Boot Camp: An Introduction to CrossRef (2011 CrossRef Workshops)
Our experience with linking and CrossRef Jerry Cowhig, Managing Director Terry Hulbert, Business...
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Transcript of Our experience with linking and CrossRef Jerry Cowhig, Managing Director Terry Hulbert, Business...
Our experience with linking and CrossRef
Jerry Cowhig, Managing DirectorTerry Hulbert, Business Development ManagerInstitute of Physics Publishing CrossRef annual meeting, Boston25 September [email protected] www.iop.org
Introduction Development of linking at IOP Other electronic developments at IOP CrossRef experiences Future linking developments
Linking at IOP 1996 - all 35 IOP journals on www 1997 - Hypercite
Refs link to INSPEC abs on IOP server Forward citations to IOP papers only
1998 - “Distributed publishing” Bilateral links AIP, APS, Springer etc
1999 - STACKS linking protocol 1999 - Axiom (secondary dbase)
INSPEC, later Compendex Links to full text
Linking at IOP (cont) 1999 - final bilaterals, AP… getting
close to total available coverage in physics
CrossRef 1999 Frankfurt STM: “Linking
good”! Sudden announcement, NY Times IOP not in original 12 disciples Online 1999: joined asap Still pursued bilaterals: Elsevier
NO!
CrossRef June 2000 CrossRef launched Elsevier No to all bilaterals From the start IOP has been a
member Elsevier was a major factor for IOP
History post 2000 Bilaterals, CrossRef & other links
co-exist SFX and Open URL ZBLSA DOI Forward citations (3rd party)
DOI We use and support because of
CrossRef IOP articles all have DOI since 2000 Now also published in print and
online Anyone incoming can use our DOIs Linking from IOP:
If no bilateral, check for DOI in INSPEC If DOI, we create URL to link directly If no luck, go to CrossRef
We are not a member of the IDF
Forward citations To see “who has cited this paper” IOP had this since 1997, Hypercite Now making bilaterals IPAP agreed Verbal agreements with APS, ADS Role for CrossRef
Other IOP electronic initiatives Free first 30 days and other free
accesses Archive back to 1874 Local loading
Now can include XML reference data Usage stats - COUNTER and more Vivisimo
Current state: Inbound linking (to get IOP text) Reference intra-linking in EJs -
backwards & forwards (Hypercite) Primary publishers - bilateral agreements,
CrossRef Or STACKS - no contract needed! Secondary publishers, aggregators,
gateways, etc. Local holdings, OPACs, etc. Help yourself!! Docdel PPV: Ingenta, Infotrieve (contract)
Current: Outbound (from IOP to get other text) Links to primary data, publishers Links to secondary services eg
ChemPort, MathSciNet Links to gateways: SwetsnetNavigator,
Information Quest, EBSCO Online Links to aggregators - Ingenta/CatchWord Links to document delivery vendors eg
Infotrieve SFX (OpenURL) enabled CrossRef
Our experience with CrossRef IOP is primary and secondary
Primary = 36 electronic journals Secondary = Axiom dbase (INSPEC
and Compendex) Enables links to many publishers
where no other arrangement exists Sweeps up 7% refs in electronic
journals >25% links from INSPEC (Axiom)
How much do we use CrossRef? IOP electronic journals 1968-
present 2.8m references 1.8m have at least one link (64%)
1.2m INSPEC or Compendex (66%) 816k to 2’ry eg Chemport, SWETS (45%) 608k bilateral to publisher (34%) 225k to IOP article (13%) 37k to preprint, eg arXiv, SPIRES (2%) 37k to CrossRef (2%) - half Elsevier
Total no of links 3m 1m references have no link (36%)
How much do we use CrossRef (2)? IOP electronic journals whole year
2001 179k references 126k have at least one link (70%)
77k INSPEC or Compendex (62%) 80k to 2’ry eg Chemport, SWETS (63%) 49k bilateral to publisher (39%) 14k to IOP article (11%) 6k to preprint, eg arXiv, SPIRES (5%) 8k to CrossRef (7%) - half Elsevier
Total no of links 248k 53k references have no link (30%)
How much do we use CrossRef (3)? Axiom INSPEC year 2001
195k new journal records 55k CrossRef links (28%) 52k bilateral links (27%) 88k have no links (45%)
How much do we use CrossRef (4)? Axiom click-throughs pointing to
full text (last 12 months) 104k total 55k AIP/APS (53%) 37k CrossRef (36%) 12k remainder (12%)
How much - summary In current IOP electronic journals,
refs 70% have a link (or links) inc CrossRef 7% rely on CrossRef link 30% of refs have no link to full text
In current Axiom (INSPEC) 55% have a link (or links) inc CrossRef 28% we rely on CrossRef link 45% of refs have no link to full text
(back sweeps may reduce this)
What’s our experience of using CrossRef? We support the principle We love all the nice people Technically…it’s not been easy EJs - not much problem Axiom - more tricky
Axiom technical problems 5000 new abstracts per week About 30% need CrossRef links Much staff time dealing with it Manual reference check Data deviating from the spec Often“Timed Out” with no notice Now backlog of >300,000 look-ups Recently stopped using CrossRef at
all! New CrossRef system seems better :-)
Working for EJs; Axiom will try soon
Other issues with CrossRef Transfer of ownership
Not seamless if new owner fails to update metadata (new URL for the DOI)
Affiliates need not link to primary source! Primary publishers must do so Secondary need not. WHY NOT?
60%members deposit but don’t link! So we send them readers... but they don’t send readers to us!
These are not the fault of CrossRef staff MEMBERS - COME ON, PLAY THE GAME !
How much does CrossRef cost us? For electronic journals p.a.
Membership $1000 Deposit articles $6500 Retrieve articles $500
For Axiom p.a. Membership $5000 Retrieve articles $8500
For archive (one off) Deposit $8250 Retrieve $8500
How should CrossRef develop? EVERYTHING TO IMPROVE LINKING More links to books and grey literature Affordable subsets of MDDB we can buy
Good for CrossRef as well as for us Linking tools - e.g. graphical “history” of
a “reference trail” Forward citation: deposit refs attached to
papers. Let’s not repeat history! Cross Search abstracts - NO NO!
Move away from core role - linking (PILA) It’s competing with secondaries
Summary IOP always keen on reference linking Many linking relationships CrossRef (in physics) is valuable sweep up CrossRef (for Axiom) is largest single link We support CrossRef, value relationship Technical problems may be resolved? Future: more linking items, not searching
grey literature MDDB slices reference trails forward citing!!!!
Thank you [email protected] www.iop.org