Linked Data as a Library

Data PlatformA Proof of Concept from National Technical Library

of Czech Republic

ELAG 2010 Helsinki

June 10th 2010

Jindřich MynarzNational Technical Library

Overview

Library data

Linked data

Converting library data to linked data

Distribution

Benefits of linked library data

Library data are not very readable

Sourc

e: N

atio

nal L

ibra

ry o

f the C

zech R

epublic

card

cata

logue

Catalog card - record

MARC RecordCAPTCHA - Completely Automated Public Turing test to tell

Cataloguers and Humans Apart

Library data in XML are still

not very readable

Library-specific access protocols

(Z39.50, OAI-PMH)

http

://ww

w.flic

kr.c

om

/photo

s/lw

r/14

400

411

9/

http

://ww

w.flic

kr.c

om

/ph

oto

s/d

ullh

un

k/3

03

50

36

77

Linked data

Linked data principles

Thou shalt:

Use URIs as names for things.

Use HTTP URIs so that people can look up those names.

When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL).

Include links to other URIs. so that they can discover more things.

http

://ww

w.flic

kr.c

om

/photo

s/d

ullh

unk/3

5250

135

47

Data conversion

Choosing datasets

Choosing description

Extraction

Linking

Distribution

Choosing description

Domain ontologies

Established, popular (Dublin Core, SKOS)

Falcons concept search

http

://blis

sfu

llydom

estic

.com

/2010/s

prin

g-c

lean-y

our-b

log-c

om

ments

Extraction - matching dirty data

Library data already contain links

Linking

Links to resources identified

by code values

Links to classification notations

Links to persons

Links to geographical entities

and institutions

„Outsourcing“ authorities

DBPedia

VIAF

Geonames

http

://the

se

cre

tmirro

r.co

m/lin

ke

d-d

ata

/wh

y-y

ou

-should

-support-lin

ked

-da

ta

Crawling data

Distribution

Lightweight API

Single interface to the datasets

Open bibliographic data

http

://ww

w.flic

kr.c

om

/photo

s/v

irtua

lsug

ar/3

16200

555

Open licences

http

://ww

w.p

an

ora

mio

.com

/photo

/20

26840

9

National Technical Library's

library linked data prototype

Incomplete

Parallel coexistence with the original way of data distribution

Benefits of linked library data

Readable

Sharable

Linkable

Distributable

Integrable

?-able

Changes

Questions!

Jindřich Mynarz

www.techlib.cz/en

jindrich.mynarz@techlib.cz

@jindrichmynarz

http

://ww

w.flic

kr.c

om

/photo

s/th

ere

dpro

ject/3

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015

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