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Dublin Core Conference, 12 October 2004, Shanghai, Chinap. 1
Making Metadata go away
Hiding everything
but the benefits Erik Duval
Dept. ComputerwetenschappenK.U.Leuven
http://www.cs.kuleuven.ac.be/~erikd
p. 2 Dublin Core Conference, 12 October 2004, Shanghai, China
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p. 3 Dublin Core Conference, 12 October 2004, Shanghai, China
In a nutshell…
• Great to have all these metadata – DC, LOM, MPEG, …
• We should have many more– Not locked up, and different kinds…
• We should see many less– And make them work better for us…
• We can do this now!– Does not require technology
breakthrough!
p. 4 Dublin Core Conference, 12 October 2004, Shanghai, China
“The perfect is the enemy of the good”
--French proverb
Especially when perfecting the irrelevant!
p. 5 Dublin Core Conference, 12 October 2004, Shanghai, China
? Is this making life easier ?
p. 6 Dublin Core Conference, 12 October 2004, Shanghai, China
Articles of faith
•Standards are not for end users.
•Nor are metadata.•Nor was HTML.
(Or URL for that matter!)
p. 7 Dublin Core Conference, 12 October 2004, Shanghai, China
Which do you prefer?
p. 8 Dublin Core Conference, 12 October 2004, Shanghai, China
Tipping Point
Inflection “tipping”
point
invention adoption
pioneers
everyone
p. 9 Dublin Core Conference, 12 October 2004, Shanghai, China
You are not representative
People herecare a lot about features
People here wantreliability, convenience“no fuss or bother”
http://www.cs.berkeley.edu/~jfc/cs160/SP03/
Chrossing the chasm
p. 10 Dublin Core Conference, 12 October 2004, Shanghai, China
How do we make this work?
1. “good enough” metadata can be generated automatically
– Not rocket science, but context!
2. Communities will add manual metadata
– They will be glad to!
3. Multiple metadata per object is OK!
– Especially subjective!
p. 11 Dublin Core Conference, 12 October 2004, Shanghai, China
Librarian metadata doesn’t scale!
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
APR - JU
N 199
7
JUL
- SEP 1
997
OCT - DEC 1
997
JAN -
MAR 1
998
APR - JU
N 199
8
JUL
- SEP 1
998
OCT - DEC 1
998
JAN -
MAR 1
999
APR - JU
N 199
9
JUL
- SEP 1
999
OCT - DEC 1
999
JAN -
MAR 2
000
APR - JU
N 200
0
JUL
- SEP 2
000
OCT - DEC 2
000
JAN -
MAR 2
001
APR - JU
N 200
1
JUL
- SEP 2
001
OCT - DEC 2
001
JAN -
MAR 2
002
APR - JU
N 200
2
JUL
- SEP 2
002
OCT - DEC 2
002
JAN -
MAR 2
003
APR - JU
N 200
3
JUL
- SEP 2
003
OCT- DEC 2
003
JAN -
MAR 2
004
p. 12 Dublin Core Conference, 12 October 2004, Shanghai, China
Electronic forms must die !
Ariadne, Merlot, …
p. 13 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 1: Document itself
• Full text indexing– Google, …– Search Inside the Book®
• Integration in authoring tool– Microsoft, Macromedia, …– Includes author, date, …
• HTML scraping• Language: 20 words…
p. 14 Dublin Core Conference, 12 October 2004, Shanghai, China
Email: bloomba, gmail, …
p. 15 Dublin Core Conference, 12 October 2004, Shanghai, China
Desktop: Enfish, copernic
p. 16 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 2: context
• Ariadne/Blackboard– User– Course
admin audience, language, subject, difficulty, …
– Local policy
p. 17 Dublin Core Conference, 12 October 2004, Shanghai, China
IndexingFormOCW.html
http://memling.cs.kuleuven.ac.be:8990/autoIndexingV0_2/IndexingFormOCW.html
p. 18 Dublin Core Conference, 12 October 2004, Shanghai, China
Contextualized search: Blinkx, A9, …
http://www.blinkx.com/
p. 19 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 3: related content
Language from aggregate
Learning time= ∑ learning times
~ object oriented inheritance (aggregation!)
p. 20 Dublin Core Conference, 12 October 2004, Shanghai, China
Thanks to Wayne Hodgins & Learnativity!
English
French
p. 21 Dublin Core Conference, 12 October 2004, Shanghai, China
Thanks to Wayne Hodgins & Learnativity!
3+2+4+2=113
2
4
2
p. 22 Dublin Core Conference, 12 October 2004, Shanghai, China
We can cluster too!
http
://ww
w.v
ivis
imo.c
om
/
Also:• Grokker• Kartoo• …
p. 23 Dublin Core Conference, 12 October 2004, Shanghai, China
Really…
grokker
p. 24 Dublin Core Conference, 12 October 2004, Shanghai, China
Research on Content Model• “Documents must die”• Intra-object interoperability• Dynamic content compositionKatrien Verbert,
Erik Duval, Towards a Global Architecture for Learning Objects: A Comparative Analysis of Learning Object Content Models, EdMedia2004
p. 25 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 4: Author• French• Physics• Free• university
• Dutch• Art history• Creative
commons• Academy
• French• Tennis• ©• Profession
al training
p. 26 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 5: Actual use
• TiVo– Simple– Part of
“workflow”
p. 27 Dublin Core Conference, 12 October 2004, Shanghai, China
“stuff I’ve seen”
http://research.microsoft.com/adapt/sis/
p. 28 Dublin Core Conference, 12 October 2004, Shanghai, China
Social recommending
p. 29 Dublin Core Conference, 12 October 2004, Shanghai, China
Social recommending/transparent profiling
http://www.audioscrobbler.com/ http://www.last.fm/
p. 30 Dublin Core Conference, 12 October 2004, Shanghai, China
Manual metadata: Photolibh
ttp
://w
ww
.cs.u
md
.ed
u/h
cil/p
hoto
lib
/
p. 31 Dublin Core Conference, 12 October 2004, Shanghai, China
Manual metadata: CDDB
10,000 submissions daily from 160 countries in 65 languages
http://www.gracenote.com/music/
(submit a change)
p. 32 Dublin Core Conference, 12 October 2004, Shanghai, China
Manual metadata: ESP
p. 33 Dublin Core Conference, 12 October 2004, Shanghai, China
This is only the start…
• Search– Or rather: find, not search!– Also: information visualization
• Empirical analysis– What do people do with metadata?– Can we make them do better?
• Measuring learning effect– Not just download
p. 34 Dublin Core Conference, 12 October 2004, Shanghai, China
In conclusion…
• Great to have all these metadata – DC, LOM, MPEG, …
• We should have many more– And some different kinds…
• We should see many less– And make them work better for us…
• We can do this now!– Does not require technology breakthrough!– Document, context, related, author, use, …
p. 35 Dublin Core Conference, 12 October 2004, Shanghai, China
Want more?
http://www.prolearn-project.org/ http://www.ariadne-eu.org/
p. 36 Dublin Core Conference, 12 October 2004, Shanghai, China
The End...
Thanks!
Questions?http://www.cs.kuleuven.ac.be/
~erikd