Kurtz, Michael J.Eichhorn, GuentherAccomazzi, AlbertoGrant, Carolyn S.Demleitner, MarkusMurray, Stephen S.
Abstract
The NASA Astrophysics Data System (ADS), along with astronomy's journals and data centers (a collaboration dubbed URANIA), has developed a distributed on-line digital library which has become the dominant means by which astronomers search, access and read their technical literature. Digital libraries permit the easy accumulation of a new type of bibliometric measure, the number of electronic accesses (``reads'') of individual articles. By combining data from the text, citation, and reference databases with data from the ADS readership logs we have been able to create Second Order Bibliometric Operators, a customizable class of collaborative filters which permits substantially improved accuracy in literature queries. Using the ADS usage logs along with membership statistics from the International Astronomical Union and data on the population and gross domestic product (GDP) we develop an accurate model for world-wide basic research where the number of scientists in a country is proportional to the GDP of that country, and the amount of basic research done by a country is proportional to the number of scientists in that country times that country's per capita GDP. We introduce the concept of utility time to measure the impact of the ADS/URANIA and the electronic astronomical library on astronomical research. We find that in 2002 it amounted to the equivalent of 736 FTE researchers, or 250 Million, or the astronomical research done in France.Details
Publication | The Journal of the American Society for Information Science and Technology, Vol. 56, p. 36. |
Publication Date | 2005-00-00 |
DOI | 10.1002/asi.20095 10.48550/arXiv.0909.4786 |
arXiv | arXiv:0909.4786 |
Bibcode | |
Keywords | |
E-Print Comment(s) | ADS bibcode: 2005JASIS..56...36K This is a portion (The bibliometric properties of article readership information is the other part) of the article: The NASA Astrophysics Data System: Sociology, bibliometrics and impact, which went on-line in the summer of 2003; The Journal of the American Society for Information Science and Technology, Vol. 56, p. 36. (2005); doi:10.1002/asi.20095 |