the aggregator database cornerstone or annex

Aggregators: Cornerstone or Annex?

Beverly GeckleSuzanne Mangrum

Questions/Purpose:

• E-journal collection assessment and collection development project focused on e-journal aggregator content.

• Aggregators have become a standard in the library’s collection, but what have we really purchased?

• Analyze aggregator content by subject and quality.

AggregatorOnline Dictionary for Library and Information Science. http://www.abc-clio.com/ODLIS/odlis_A.aspx

A bibliographic service that provides online access to the digital full-text of periodicals published by different publishers. Because aggregator databases can be very large, tracking their coverage is not an easy task for serials librarians. A task group of the Program for Cooperative Cataloging (PCC) is working on standards for analytic catalog records for serials titles available electronically from aggregator services. Currently, the top two journal aggregators in the United States are EBSCO and ProQuest. Recently, EBSCO has been building market share by offering higher up-front payments to secure exclusivity from the publishers of certain journals. The effects of this competitive practice on libraries and the end-user are as yet unclear.

Chosen Aggregator http://www.ebscohost.com/academic/academic-search-premier

Data Parts

ASP

UlrichsWeb

Quality Full Text

Impact factors

Subjects

Journal Citation Rpts

Data Parts

ASP

UlrichsWeb

Quality Full Text

Impact factors

Subjects

Journal Citation Rpts

ASP – Basic Criteria

ASP

Quality Full Text

First, we were interested in the ASP data that matched our basic criteria for quality:

• Full-Text

• Peer-Reviewed

• PDFs

Data Parts

ASP

UlrichsWeb

Quality Full Text

Impact factors

Subjects

Journal Citation Rpts

Data Parts - UlrichsWeb

UlrichsWeb

Subjects

• Business & Economics

• Social Sciences & Humanities

• Government, Law, & Public Administration

• Education

• Sports, Leisure, & Recreation

We used UlrichsWeb to limit our data to certain subjects. We decided to focus on the Social Sciences. We selected the following subject groups:

Data Parts

ASP

UlrichsWeb

Quality Full Text

Impact factors

Subjects

Journal Citation Rpts

Data Parts

Impact factors

We used Thomson Reuter’s ISI Journal Citation Reports (ISI) to identify the very best journals by impact factor.

We chose multiple subject sets that fell within the broad subject of social science.

Journal Citation Rpts

METHODOLOGY

METHODOLOGYFiltering

Data downloaded

Needed massaging

Filtered each data source to create subsets

Matching

Subject Subsets matched to identify high quality (high impact) titles

The resulting subsets were then matched for coverage

Methodology - Filtering

ASP – Coverage Dates

UlrichsWeb – Subjects in ASP

Journal citation reports – Top 25 of chosen subjects

ASP - Filtering

ISI Top 25

UlrichsWeb

Quality Full Text

Impact factors

Subjects

Further broken out by coverage

Total ASP

PDF images

end date

embargo

to present

Coverage

Used data from ASP spreadsheet to also filter by coverage.

ASP

ASP title list: ASP Full Text Titles that are peer reviewed and available as a PDF

Limited to Full Text titles4768 titles

Marked values using Conditional Formatting in Excel

Then sorted the columns by marked values to filter coverage categories

Full Text & no end date3674 titles

Full Text not embargoed1734 titles

Full Text to Present, PR and PDF 1262 titles

Repeated process for additional categories:

• Titles with an end date (Full Text Stop

• Titles embargoed (Full Text Delay)

Ulrichs

III query against SS MARC records in ILS

Ensure that an end date was truly a coverage limitation we removed ceased titles.

Focus on current titles

ASP Filtered Subsets

Total ASP

PDF images

end date

embargo

to present

UlrichsWeb - Filtering

ISI Top 25

UlrichsWeb

Quality Full Text Impact factors

Subjects

UlrichsWeb – Filtering

We downloaded the filtered subject list from Ulrich’s and used Conditional Formatting to pull out all titles available in Academic Search Premier.

Ulrich’s Business & Economics 1047

EBSCOhost 891

ASP (full text)

104

Journal Reports - Filtering

ISI Top 25

UlrichsWeb

Quality Full Text

Impact factors

Subjects

ISI Journal Citation Reports

ISI Journal Citation Reports

Subject Matching

• Anthropology• Area Studies• Business• Business, Finance• Communication• Criminology &

Penology• Cultural Studies• Demography• Economics• Education &

Education Research• Education, Special• Environmental

Studies• Ergonomics• Ethics• Ethnic Studies• Family Studies• Geography• Gerontology• Health policy &

Services• History• History &

Philosophy of Science

• History of Social Sciences

• Hospitality, Leisure,

Sport & Tourism• Industrial Relations

& Labor• Information Science

& Library Science• International

Relations• Law• Linguistics• Management• Planning &

Development• Political Science• Psychiatry• Psychology, Applied• Psychology,

Biological• Psychology, Clinical• Psychology,

Developmental• Psychology,

Educational• Psychology,

Experimental• Psychology,

Mathematical• Psychology,

Multidisciplinary• Psychology,

Psychoanalysis

• Psychology, Social• Public ,

Environmental & Occupational Health

• Public Administration

• Rehabilitation• Social Issues• Social Sciences,

Biomedical• Social Sciences,

Interdisciplinary• Social Sciences,

Mathematical Sciences

• Social Work• Sociology• Substance Abuse• Transportation• Urban Studies• Women's Studies

• Business & Economics

• Government, Law & Public Administration

• Social Sciences & Humanities

• Education

• Sports, Hobbies, & Recreation

UlrichsWeb – 5 Subjects

ISI Journal Citation Reports – 57 Subjects

ISI Journal Citation Reports

ISI provides the rankings by subject, which was not in our Ulrich’s data

After combining all of the reports, we had over 1200 titles that ranked in the top 25 of our categories

Some titles were listed in more than one subject area, so we deduped the titles but retained all subjects.

Methodology - Matching

Each filtered Ulrich’s subject list was matched with the ISI top 25 spreadsheet

These became our subject lists of high quality titles

Ulrich’s Business & Economics 1047

EBSCOhost 891

ASP (full text)

104

UlrichsWeb – ISICombined ISI Top 25 List

Methodology - Matching

Each subject set was matched to our ASP quality full text list broken out by coverage:

• To present• End date• Embargoed

Subject Lists - Coverage

ASP with end date

ASP to present

ASP Embargoed

RESULTS BY SUBJECT

Results – Social Sciences &

Humanities 149 Social Science titles match top impact factors from ISI

219 Social Science titles in ASP pulled from Ulrich's

421 Social Science titles in UlrichsWeb

157 top Soc Sci titles

To present - 25 of 149 top titles

End date - 17 of 149 top titles

Embargoed - 107 of 149 top titles

Ulrich’s and ISI data filtered by ASP “quality” data

Results – Business27 Business titles match top impact factors from ISI

104 Business titles in ASP pulled from UlrichsWeb

891 Business titles from UlrichsWeb

27 top Business

titles

To present - 7 of 27 top titles

End date - 2 of 27 top titles

Embargoed - 18 of 27 top titles

Ulrich’s and ISI data filtered by ASP “quality” data

Results – Gov’t & Law71 Government & Law titles match top impact factors from ISI

215 Government & Law titles in ASP pulled from Ulrich's

862 Government & Law titles from UlrichsWeb

Ulrich’s and ISI data filtered by ASP “quality” data

71 top Gov't &

Law titles

To present - 18 of 71 top titles

End date - 5 of 71 top titles

Embargoed - 48 of 71 top titles

Results – Education11 Education titles match top impact factors from ISI

114 Education titles in ASP pulled from Ulrich's

329 Education titles in UlrichsWeb

11 top Education titles

To present - 2 of 11 top titles

End date - 6 of 11 top titles

Embargoed - 3 of 11 top titles

Ulrich’s and ISI data filtered by ASP “quality” data

Results – Sports2 Sports & Hobbies titles match top impact factors from ISI

5 Sports & Hobbies titles in ASP pulled from Ulrich's

48 Sports & Hobbies titles in UlrichsWeb

2 top Sportstitles

To present - 0 of 2 top titles

End date - 0 of 2 top titles

Embargoed - 2 of 2 top titles

Ulrich’s and ISI data filtered by ASP “quality” data

Implications for Collection

Development

Discovery vs. Access

Discovery & Cost Implications

Discovery vs. Access

Linked Full Text

Although ASP enabled discovery full text was made available because Library subscribes to the SAGE Premier 2013 package

Discovery vs. Access

Discovery vs. Access

A search in the Journal A-Z List shows that it is embargoed

Discovery vs. Access

Discovery vs. Access

A search in the Journal A-Z List shows that it is embargoed

Discovery & Cost Implications

Results – Subject Perspective

Results – Subject Perspective

Results – Subject Perspective

More questions than answers?

• What is the library really purchasing?

• Indexing, discovery, content.

• Need for better understanding of both discoverability and access.

Thank you!

Please send questions or comments to:Beverly Geckle – beverly.geckle@mtsu.edu, or

Suzanne Mangrum – suzanne.mangrum@mtsu.edu