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Engineering Subject Areas Vary in Coverage by Google Scholar John J Meier Pennsylvania State University
Question <ul><li>Can Google Scholar be recommended as a resource for searching the Engineering literature? </li></ul><ul><...
Original Study <ul><li>Search Google Scholar for bibliographic results from Compendex by decade from 1950-2007 in eight se...
Original Study <ul><li>Percentage of records discoverable in Google Scholar increased over time in all subjects, approachi...
Subjects with the best results
Subjects weak in early decades
Further study <ul><li>Where is this Open Access bibliographic data coming from? </li></ul><ul><li>Some notes were made in ...
Aeronautical Engineering  <ul><li>1950s= publisher sites, NASA tech report server, strormingmedia site, STINET </li></ul><...
Civil Engineering <ul><li>1950s= STINET </li></ul><ul><li>1960s= publisher sites, STINET, ci.nii.ac.jp </li></ul><ul><li>1...
Computer Engineering <ul><li>1950s= publisher sites, ACM, IEEE, link.aip.org </li></ul><ul><li>1960s= ACM, IEEE, CSA, domi...
Electrical Engineering <ul><li>1950s= IEEEXplore </li></ul><ul><li>1960s= IEEE, CSA </li></ul><ul><li>1970s= IEEE, link.ai...
Environmental Engineering <ul><li>1950s= incomplete records </li></ul><ul><li>1960s= CSA, Springer </li></ul><ul><li>1970s...
Industrial Engineering <ul><li>1950s= ci.nii.ac.jp (only 1 hit for this decade) </li></ul><ul><li>1960s= publisher sites, ...
Mechanical Engineering <ul><li>1950s= deepblue.umich.edu  (only 1 hit for this decade) </li></ul><ul><li>1960s= publisher ...
Nuclear Engineering <ul><li>1950s= publisher sites, OSTI, IEEE </li></ul><ul><li>1960s= OSTI, adsabs.harvard.edu, link.aip...
Government Documents <ul><li>Strong in Aeronautical, Civil, Environmental, </li></ul><ul><li>Mechanical, and Nuclear Engin...
Commercial Websites <ul><li>Strong in Aeronautical, Computer, and Mechanical Engineering </li></ul><ul><li>Includes: </li>...
International Bibliographies <ul><li>Contribute remarkably to most subjects (not Environmental) </li></ul><ul><li>Includes...
Pre-prints <ul><li>Not very frequent </li></ul><ul><li>Includes: </li></ul><ul><ul><li>deepblue.umich.edu </li></ul></ul><...
Publishers <ul><li>Strong in all subjects, but more frequent in later decades </li></ul><ul><li>Includes: </li></ul><ul><u...
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Engineering Subject Areas Vary in Coverage by Google Scholar

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This is a presentation I will be giving at the ASEE conference in Pittsburgh, PA for the Engineering Libraries Division

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Transcript of "Engineering Subject Areas Vary in Coverage by Google Scholar"

  1. 1. Engineering Subject Areas Vary in Coverage by Google Scholar John J Meier Pennsylvania State University
  2. 2. Question <ul><li>Can Google Scholar be recommended as a resource for searching the Engineering literature? </li></ul><ul><li>How does it compare to licensed databases? </li></ul><ul><ul><li>User interface of Google Scholar – research existed </li></ul></ul><ul><ul><li>Content – research existed for other disciplines </li></ul></ul>
  3. 3. Original Study <ul><li>Search Google Scholar for bibliographic results from Compendex by decade from 1950-2007 in eight separate subject areas </li></ul><ul><li>Samples obtained by keyword searching Compendex </li></ul><ul><li>Title and/or Author searches were conducted in Google Scholar </li></ul>
  4. 4. Original Study <ul><li>Percentage of records discoverable in Google Scholar increased over time in all subjects, approaching 90% in the last two decades. </li></ul><ul><li>Specific results originally published in </li></ul><ul><li>Meier, J. and Conkling, T. “Google Scholar’s Coverage of the Engineering Literature: An Empirical Study.” The Journal of Academic Librarianship. Volume 34, Issue 3, May 2008 [doi:10.1016/j.acalib.2008.03.002] </li></ul>
  5. 5. Subjects with the best results
  6. 6. Subjects weak in early decades
  7. 7. Further study <ul><li>Where is this Open Access bibliographic data coming from? </li></ul><ul><li>Some notes were made in the original study, but most searches were re-run and the URLs of the Google Scholar results were recorded by decade in each subject area </li></ul>
  8. 8. Aeronautical Engineering <ul><li>1950s= publisher sites, NASA tech report server, strormingmedia site, STINET </li></ul><ul><li>1960s= publisher sites, CSA, NASA tech report server, NASA ADS </li></ul><ul><li>1970s= publisher sites, CSA, ci.nii.ac.jp </li></ul><ul><li>1980s= publisher sites, CSA, ci.nii.ac.jp </li></ul><ul><li>1990s= publisher sites, CSA, NASA Langley server </li></ul><ul><li>2000s= publisher sites, CSA, e-data-center.com </li></ul>
  9. 9. Civil Engineering <ul><li>1950s= STINET </li></ul><ul><li>1960s= publisher sites, STINET, ci.nii.ac.jp </li></ul><ul><li>1970s= publisher sites, OSTI, STINET, scholr.ilib.cn </li></ul><ul><li>1980s= publisher sites, STINET, scholar.ilib.cn, cat.inist.fr </li></ul><ul><li>1990s= publisher sites, CSA, university site, OSTI, NRC Canada site </li></ul><ul><li>2000s= publisher sites, link.aip.org, CSA, NRC Canada, cat.inist.fr </li></ul>
  10. 10. Computer Engineering <ul><li>1950s= publisher sites, ACM, IEEE, link.aip.org </li></ul><ul><li>1960s= ACM, IEEE, CSA, domino.watson.ibm.com </li></ul><ul><li>1970s= publisher sites, ACM, IEEE, CSA, link.aip.org, </li></ul><ul><li>adsabs.harvard.edu, eric.ed.gov </li></ul><ul><li>1980s= publisher sites, ACM, IEEE, OSTI, cat.inist.fr </li></ul><ul><li>1990s= publisher sites, IEEE, CSA, SPIE, ieice.org </li></ul><ul><li>2000s= publisher sites, IEEE, CSA, link.aip.org, </li></ul><ul><li>elecdesign.com </li></ul>
  11. 11. Electrical Engineering <ul><li>1950s= IEEEXplore </li></ul><ul><li>1960s= IEEE, CSA </li></ul><ul><li>1970s= IEEE, link.aip.org </li></ul><ul><li>1980s= IEEE, NASA Astrophysics Data System (ADS) </li></ul><ul><li>1990s= IEEE, CSA </li></ul><ul><li>2000s= IEEE, publisher sites, cat.inist.fr </li></ul><ul><li>(OSTI, STINET, freepatentsonline, search.ieice.org) </li></ul>
  12. 12. Environmental Engineering <ul><li>1950s= incomplete records </li></ul><ul><li>1960s= CSA, Springer </li></ul><ul><li>1970s= CSA, Springer, pubs.asce.org, awwa.org, </li></ul><ul><li>ncbi.nlm.nih.gov </li></ul><ul><li>1980s= CSA, Springer, pubs.asce.org, OSTI, baes.bireme.br </li></ul><ul><li>1990s= CSA, Springer, IEEE, cheric.org </li></ul><ul><li>2000s= publisher sites, CSA, Springer, desline.com, </li></ul><ul><li>nhm.nih.gov, nrel.gov, scholar.ilib.cn </li></ul>
  13. 13. Industrial Engineering <ul><li>1950s= ci.nii.ac.jp (only 1 hit for this decade) </li></ul><ul><li>1960s= publisher sites, CSA, SAE, STINET </li></ul><ul><li>1970s= publisher sites, CSA, SAE, IEEE, PubMed </li></ul><ul><li>1980s= publisher sites, CSA, SAE, OSTI, cat.inist.fr, </li></ul><ul><li>scientificcommons.org </li></ul><ul><li>1990s= publisher sites, CSA, SAE, STINET, IEEE, </li></ul><ul><li>cat.inist.fr, ci.nii.ac.jp, Google patents </li></ul><ul><li>2000s= publishers, personal websites, CSA, IEEE, cat.inist.fr </li></ul>
  14. 14. Mechanical Engineering <ul><li>1950s= deepblue.umich.edu (only 1 hit for this decade) </li></ul><ul><li>1960s= publisher sites, Google patents </li></ul><ul><li>1970s= publisher sites, CSA </li></ul><ul><li>1980s= CSA, publisher sites, NASA ADS, cat.inist.fr, ci.nii.ac.jp </li></ul><ul><li>1990s= publisher sites, cat.inist.fr, link.aip.org, CSA, Google books, NASA ADS </li></ul><ul><li>2000s= publisher sites, CSA, Google books, university </li></ul>
  15. 15. Nuclear Engineering <ul><li>1950s= publisher sites, OSTI, IEEE </li></ul><ul><li>1960s= OSTI, adsabs.harvard.edu, link.aip.org, aps.org </li></ul><ul><li>1970s= OSTI, CSA </li></ul><ul><li>1980s= publisher sites, OSTI, CSA, IEEE, cat.inist.fr </li></ul><ul><li>1990s= publisher sites, OSTI, IEEE, cat.inist.fr, arxiv.org </li></ul><ul><li>2000s= publisher sites, OSTI, CSA, cat.inist.fr </li></ul>
  16. 16. Government Documents <ul><li>Strong in Aeronautical, Civil, Environmental, </li></ul><ul><li>Mechanical, and Nuclear Engineering </li></ul><ul><li>Includes: </li></ul><ul><ul><li>NASA – ADS and technical report server </li></ul></ul><ul><ul><li>OSTI </li></ul></ul><ul><ul><li>STINET - DTIC </li></ul></ul><ul><ul><li>NRC Canada </li></ul></ul><ul><ul><li>Patents </li></ul></ul>
  17. 17. Commercial Websites <ul><li>Strong in Aeronautical, Computer, and Mechanical Engineering </li></ul><ul><li>Includes: </li></ul><ul><ul><li>Google Books </li></ul></ul><ul><ul><li>Ibm.com </li></ul></ul><ul><ul><li>Various other .coms </li></ul></ul>
  18. 18. International Bibliographies <ul><li>Contribute remarkably to most subjects (not Environmental) </li></ul><ul><li>Includes: </li></ul><ul><ul><li>cat.inist.fr = Centre National De La Recherche Scientifique </li></ul></ul><ul><ul><li>ci.nii.ac.jp = CINII Scholarly and Academic Information Navigator </li></ul></ul><ul><ul><li>ilib.cn = commercial data company </li></ul></ul><ul><ul><li>bireme.br = Virtual Health Library </li></ul></ul>
  19. 19. Pre-prints <ul><li>Not very frequent </li></ul><ul><li>Includes: </li></ul><ul><ul><li>deepblue.umich.edu </li></ul></ul><ul><ul><li>arxiv.org </li></ul></ul><ul><ul><li>university depositories </li></ul></ul><ul><ul><li>personal websites </li></ul></ul>
  20. 20. Publishers <ul><li>Strong in all subjects, but more frequent in later decades </li></ul><ul><li>Includes: </li></ul><ul><ul><li>CSA and IEEE with the most available bibliographic data in Engineering </li></ul></ul><ul><ul><li>professional societies </li></ul></ul><ul><ul><li>other publishers, most recently Elsevier itself </li></ul></ul>
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