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Semantic Search for Media Portals

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A presentation I have given several times illustrating to non-technical people how the Internet can change information access in media portals. It focusses on the different ways of information …

A presentation I have given several times illustrating to non-technical people how the Internet can change information access in media portals. It focusses on the different ways of information organisation and architecture that are possible in digital media because of taking away physical constraints.

Published in: Technology, Education

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  • 1. Semantische Suche in Medienportalen Dr. Sebastian Schaffert Salzburg Research / Salzburg NewMediaLab sebastian.schaffert@salzburgresearch.at 1
  • 2. Introduction 2
  • 3. Sebastian Schaffert • Doktorat in Informatik, Uni München • Senior Researcher bei Salzburg Research • Forschungsgebiete Social Software, Web 2.0 und Semantic Web • Projektkoordinator des EU-Projekts „KiWi - Knowledge in a Wiki“ 3
  • 4. Salzburg Research • Forschungsgesellschaft des Landes Salzburg • Fokus auf interdiszipliäre IT-Forschung • Wissens- und Medienmanagement • Mobilität und ortsbasierte Dienste • Bildung und Medien • E-Culture • Netzwerktechnologien 4
  • 5. Salzburg NewMediaLab • Österreichisches Kompetenzzentrum zu Neuen Medien • „public private partnership“-Modell mit öffentlicher Kofinanzierung • Forschung in den Bereichen „Multimediatechnologien“, „Social Software“ und „Semantischen Systemen“ 5
  • 6. Information Organisation 6
  • 7. video by M. Wesch/YouTube 7
  • 8. classical paper-based information organisation is limited by physical constraints and thus follows a single hierarchy 8
  • 9. Example: Dewey Decimal System • developed by US librarian Melvil Dewey • arranging books in a numerically encoded hierarchical order by subject 9
  • 10. Figure from Politt & Tinker (2003) 10
  • 11. but what if your world view does not match Dewey‘s 1930s world view? 11
  • 12. 12
  • 13. 13
  • 14. This also holds for newspapers! photo by birdfarm/Flickr 14
  • 15. 15
  • 16. Computers offer to organise information along multiple dimensions, detached from physical constraints http://universe.daylife.com/ 16
  • 17. Computers offer to organise information along multiple dimensions, detached from physical constraints http://universe.daylife.com/ 16
  • 18. Computers offer to organise information along multiple dimensions, detached from physical constraints http://universe.daylife.com/ 16
  • 19. Different Hierarchies 17
  • 20. Example: Holiday Photos 18
  • 21. you could organise as ... Italy Photos 2008 2008 19
  • 22. or as ... 2008 Italy Photos 2008 20
  • 23. or even as ... Italy 2008 Photos 2008 21
  • 24. or maybe as ? Italy Photos 2008 2008 22
  • 25. all this makes sense ... ... to someone 23
  • 26. but: how many dimensions are there? photo by Alex Kessler/Flickr 24
  • 27. 5! (exactly) 25
  • 28. Location Alphabet Time Category Richard Saul Wurman Hierarchy Information Designer 26
  • 29. Location ... http://tagit.salzburgresearch.at 27
  • 30. Alphabet ... http://www.linkedin.com 28
  • 31. Time ... http://simile.mit.edu/timeline/ 29
  • 32. Category ... 30
  • 33. Hierarchy ... 31
  • 34. What does this mean for News Portals? 32
  • 35. most existing news portals follow the classical, resort oriented navigation like in paper-based news - physical limitation lifted to virtual space 33
  • 36. 34
  • 37. 35
  • 38. • resort = category (sort of ...) • but: not necessarily topic! 36
  • 39. Article on soccer EM could be in ... • sports • economy • politics • culture • Salzburg 37
  • 40. LATCH in Online News 38
  • 41. News by Location ... http://atlas.tagesschau.de 39
  • 42. News by Alphabet ... 40
  • 43. News by Time ... 41
  • 44. News by Category ... sorry, no good example (except resort-based) :-( 42
  • 45. News by Category ... but there is: http://www.iptc.org 43
  • 46. News by Category ... so why not offer it for navigation? 44
  • 47. News by Hierarchy ... 45
  • 48. Challenges & Opportunities 46
  • 49. from big ambitions to realisable goal 47
  • 50. Challenges ... 1. user centred design means „intuitiveness“ of interface 48
  • 51. but intuitiveness only exists when facing a bear ... from: user „randy_harris“ at Flickr 49
  • 52. User Interface ... otherwise, it is rather patterns and idioms we already know ... bread crumps tabs dropdown selection home link tag clouds 50
  • 53. User Interface ... • when visiting an online news paper, people almost expect a classical navigation structure • new idioms need to be introduced very carefully (e.g. blog style, ...) • more complex structures need to be hidden (in salzburg.com: only in search, not in navigation) 51
  • 54. Managing Topics ... 2. assuming that editors become „knowledge engineers“ that properly maintain complex knowledge models was unrealistic 52
  • 55. Managing Topics ... • need to do as much automatic processing as possible (but this is limited) • possibility to involve users! 53
  • 56. Tagging 54
  • 57. Linking 55
  • 58. Structuring from: user „liber“ at Flickr 56
  • 59. Integration ... 3. integration with other kinds of content beyond news 57
  • 60. from: „Wikis in plain English“ 58
  • 61. from: „Blogs in plain English“ 59
  • 62. 60
  • 63. Future Content Platforms 61
  • 64. Project Deliverables ... • Semantic Search (completed 2008): http://search.salzburg.com • KiWi (platform developed by EU Project): • Content Integration Framework (2009): integration and connection of different kinds of content • TagIT (2009): geolocation & social tagging of news and places 62
  • 65. search.salzburg.com keyword-based interface, refine search results by map, category, time, location 63
  • 66. DEMO! http://search.salzburg.com 64
  • 67. Technology (Productive) ... • UI: Ruby on Rails, AJAX • Logic: mostly PL/SQL • DB: PostgreSQL • XML feed of news articles • optimized full-text index, time index, location index, resort • 700.000 articles 65
  • 68. Data Import ... Articles Geolocation (XML) (named entities + geo field) Database Fulltext Index (PostgreSQL) (PostgreSQL built-in) 66
  • 69. KiWi - Knowledge in a Wiki • EU project funded under 7th Framework Programme • 7 partners, 3.8 Million Euro • develops a platform for „Semantic Social Software“ • builds on the „Wiki Principles“ http://www.kiwi-project.eu 67
  • 70. KiWi - Core Components • content + semantic metadata (finished) • transactions & versioning (mostly finished) • semantic tagging (mostly finished) • facetted search (in progress) • social networking (in progress) • personalisation (in progress) • reasoning (in progress) http://www.kiwi-project.eu 68
  • 71. KiWi - Applications • KiWi Wiki (finished) • TagIT (mostly finished) • Dashboard (in progress) • Blog (planned) important: content shared between applications! http://www.kiwi-project.eu 69
  • 72. Demo! http://showcase.kiwi-project.eu 70
  • 73. Conclusion 71
  • 74. Where do we go? • reimplementation on top of the KiWi platform • integration of community features (social networking, sharing, ...) • integration of different kinds of content (news, wiki, blogs, photos, ...) • backed by advanced Semantic Web technology (reasoning, information extraction) 72
  • 75. Book tips ... • Richard Saul Wurman: Information Anxiety 2 • David Weinberger: Everything is Miscellaneous • Clay Shirky: Here Comes Everybody - the Power of Organising without Organisatons 73
  • 76. SNML Books (German) Nachrichten 2.0: Eine Analyse internationaler Nachrichtenangebote im Internet ISBN: 978-3-8370-5731-7 Erfolgreicher Aufbau von Online- Communitys: Konzepte, Szenarien und Handlungsempfehlungen (April 2009) ISBN: 978-3-902448-13-2 74
  • 77. Thanks! Dr. Sebastian Schaffert | sebastian.schaffert@salzburgresearch.at | http://www.salzburgresearch.at | http://www.newmedialab.at | http://www.kiwi-project.eu (KiWi Website) | http://planet.kiwi-project.eu (KiWi blog) 75