Mathematics – Logic
Scientific paper
Sep 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997agab...13..149e&link_type=abstract
Astronomische Gesellschaft Abstract Series, No. 13, p. 149
Mathematics
Logic
Scientific paper
The NASA Astrophysics Data System provides access to about 1 million abstracts and 50,000 journal articles. This service is funded by NASA and is accessible world-wide through the World Wide Web free without restrictions at: http://adswww.harvard.edu The ADS abstract service allows the searching of a database of abstracts. The abstracts can be searched through a sophisticated search engine by author, astronomical object, title, and text. Various logical combinations of the search terms can be selected. Search results can be filtered by journal, publication date, and other criteria. The search returns a list of references with titles, author lists, and scores that indicate how closely the reference matches the query. The returned references also include hyperlinks to other information where available (e.g. abstracts, full journal articles, data tables, electronic on-line publications, references, citations, lists of astronomical objects, etc.) The ADS article service provides access to full journal articles for all major and many smaller journals. We scan the journals that give us permission at a resolution of 600 dpi. The scans can then be retrieved either for viewing on-screen in gif format, or for printing in Postscript or PCL format. We currently have articles back to 1975 on-line. We plan to eventually scan most of the historical astronomical literature as well. We have recently included the preprints from the Los Alamos preprint server. they are available in a separate database through the same search engine as the other abstracts. Preprints are kept on-line for 6 months. The American Astronomical Society has purchased citation information for 100,000 articles from the Institute for Scientific Information (ISI). This allows us to include links to lists of references and citations in our results page for articles in this set. In order to improve access times for non-US users, we are mirroring the abstract service. We currently have mirrors at the CDS in Strasbourg, France, and at NAO in Tokyo, Japan. Both mirrors can be found from our main page. The mirror site in Japan also mirrors the article service. We are looking for other mirror sites, in particular a site in Germany. Another new feature is the Table of Contents query page. It allows our users to retrieve either the latest volume they they have not read or the latest published volume for a number of journals, depending on the user preference settings. The preferences are maintained on a per-user basis through the use of WWW cookies. These preferences can be used to customize the ADS and its features.
Accomazzi Alberto
Eichhorn Guenther
Grant Carolyn S.
Kurtz Michael J.
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