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A Publication of Internet Scout Computer Sciences Department, University of Wisconsin-Madison Society of Architectural Historians: Archipedia Classic Buildings The International Year of Statistics Cross-Cultural Investigations: Technology and Development California Geological Survey-Educational Resources Center
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(Scroll down or click to enter a new search .) Coverage: 1993-current, updated bi-monthly Description: Over 580,000 papers included in every congress, conference, exposition, workshop, symposium, and meeting received at The British Library from October 1993 to the present. Access: UA, Remote
The classic model of information retrieval (IR) used in information science research for over twenty-five years can be characterized as follows (Compare Robertson , especially p. 129): This model has been very productive and has promoted our understanding of information retrieval in many ways. However, as Kuhn  noted, major models that are as central to a field as this one is, eventually begin to show inadequacies as testing leads to greater and greater understanding of the processes being studied. The limitations of the original model's representation of the phenomenon of interest become more and more evident.
As Director of the Office of Scientific Research and Development, Dr. Vannevar Bush has coordinated the activities of some six thousand leading American scientists in the application of science to warfare. In this significant article he holds up an incentive for scientists when the fighting has ceased.
This is a preprint of an article published in the Journal of the American Society of Information Science 42:5 (June 1991): 351-360, published for the American Society for Information Science by Wiley and available online to ASIS members and other registered users at http://www.interscience.wiley.com/. This text may vary slightly from the published version. Similar discussion occurs in the authors Information and Information Systems (Greenwood Press, 1991; Paperback: Praeger).