DataCite Annual Conference, August 25, Nancy, France

1

Expanding the content categories
at JaLC
Hideaki Takeda
Chair, Joint Steering Committee
Japan Link Center (JaLC)

http://japanlinkcenter.org/
Contributor: Ritsuko Nakajima, Takafumi Kato,Japan Science and Technology Agency (JST)2Japan Link Center (JaLC)• Founded in March 2012
• Aimed to register DOIs for academic contents produced

in Japan or in Japanese, to circulate information in Japan andoverseas.
• Controlled by four national organizations: Japan Science and Technology Agency (JST)(has 915 associate members) National Institute for Materials Science (NIMS) National Institute of Informatics (NII)(will have about 1,000 associate members) National Diet Library (NDL)• Operated by JST• Membership system
19 Regular members(Academic societies, Publishers, University libraries, etc)

• External coordination
JaLC is a member of CrossRef and DataCite(Mar. 2014)

3Registration of DOI via JaLC
IDF
LHS
DOI & DOI metadata
DOI & CrossRef metadata

DOI & DataCite metadata

Some Journal
Articles (requestedby Members)

IDF RAs
Research data

JaLC Metadata DB
DOI & JaLC Metadata

JaLC Member

JaLC Assoc. M.

JaLC Member
JaLC Member

JaLC Assoc. M.

JaLC Member

JaLC Assoc. M.

JaLC Assoc. M.

JaLCMembers

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Number of DOIs
JaLC DOI
940,000
840,000

CrossRef DOI (via JaLC)
1,590,000
1,575,000
1,560,000

740,000

1,545,000

640,000

1,530,000
1,515,000

540,000
440,000
340,000

1,500,000
1,485,000
1,470,000
1,455,000
1,440,000
2012,12 2013,32013,6

2013,9 2013,12 2014,32014,6※ J-STAGE Article：90,000+ 200,000 (JaLC DOI)
+20,000 (CrossRef DOI)
(Collective registration for the articles which had not been registered DOI)

※National Diet Libraryʼs Doctoral Thesis：140,000Total amount of DOIs: 2,427,391 (at the end of July 2014)

5Upcoming features
JaLC will release new features in December 2014.
a. More content categories
Expanded to research data and books etc. besides journal articles.
JaLC will collaborate with DataCite in registering DOI for research data.

b. Edition information
Variation: publication version, author’s version, ...
Version : 1.0, 2.1, ...
Format: XML, PDF, C

c. Multiple resolution
Identical contents are resolved into original sites, archive sites anddistributers' sites.

d. Researcher identifiers
ORCID, KAKEN ID, NDL authority ID are included in JaLC's deposit schema.
Ex. of application: Send pairs of ORCID and DOI to ORCID system so that
corresponding articles will be suggested as research results on ORCID service.

e. Linked data
Metadata are provided as linked data.

6

Content categories
Category
Journal articles
Journal articles

Dec.2012 -University bulletins

Sep.2014 -Conference proceedings

Mar.2012 -Books
Books

Jan.2015 -Doctoral theses

Mar.2014 -Reports
Technical reports

Jan.2015 -Governmental reports

Jan.2015 -Research data

Jan.2015 -e-learning resources

Jan.2015 -7These properties are unified
among the types

Metadata

Basic metadata:
DOI, URL, title, author information, affiliation, researcher id,
publication date, publisher, edition, related contents, funder
NoContents type Additional Metadata

External Deposit

1

Journal Article

journal name, ISSN, volume, number,title, page, etc.

CrossRef

2

Book

series title, chapter , ISBN, etc.

CrossRef

3

Research Data size, geolocation, rights, signature, etc. DataCite

4

E-learning

Learning Resource type, rights, etc.

5Other(Basic metadata only)

JaLC
MemberJaLC Article
Metadata
JaLC Data
Metadata

TranslationJaLC Metadata DB

PlannedCrossRef
ArticleMetadata
DataCite
ArticleMetadata

8Metadata (common)

9XML（RDF)
attribute
No
12
34
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

Name

mandatory○○xml
rdf:RDF

rdf:Description
prism:doi
dc:title
dc:creator
foaf:Person
foaf:namefoaf:familyName
foaf:givenName
dc:publisher
dc:dateprism:volume
prism:startingPage
prism:endingPage
dcterms:isPartOf
owl:Classprism:issn
owl:sameAs
dc:title

namevalue

xmlns:rdf
xmlns:dc
xmlns:owl
xmlns:foaf
xmlns:prism
rdf:about

http://www.w3.org/1999/02/22-rdf-syntax-ns#"http://purl.org/dc/elements/1.1/"
http://www.w3.org/2002/07/owl#"http://xmlns.com/foaf/0.1/""http://prismstandard.org/namespaces/basic/2.0/""http://dx.doi.org/"＋"DOI"○○

rdf:resource"http://www.w3.org/2001/XMLSchema#date"○

rdf:about"Journal"○○○

There's a possibility that this XML will change.

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Experiment Project
to register DOIs for Research Data
• Goal− Establish operation flows to register DOIs for research data andhave stable operation• Objectives− Set policies in registering DOIs for research data
− Establish operation flows to register DOIs for research data with thenext version of JaLC system. Ensure that by performing registration
tests

11Project Organization
SteeringCommittee
ProjectManager

ReportSub
Manager
Technicaladvisory

Support ->Participant<-Support

Participant

Secretariat

ParticipantParticipants are supposed to be research institutes, universities, etc.
and chosen by public invitation.

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Examples of subjects to be examined• Flow of operations− In case a regular member deposits only its data
− In case a regular member deposits their data and the associatemembers’ data together• Persistent access− Can time-limited projects participate? Who will ensure thepersistency of the data?
(ex.)
 The representative institute takes over all of the data
 Registering DOIs only for data managed by real organizations among
the members of the project• Granularity of registration

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Examples of subjects to be examined (cont’d)• Landing page
− Metadata description page/file/C− For open/closed data
• Other operations− Adding data after registration of DOI− Registering DOI for a large amount of data
• Application− Citing DOIs for research data− Developing other applications

14Schedule
2014
AUG

2015
SEP

OCT

NOV

DECJAN

FEB

MAR

APR

MAYJUNJUL

AUG

Public invitation
for the project
Design of experiments
Test of DOI Registration

DOI registration

Interim report
MeetingFinal report

SEP

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Multiple resolution

Member A

Member B<Deposit>
DOI, URL(A), other metadata andmultiple resolution priority number [a]<Deposit>
DOI, URL(B), other metadata andmultiple resolution priority number [b]JaLC
When JaLC detects thesame DOIs deposited
with multiple resolution
priority number bydifferent members, themultiple resolutionfunction works.
JaLC multiple resolution works
only among JaLC DOIs.
CrossRef’s DOIs are out ofcoverage.

16Summary• JaLC is established to enhance scientific communicationwith DOI• Ideally support all activities by researchers• JaLC started service for journal articles, then will extend it
for books, e-learning, and data.
• Need of knowledge and experience about dataregistration• Start the experiment in Fall.
• Need for collaboration and coordination with DataCite

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Thank you!
http://japanlinkcenter.org/