www.jstor.org linking between jstor and other resources spencer w. thomas kevin guthrie beth...
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www.jstor.orgwww.jstor.org
Linking between JSTOR and other resources
Spencer W. Thomas
Kevin Guthrie
Beth Kirschner
Overview
• Mission and Update
• Challenges
• JSTOR’s linking facilities
• User reaction to JSTOR – some implications for linking?
JSTOR’s Not-for-Profit Mission
• Help the scholarly community take advantage of advances in information technologies
• Develop a trusted archive of core scholarly journal literature, emphasizing conversion of entire journal backfiles and preservation of future e-versions
• Enhance the accessibility of older journal literature
In pursuing its mission, JSTOR takes a system-wide perspective, seeking benefits for libraries, publishers and scholars & students
How are We Doing?
• Five Archive Collections, 9 million pages total• Nearly 1,300 institutions signed up from 60
countries• 2001 usage:
- 6.3 million articles printed
- 12.8 million searches
- 50.2 million total accesses
• Are we adding new collections fast enough?
JSTOR Accesses 1997 – 2001
0
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
7,000,000
8,000,000
Archive Coverage
• Scope of JSTOR’s archive– 218 titles in 24 disciplines (22 Math+Stats)– 698,406 full length articles (116,723 M+S)– 9,183,416 pages (1,305,979 M+S)– 16+ linking partners (current or in discussion)– Hundreds of years– Not “born digital”
Challenges…
• Solutions must work across broad topical range
• Solutions must work for historical material
• Solutions should work for individual researcher or large A&I database
Linking into JSTOR
• Serial Item Contribution Identifier: SICI
• Tools to build and check SICIs
• SICI resolution to article, issue, or list
JSTOR Linking Server
JSTOR and LinkingHow and Why
The Independence of Peano's Fourth Axiom from Martin-Lof's Type Theory Without Universes Jan M. Smith Journal of Symbolic Logic, Vol. 53, No. 3. (Sep., 1988), pp. 840-845.
JSTOR and LinkingHow and Why
/fcgi-bin/jstor/viewitem.fcg/00224812/di985236/98p00714/0
ID: 00224812 DI985236 98P00714
The Independence of Peano's Fourth Axiom from Martin-Lof's Type Theory Without Universes Jan M. Smith Journal of Symbolic Logic, Vol. 53, No. 3. (Sep., 1988), pp. 840-845.
JSTOR and LinkingHow and Why
/fcgi-bin/jstor/viewitem.fcg/00224812/di985236/98p00714/0
ID: 00224812 DI985236 98P00714
/sici?sici=0022-4812%28198809%2953%3A3%3C840%3ATIOPFA%3E2.0.CO%3B2-B
ID: 0022-4812(198809)53:3<840:TIOPFA>2.0.CO;2-B
The Independence of Peano's Fourth Axiom from Martin-Lof's Type Theory Without Universes Jan M. Smith Journal of Symbolic Logic, Vol. 53, No. 3. (Sep., 1988), pp. 840-845.
SICI Matching
• ISSN (must match!)
• Other elements by priority order– Date– Numeration (vol/issue, e.g.)– Page number– Title code
• Multiple matches are possible
Individual Citation Tool
SICI generation for linking
• Linking partner generates SICIs.
• CheckSici tool: generate a SICI from citation info, or check a single SICI.
• BulkSici tool: validate a list of SICIs, return results by email.
Linking Partner: MathSciNet
Linking Partner: CDL
Linking Partner: Ecol. Soc. Am.
Linking Partners
• Linking Partners: A&I services: ABC-CLIO, PCI, OCLC First
Search, EBSCOHost, MathSciNet, … Ex Libris (SFX) Libraries/consortia: Calif DL, Decomate,
OhioLink, many others Publishers: Ecological Society of America,
University of Chicago Press, Blackwell, …
Linking from JSTOR
• Links to “current content” online
• Fill the gap between JSTOR archive and publisher’s electronic holdings
• Complement existing links from publisher online to JSTOR
• Planned release mid-2002
Math Reviews – JSTOR Use
Year Successful links
Total math views/prints
% of Views
2000 52,000 (est) 187,954 / 108,631
28%
2001 77,655 206,322 / 194,505
38%
2002
to 14 March
17,677 56,342 / 47,439
31%
Usage by Discipline - 2001
Year
Total
Accesses
% of
Accesses
% of
Pages
Mathematics 1,007,594 2.7% 14.2%
Economics 6,326,530 16.8% 11.7%
History 5,452,743 14.6% 12.3%
Relationship Between JSTOR Use and Citations by Discipline
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 1 2 3
0 1 2 3
0 1 2 3
Citations 1998-2001
Lo
g1
0 P
rin
ts
Social Sciences Mathematics Humanities
R-Squared = 0.4364
R-Squared = 0.1218
R-Squared = 0.3847
Interpretation
• Overall citations do not predict JSTOR use well at all. In other words, highly cited articles are not more likely to be highly used.
• It also means usage is not dominated by users trying to build a citation list, or by people coming to articles because they saw them cited in another article
• There are variations by discipline. Citations and articles printed from JSTOR are more related in Economics and History than in Mathematics
Relationship Between JSTOR Use and Age of the Article, by
Discipline
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1920 1940 1960 1980 2000
1920 1940 1960 1980 2000
1920 1940 1960 1980 2000
Publication Year
Lo
g1
0 P
rin
ts
Social Sciences Mathematics Humanities
R-Squared = 0.0367
R-Squared = 0.067R-Squared = 0.467
Interpretations
• Overall, age of the article does not predict JSTOR use
• More recent articles are not more likely to be highly used than older articles
• There are variations by discipline. History journals show the highest correlation between the age of the article and use. People using history journals seem to be using more recent articles.
www.jstor.orgwww.jstor.org
Linking between JSTOR and other resources
Spencer W. Thomas
Kevin Guthrie
Beth Kirschner