Dr. David Wood and Ms. Bernadette Hyland delivered this jargon-free presentation at the National Health Datapalooza in Washington DC on how and why integrating data from the Web matters and why a Linked Data approach is relevant.

1. David Wood, Bernadette Hyland
{david, bhyland}@3RoundStones.com
@3RoundStones
Washington DC, 4 June 2013
Linked Data:
Structured Data on the Web
(the jargon-free version)
Health Datapalooza

2. 40% annual growth in data produced
5% annual growth in IT spending
1.8 ZB
35 ZB
2012 2020
Digital Information Produced
294B
1 Trillion
2 Trillion
3 Trillion
4 Trillion
5 Trillion
Online Ad
Impressions
Emails Tweets
Daily (2013)
230M
4.8T

3. 314 million Total population
90 million software end users
55 million
users of spreadsheets/
databases
13 million “end user programmers”
3 million professional programmers
The United States
in 2012

4. “Most programs today are written not by professional
software developers, but by people with expertise in
other domains working towards goals for which they
need computational support.”

5. Readable by
people
Data in the Physical World

6. Machine readable
Readable
by
motivated
people

8. Someone else (we don’t know)
Schemas/Vocabularies

12. johnson@example.com
Which Copy?

14. Today’s Data
on the Web

15. Lack of Context

16. Required Context

17. my data
collector
collected by
measurement
Michael
first name
Hausenblaslast name
Person
a
a measurement
2011-01-01
date
0
value
units of measure
degrees
Centigrade
...
Galway Airport
collected at

18. Linked Data
on the Web
my data
collector
collected by
measurement
Michael
first name
Hausenblaslast name
Person
a
a measurement
2011-01-01
date
0
value
units of measure
degrees
Centigrade
...
Galway Airport
collected at
or

19. Summary of Problems
• How can we archive our data in an open
manner?
• How can we record data context?
• How can we record data provenance?
• How can we know whether our data is up
to date?
• How can we share our data with others?

20. Linked Data is
a way to
answer these
questions

21. Linked Data
• Provides an international standard
mechanism to put reusable data on the
World Wide Web
• Provides a single data model with
multiple formats
• Provides context, provenance and access
• Allows for both human and machine reuse

22. Linked Data Principles
• Name data files and elements with URIs
• Use HTTP URIs so people can resolve them
on the Web
• Provide useful information at those URIs, using
the standards (RDF, SPARQL)
• Include links to other URIs so people can
discover more information.

25. NOAA EPA AirNow EPA Sunwise
Wikipedia NLM

27. Credits
Population density image
(public domain)
http://en.wikipedia.org/wiki/File:USA-2000-population-density.gif
2012 population estimate
(CC-BY-SA)
http://en.wikipedia.org/wiki/Demographics_of_the_United_States
Programmer estimates
Scaffidi, C.; Shaw, M.; Myers, Brad, "Estimating the numbers of end users and end user
programmers,"Visual Languages and Human-Centric Computing, 2005 IEEE
Symposium on , vol., no., pp.207,214, 20-24 Sept. 2005
doi: 10.1109/VLHCC.2005.34
Retrieved 27 May 2013 from http://ieeexplore.ieee.org/stamp/stamp.jsp?
tp=&arnumber=1509505&isnumber=32326End user programmer quote
Andrew J. Ko, Robin Abraham, Laura Beckwith,Alan Blackwell, Margaret Burnett,
Martin Erwig, Chris Scaffidi, Joseph Lawrance, Henry Lieberman, Brad Myers, Mary
Beth Rosson, Gregg Rothermel, Mary Shaw, and Susan Wiedenbeck. 2011.The state
of the art in end-user software engineering.ACM Comput. Surv. 43, 3,Article 21
(April 2011), 44 pages. DOI=10.1145/1922649.1922658 http://doi.acm.org/
10.1145/1922649.1922658. Retrieved 27 May 2013 from http://
faculty.washington.edu/ajko/papers/Ko2011EndUserSoftwareEngineering.pdf.pdf
Bag of chips idea
Open, Linked Data for a Global Community,Tim Berners-Lee,W3C, Gov2.0 Expo,
Washington DC, May 25-27 2010. https://www.youtube.com/watch?
v=1E7lV5_0M38
Social media icons
Courtesy of http://designreviver.com/freebies/6-free-new-social-icons-digg-twitter-
stumble-rss-delicious-reddit/
Corporate and product logos, CAMC credit card image and book covers © their respective owners and used under
Fair Use for educational purposes
Corporate and product logos, CAMC credit card image and book covers © their respective owners and used under
Fair Use for educational purposes

28. This work is Copyright © 2011 3 Round Stones Inc.
It is licensed under the Creative Commons Attribution 3.0 Unported License
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29. David Wood, Bernadette Hyland
{david, bhyland}@3RoundStones.com
@3RoundStones
Washington DC, 4 June 2013
Linked Data:
Structured Data on the Web
(the jargon-free version)
Health Datapalooza