dublin core conference, 12 october 2004, shanghai, china p. 1 making metadata go away hiding...
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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
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p. 2 Dublin Core Conference, 12 October 2004, Shanghai, China
creativecommons.orgAttribution. The licensor permits others
to copy, distribute, display, and perform the work. In return, licensees must give the original author credit.
Share Alike. The licensor permits others to distribute derivative works under a license identical to the one that governs the licensor's work.
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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!
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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!
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p. 5 Dublin Core Conference, 12 October 2004, Shanghai, China
? Is this making life easier ?
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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!)
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p. 7 Dublin Core Conference, 12 October 2004, Shanghai, China
Which do you prefer?
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p. 8 Dublin Core Conference, 12 October 2004, Shanghai, China
Tipping Point
Inflection “tipping”
point
invention adoption
pioneers
everyone
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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
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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!
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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
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p. 12 Dublin Core Conference, 12 October 2004, Shanghai, China
Electronic forms must die !
Ariadne, Merlot, …
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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…
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p. 14 Dublin Core Conference, 12 October 2004, Shanghai, China
Email: bloomba, gmail, …
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p. 15 Dublin Core Conference, 12 October 2004, Shanghai, China
Desktop: Enfish, copernic
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p. 16 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 2: context
• Ariadne/Blackboard– User– Course
admin audience, language, subject, difficulty, …
– Local policy
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p. 17 Dublin Core Conference, 12 October 2004, Shanghai, China
IndexingFormOCW.html
http://memling.cs.kuleuven.ac.be:8990/autoIndexingV0_2/IndexingFormOCW.html
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p. 18 Dublin Core Conference, 12 October 2004, Shanghai, China
Contextualized search: Blinkx, A9, …
http://www.blinkx.com/
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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!)
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p. 20 Dublin Core Conference, 12 October 2004, Shanghai, China
Thanks to Wayne Hodgins & Learnativity!
English
French
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p. 21 Dublin Core Conference, 12 October 2004, Shanghai, China
Thanks to Wayne Hodgins & Learnativity!
3+2+4+2=113
2
4
2
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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• …
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p. 23 Dublin Core Conference, 12 October 2004, Shanghai, China
Really…
grokker
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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
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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
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p. 26 Dublin Core Conference, 12 October 2004, Shanghai, China
Source 5: Actual use
• TiVo– Simple– Part of
“workflow”
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p. 27 Dublin Core Conference, 12 October 2004, Shanghai, China
“stuff I’ve seen”
http://research.microsoft.com/adapt/sis/
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p. 28 Dublin Core Conference, 12 October 2004, Shanghai, China
Social recommending
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p. 29 Dublin Core Conference, 12 October 2004, Shanghai, China
Social recommending/transparent profiling
http://www.audioscrobbler.com/ http://www.last.fm/
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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
/
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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)
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p. 32 Dublin Core Conference, 12 October 2004, Shanghai, China
Manual metadata: ESP
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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
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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, …
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p. 35 Dublin Core Conference, 12 October 2004, Shanghai, China
Want more?
http://www.prolearn-project.org/ http://www.ariadne-eu.org/
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p. 36 Dublin Core Conference, 12 October 2004, Shanghai, China
The End...
Thanks!
Questions?http://www.cs.kuleuven.ac.be/
~erikd