Presentation at the Upper Midwest Digital Collections Conference August 19, 2014

1. What
flavor
of
linked
data
is
best
for
your
collec6on?
Debra
Shapiro
UW-­‐Madison
SLIS

2. 2
…
using
other
methods.
…
useful
It
builds
upon
standard
Web
technologies
such
as
HTTP,
RDF
and
URIs,
but
rather
than
using
them
to
serve
web
pages
for
human
readers,
it
extends
them
to
share
informaHon
in
a
way
that
can
be
read
automaHcally
by
computers.
This
enables
data
from
different
sources
to
be
connected
and
queried.

3. Strawman
3

4. 4

5. 5

6. 6

7. 7

8. 8

9. 9

10. 10

11. 11

12. 12

13. 13

14. 14
make
your
stuff
available
on
the
Web
(whatever
format)
under
an
open
license
make
it
available
as
structured
data
(e.g.,
Excel
instead
of
image
scan
of
a
table
use
non-­‐proprietary
formats
(e.g.,
CSV
instead
of
Excel)
use
URIs
to
denote
things,
so
that
people
can
point
at
your
stuff
link
your
data
to
other
data
to
provide
context
h[p://5stardata.info/

15. 15

16. h[p://vimeo.com/36752317
What
is
europeana?
16

17. 17
• T-­‐Shirt
is
the
subject
(resource
you’re
describing)
• Color
is
the
property
(relaHonship)
• White
is
the
object
h[p://www.linkeddatatools.com/introducing-­‐rdf
RDF
triples,
HUH??

18. 18
Richard
Wallis,
for
OCLC,
2014

19. 19

20. To
summarize:
• Linked
data
is:
• Method
for
gecng
authoritaHve
descripHve
data
from
Libraries,
Archives
&
Museums
out
onto
the
web,
so
that
it
can
be
recombined
with
all
the
other
data
stuff
garbage
out
there
• Two
main
problems
brain
benders
for
LAMs
community:
• Linked
data
is
atomized
• Lined
data
is
dynamic
20

23. Just
two
flavors
today
1. RDFa/HTML
microdata
– Schema.org
–
OCLC’s
deployment
of
Schema.org
2. RDF/XML
– BIBFRAME
– Europeana
23

24. What
is
Schema.org?
“ html
tags,
that
webmasters
can
use
to
markup
their
pages
in
ways
recognized
by
major
search
providers
”
24

27. 27

28. 28

29. 29

30. 30

31. What
is
BIBFRAME?
“In
addiHon
to
being
a
replacement
for
MARC,
BIBFRAME
serves
as
a
general
model
for
expressing
and
connecHng
bibliographic
data.
A
major
focus
of
the
iniHaHve
will
be
to
determine
a
transiHon
path
for
the
MARC
21
formats
while
preserving
a
robust
data
exchange
that
has
supported
resource
sharing
and
cataloging
cost
savings
in
recent
decades.”
31

35. 35

36. 36

37. 37

38. 38

39. RDFa/HTML
vs.
RDF/XML
• Linked
data
in
HTML
way
to
enrich
the
html
of
web
pages
–
that
can
be
displaying
collecHon
informaHon
– Schema.org
originally
designed
for
e-­‐commerce;
vocabulary
being
extended
for
cultural
heritage
informaHon
– OCLC
doing
this
automaHcally
• RDF/XML
way
to
re-­‐encode
metadata
in
a
linked
data
consumeable
way
– BIBFRAME
is
an
experiment
to
convert
MARC
to
linked
data
in
RDF/XML
– ExisHng
MARC
data
can
be
batch
transformed
to
BIBFRAME;
Europeana
also
harvests
metadata
&
re-­‐
encodes
39

40. What
I
recommend
• Become
a
joiner
–
– Expose
metadata
– Big
iniHaHves
like
europeana
and
DPLA
can
ingest
all
kinds
of
metadata
–
including
MARC
– OCLC
is
shiling
everyone
to
the
WorldShare
Metadata
CollecHon
Manager
–
MARC,
MARCXML,
MODS,
DC,
all
kinds
of
data
from
publishers
and
Hathi
Trust
…
• Educate
yourself
–
see
bibliography
• Advocate
for
openness
40

41. What
I
believe
• Don’t
lose
sleep!
• Linked
data
is
for
discovery
• Content,
Data
&
ProperHes
-­‐
RULE
• <
>,
encoding,
screens
&
screens
of
RDF,
Do
not
ma[er
as
much
as
Quality
metadata
that
can
be
shared
• CONTEXT
Linked
data
is
HUGE
opportunity
for
librarians,
archivists,
collecHon
managers
41

42. Why
should
we
be
interested
in
doing
this
again?
• Get
LAMs
data
out
on
the
open
web?
• Make
Google
happy?
• Context?
• Openness
and
accessibility?
• Torture
librarians
&
collecHon
managers
….
"
All
of
the
above
42

43. 43
LODLAM
Training
Day
$75

44. Sites
cited
« W3C
h[p://www.w3.org/standards/semanHcweb/data
« Linkeddata.org
h[p://linkeddata.org/
« What
is
linked
data
video
h[p://vimeo.com/36752317
« Schema.org
h[p://schema.org
« European
Linked
Open
data
h[p://pro.europeana.eu/linked-­‐open-­‐data
44

45. Sites
cited
« BIBFRAME
h[p://bibframe.org/
« LoC
Linked
Data
Service
h[p://id.loc.gov/
«
Zepheira/LibHub
h[p://www.libhub.org/
« WorldCat
Linked
Data
Vocabularies
h[ps://www.oclc.org/developer/develop/linked-­‐data/worldcat-­‐
vocabulary.en.html
« Linked
data
demysHfied
h[p://goo.gl/vezuZw
«
LODLAM
h[p://lodlam.net/
«
Zepheira/LibHub
h[p://www.libhub.org/
45