semantic search for media portals

Semantische Suche in Medienportalen

Dr. Sebastian SchaffertSalzburg Research / Salzburg NewMediaLab

[email protected]

1

mailto:[email protected]


Introduction

2

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

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

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

Information Organisation

6

video by M. Wesch/YouTube

7

classical paper-based information organisation

is limited by physical constraints and thus

follows a single hierarchy

8

Example: Dewey Decimal System

• developed by US librarian Melvil Dewey

• arranging books in a numerically encoded hierarchical order by subject

9

Figure from Politt & Tinker (2003)

10

but what if your world view does not match Dewey‘s 1930s world view?

11

This also holds for newspapers!

photo by birdfarm/Flickr

14

Computers offer to organise information along multiple dimensions, detached from

physical constraints http://universe.daylife.com/

16

http://universe.daylife.com

http://universe.daylife.com

Different Hierarchies

17

Example: Holiday Photos

18

you could organise as ...

2008

Italy Photos 2008

19

or as ...

2008

ItalyPhotos 2008

20

or even as ...

2008

ItalyPhotos 2008

21

or maybe as ?

2008

Italy Photos2008

22

all this makes sense ...

... to someone

23

but: how many

dimensions are there?

photo by Alex Kessler/Flickr

24

5!(exactly)

25

LocationAlphabetTimeCategoryHierarchy Richard Saul Wurman

Information Designer

26

Location ...

http://tagit.salzburgresearch.at

27



Alphabet ...

http://www.linkedin.com

28



Time ...

http://simile.mit.edu/timeline/

29



Category ...

30

Hierarchy ...

31

What does this mean for News Portals?

32

most existing news portals follow the classical, resort oriented navigation like in

paper-based news - physical limitation lifted to virtual space

33

• resort = category (sort of ...)

• but: not necessarily topic!

36

• sports • economy• politics• culture• Salzburg

Article on soccer EM could be in ...

37

LATCH in Online News

38

News by Location ...

http://atlas.tagesschau.de

39



News by Alphabet ...

40

News by Time ...

41

sorry, no good example (except resort-based) :-(

News by Category ...

42


but there is:

http://www.iptc.org

43



so why not offer it for navigation?


44

News by Hierarchy ...

45

Challenges & Opportunities

46

from big ambitions to realisable goal

47

1. user centred design means „intuitiveness“ of interface

Challenges ...

48

but intuitiveness only exists when facing a bear ...

from: user „randy_harris“ at Flickr

49



otherwise, it is rather patterns and idioms we already know ...bread crumps

tag clouds

home link

dropdown selection

tabs

User Interface ...

50

• 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)

User Interface ...

51

2. assuming that editors become „knowledge engineers“ that properly maintain complex knowledge models was unrealistic

Managing Topics ...

52

• need to do as much automatic processing as possible (but this is limited)

• possibility to involve users!

Managing Topics ...

53

Tagging

54

Linking

55

Structuring

from: user „liber“ at Flickr

56



3. integration with other kinds of content beyond news

Integration ...

57

from: „Wikis in plain English“

58



from: „Blogs in plain English“

59



Future Content Platforms

61

• 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

Project Deliverables ...

62

http://search.salzburg.com


keyword-based interface, refine search results by

map, category, time, location

search.salzburg.com

63

DEMO!


64



• 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

Technology (Productive) ...

65

Data Import ...

Articles(XML)

Geolocation(named entities + geo field)

Fulltext Index(PostgreSQL built-in)

Database(PostgreSQL)

66

• 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“

KiWi - Knowledge in a Wiki

http://www.kiwi-project.eu

67

http://www.kiwi-project-eu





• 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)

KiWi - Core Components


68






• KiWi Wiki (finished)

• TagIT (mostly finished)

• Dashboard (in progress)

• Blog (planned)

important:

content shared between applications!

KiWi - Applications


69






Demo!

http://showcase.kiwi-project.eu

70



Conclusion

71

• 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)

Where do we go?

72

Book tips ...

• Richard Saul Wurman: Information Anxiety 2

• David Weinberger: Everything is Miscellaneous

• Clay Shirky: Here Comes Everybody - the Powerof Organising without Organisatons

73

SNML Books (German)

Nachrichten 2.0: Eine Analyse internationaler Nachrichtenangebote im InternetISBN: 978-3-8370-5731-7

Erfolgreicher Aufbau von Online-Communitys: Konzepte, Szenarien und Handlungsempfehlungen (April 2009)ISBN: 978-3-902448-13-2

74

Thanks!

Dr. Sebastian Schaffert

| [email protected]

| http://www.salzburgresearch.at| http://www.newmedialab.at

| http://www.kiwi-project.eu (KiWi Website)| http://planet.kiwi-project.eu (KiWi blog)

75



http://www.salzburgresearch.at

http://www.salzburgresearch.at

http://www.salzburg.com

http://www.salzburg.com



http://planet.kiwi-project.eu

http://planet.kiwi-project.eu