Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library

Abstract

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. Subject headings: digital libraries; bibliometrics; sociology of science; information retrieval

arXiv commentADS 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

References in corpus (6)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• The SIMBAD astronomical database
• The NASA Astrophysics Data System: Overview
• The NASA Astrophysics Data System: The Search Engine and its User Interface
• The NASA Astrophysics Data System: Data Holdings
• The NASA Astrophysics Data System: Architecture

Cited by in corpus (16)

• The Effect of Use and Access on Citations
• Usage Bibliometrics
• The Bibliometric Properties of Article Readership Information
• A measure of total research impact independent of time and discipline
• Usage History of Scientific Literature: Nature Metrics and Metrics of Nature Publications
• Measuring Metrics - A forty year longitudinal cross-validation of citations, downloads, and peer review in Astrophysics
• Use of Astronomical Literature - A Report on Usage Patterns
• Towards Usage-based Impact Metrics: - First Results from the MESUR Project
• Toward alternative metrics of journal impact: A comparison of download and citation data
• Usage Bibliometrics as a Tool to Measure Research Activity
• The ADS in the Information Age - Impact on Discovery
• Robust Archives Maximize Scientific Accessibility
• From Dark Energy to Exolife: Improving the Digital Information Infrastructure for Astrophysics
• Multilingual Topic Models
• The Emerging Scholarly Brain
• The Smithsonian/NASA Astrophysics Data System (ADS) Decennial Report