3. Wednesday, September 28, 11
For 95% of the history of homo sapiens sapiens (roughly 200K years), every human on the
planet lived in hunter-gatherer tribes of 25-100 people. We shared only with our group.
(Photo: John Batman signing treaty with Wurundjeri people, 1835, Meri Creek, Victoria,
Australia)
4. Wednesday, September 28, 11
On the Web, we share a lot with everyone. We are still figuring out whether and how much
we want to share (e.g. Facebook, G+).
But why do we share at all? Especially with strangers?
5. “more anterior sectors of the prefrontal
cortex are distinctively recruited when
altruistic choices prevail over selfish
material interests”
- Jorge Moll et al
Wednesday, September 28, 11
In their paper “Human fronto–mesolimbic networks guide decisions about charitable
donation”, Moll et al showed that the subgenual cortex region was activated as it would be
for food or sex. See http://www.pnas.org/content/103/42/15623.abstract
6. “For it is in giving that we receive.”
- Saint Francis of Assisi
Wednesday, September 28, 11
We’ve known the basics of this for a while.
7. Wednesday, September 28, 11
Culture also plays a strong role in our actions, too. We also share because, like LARPers, we
want to be someone’s hero.
Reduced size movie poster used for educational purposes under Fair Use provisions. See
http://www.darkonthemovie.com for the original (and a great movie).
8. Wednesday, September 28, 11
Of course, we don’t always want to share. Sometimes we want to keep things private, like
this liabilities spreadsheet. Spreadsheets are hard to share so they work well for private data.
9. Wednesday, September 28, 11
Some Linked Data is public. The Linked Open Data project consists of free and open data on
the Web that has been interlinked together. Volunteers interlinked data that was already
freely available.
May 2007
14. Wednesday, September 28, 11
September 2011: 295 datasets that meet the LOD Cloud criteria, consisting of over 31 billion
RDF triples and are interlinked by around 504 million links.
15. Wednesday, September 28, 11
Mallard Web page, BBC
Data comes from DBpedia, WWF and other Linked Data sites. BBC curates data on the Web to ensure data quality.
This is a fundamentally new business model for corporate data (and an indication of how far the EU/UK are in front of
the US in this nascent market).
16. Wednesday, September 28, 11
Each HTML page is paired with a machine-readable data representation.
17. We’ve Seen This Before
Wednesday, September 28, 11
Like HTML and RDF, credit cards have a human-readable side and a machine-readable side.
18. Wednesday, September 28, 11
Linked Data may be rapidly repurposed, displayed in different ways for a variety of uses.
19. Wednesday, September 28, 11
Will Linked Data cross Geoffrey Moore’s chasm? Some say that the Semantic Web will never
happen, that relational databases are too entrenched, that no large organizations will ever
invest in such an unproven technology.
20. YouTube HDTV
watch Better
watch videos
videos
Publish videos
Share videos
Rate videos
Discuss videos
Wednesday, September 28, 11
Steven Johnson’s excellent book “Where Good Ideas Come From” uses this example in the
first chapter to encourage readers to think about why some technologies go viral and others
don’t. YouTube was an overnight success in two years, compared to the twenty it tool HDTV
to take hold, in spite of significant governmental backing.
21. Linked Data RDBMS
Use data Use data
Publish data
Share data
Rate data
Discuss data
Wednesday, September 28, 11
There is a reason that the Linked Open Data project has grown rapidly in four years, from a
small volunteer effort to being used in production by governments and large companies.
22. Wednesday, September 28, 11
Some large commercial and government organizations would beg to differ...plus many more
universities, small and medium sized companies and Open Source projects.
Many of these are careful, slow-moving entities who simply needed to find real solutions to
real problems.
24. Coming Soon
Linked Data warehouses
Linked Data supply chains
Linked Data analytics
Wednesday, September 28, 11
25. Wednesday, September 28, 11
The first Linked Data warehouses are being built now. This one shows data from five data
sources being combined into a single, comprehensive view using only seven HTML+RDFa
templates. Current market size: 10B USD annually.
26. Wednesday, September 28, 11
Supply chains are international, heavily optimized and nearly real-time. How can they be
improved? The use of Linked Data principles could distribute aspects of price and volume
control while encouraging competition and stock transparency - at a fraction of current EDI
costs. Current market size: 205M USD annually (Web analytics), 6B USD annually (enterprise).
27. Wednesday, September 28, 11
What will the data analytics market look like if more companies mix public and private data
for mission-critical applications, or construct supply chains using Linked Data? Market size
for BI software: 16B USD annually.
28. Wednesday, September 28, 11
Data analytics in the commercial market requires knowledge of where data came from. A
standard for data provenance is on its way.
29. Further Reading
http://linkeddatabook.com/editions/1.0/
http://3roundstones.com/linking-enterprise-data/
http://www.linkeddatadeveloper.com/
Wednesday, September 28, 11
http://linkeddatabook.com/editions/1.0/
http://3roundstones.com/linking-enterprise-data/
http://www.linkeddatadeveloper.com/
30. Callimachus
Wednesday, September 28, 11
Check out the world’s Linked Data management system, Callimachus. Callimachus is Open Source Software
licensed under the Apache 2 license. We encourage you to check it out and to participate.
