker Daniel Burkhart Kicki Groth Sven Schwarz Danish Nadeem Kinga Schumacher Thomas Roth-Berghofer DFKI GmbH Lars Zapf Tim Berners-Lee Dominik Heimwege Heim Ludger Van Elst Emmanuel Gasne Malte Kiesel

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