These are the Open Research Problems of Linked Data slides that we presented at the Consuming Linked Data tutorial at WWW2010 in Raleigh, NC on April 26, 2010

1. Linked
Data:
Open
Research
Problems
Consuming
Linked
Data
Tutorial
World
Wide
Web
Conference
2010

2. Exactly
1
year
ago
at
WWW2009
• BOF
on
a
Research
Agenda
for
Linked
Data
• hHp://esw.w3.org/SweoIG/TaskForces/
CommunityProjects/LinkingOpenData/
MadridBOF

3. 2009’s
Top
10
Linked
Data
Research
Issues
• Privacy
• Inter-­‐culturalizaVon
• CreaVng
Linked
Data
– CreaVng
and
maintaining
links
– Co-­‐reference
– Design
Methodology
– NLP
for
link
extracVon

4. 2009’s
Top
10
Linked
Data
Research
Issues
• UpdaVng
Linked
Data
– SynchronizaVon
Datasets
and
Links
– SPARUL
Federated
TransacVons
– History,
logs,
change
sets,
temporal
tracking
• EvaluaVon,
metrics
and
benchmarks
• Trust
and
Provenance
• Publish
Linked
Data
– Licensing
– Legal
and
social
implicaVons

5. 2009’s
Top
10
Linked
Data
Research
Issues
• UI
– User
Interface/InteracVon
and
Usability
– Visualizing
Linked
Data
– Natural
Language
Interfaces
• Internet
of
Things
(sensors)
• Social
and
Economic
Impact
• Web
Scale
Data
Management
– Indexing
– crawling

6. What
are
the
hot
topics
of
2010
In
Our
Opinion

7. Hot
Topics
• Interlinking
Algorithms
• Provenance
and
Trust
• Dataset
Dynamics
• UI
• Distributed
Query
• EvaluaVon
– “You
want
a
good
thesis?
IR
is
based
on
precision
and
recall.
The
minute
you
add
semanVcs,
it
is
a
meaningless
feature.
Logic
is
based
on
soundness
and
completeness.
We
don’t
want
soundness
and
completeness.
We
want
a
few
good
answers
quickly.”
–
Jim
Hendler
at
WWW2009
during
the
LOD
gathering
Thanks
Michael
Hausenblas

8. Linked
Data
TriplificaVon
Challenge
• Open
Track
– Novel
data
sets
that
are
published
as
part
of
the
Web
of
Data
demonstraVng
potenVal
benefit
of
use
within
applicaVons
– Novel
generic
mechanisms,
approaches
and
technologies
to
publish
Linked
Data
– ApplicaVons
showcasing
the
benefits
of
Linked
data
to
end-­‐users

9. Linked
Data
TriplificaVon
Challenge
• Open
Government
Track
– Build
web
applicaVon
that
makes
use
of
open
government
datasets
(i.e.
environmental,
cadastral,
geographic,
traffic,
historical,
public
speeches,
elecVon,
corporate
spending,
etc)
– At
least
one
source
must
be
part
of
Linked
Open
Data.
Submission
due
MAY
18
hHp://www.triplify.org/Challenge/2010

10. It’s
lunch
Vme!
• You
learned
what
Linked
Data
is
• You
realized
that
there
is
a
lot
of
data
out
on
the
web
• You
got
excited
about
Linked
Data
• You
learned
about
the
different
ways
of
consuming
linked
data
• You
realized
that
there
is
sVll
work
to
be
done
• You
want
to
create
a
Linked
Data
applicaVon
(and
parVcipate
in
the
TriplificaVon
Challenge)

11. Thank
You
www.consuminglinkeddata.org
@olakarVg
@juansequeda
Linked
Data
Gathering
101
Lounge
444
S.
Blount
Street
Tuesday
aAer
LDOW