Download Nature Publishing Group & CrossRef Reference Linking

NPG Case Study:
CrossRef Implementation
Howard Ratner
CTO, Nature Publishing Group
February 2002
NPG Publishing
Program

NPG: Nature Journals Division (14)




NPG: Specialist Journals Division (28)


Nature Magazine (Weekly)
Nature Research Journals
Nature Reviews Journals
Oncogene, British Dental Journal,
Cancer Gene Therapy, etc.
NPG: Reference Division (3+)


Encyclopedia of Life Sciences
Encyclopedia of Astrophysics
Timeline

Winter 1998
Spring 2000

December 2000

January 2001

March 2001

July 2001

January 2002

Helps found CrossRef
Begins reference linking
programming/testing
Deposits/queries/posts/links
- nature only
Deposits/queries/posts/links
- all nature-branded journals
Queries/posts links
- EAA & ELS reference products
Launches Advance Online
Publication (AOP) Program
Deposits/queries/posts/links
- Specialist Journals
Reference Linking Program

The Deposit



The Query



Issue-based
AOP-based
Initial Posting
Updates
The User Experience
The Deposit
1
2a
3
Issue Post Date
(Weekly/Monthly)
Quark
Conversion
(supplier)
Production
Database
3B2
Extraction
(supplier)
L
R
Full Text
SGML
Transform
SGML
(Content
Explorer)
CrossRef
Deposit Batch
File
DOI Handle
I/U
O
Upload to
D
deposit.crossref.org M
eta
(Content Explorer)
da
ta
CrossRef
MDDB
2b
AOP Post Date
(Weekly)
DOI/URL pair for
immediate deposit
Transform
SGML
(Content
Explorer)
Handle
Deposit File
Upload to Handle
(Content Explorer)
NPG Full Text SGML
NPG Article
Metadata
CrossRef Deposit Record
The Query
Return for editing
2
1a
SGML
Transform to
HTML
(Content
Explorer)
HTML Text
Preview HTML &
References with
links
(Content
Explorer)
3
Approve &
Post to web
site
HTML
Server-side include
1b
SGML Reference
Section
Extracted in
Database
(Content
Explorer)
HTML
Reference
Section
5
Resolve DOIs
(Content
Explorer)
HTML
Reference
Section
Every 4 weeks
new query
4
Query
Query
NPG
Refmaster
CrossRef
MDDB
Insert Found DOIs
Finds References
Queries CrossRef
& Inserts found DOIs
into NPG Refmaster
Builds Reference
Sections
from DOIs in
NPG Refmaster
The User Experience
Article
with Abstract
Article
w/o abstract
Articles referred
& linked in same issue!
Statistics (22.02.02)




61,536 unique DOI Article links found
out of total 252,474 unique references
(24% match rate)
87,179 total DOI links on site
31 journals deposited in CR MDDB
25,567 records deposited in CR MDDB
Experiences

Problems linking from NPG products to
Nature Research titles



AOP DOI registration was too slow via CrossRef




Created end-run process to Handle Server
Changing NPG DOI syntax from completely dumb
to internally logical


NPG journal short titles differed from Medline syntax used by CrossRef
Created pre-query filter. Transforms NPG short titles to Medline syntax for
query – problem solved!
10.1038/80132  10.1038/ng732
Use DOI for all inbound links to NPG products!
Document Delivery Revenue is increasing
Added DOI Search to nature.com
Plans



Nature Science Update articles to be
deposited and have ref queries built
Inbound links to ELS/EAA – testing now
Further automate process with Content
Management System (CMS)
Contact
Howard Ratner
CTO, Nature Publishing Group
[email protected]
www.nature.com