Search (5 results, page 1 of 1)

  • × author_ss:"Bookstein, A."
  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Bookstein, A.; Raita, T.: Discovering term occurence structure in text (2001) 0.00 
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    Abstract
    This article examines some consequences for information control of the tendency of occurrences of contentbearing terms to appear together, or clump. Properties of previously defined clumping measures are reviewed and extended, and the significance of these measures for devising retrieval strategies discussed. A new type of clumping measure, which extends the earlier measures by permitting gaps within a clump, is defined, and several variants examined. Experiments are carried out that indicate the relation between the new measure and one of the earlier measures, as well as the ability of the two types of measure to predict compression efficiency
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.6, S.476-486
  2. Bookstein, A.: Implications of ambiguity for scientometric measurement (2001) 0.00 
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    Abstract
    Finally, Bookstein points to the ambiguity of our measurements that seems to present a structural impediment to the development of social science theory. Our theory always seems to be at an early stage, information science still at the frontier.
    Footnote
    Beitrag eines Themenheftes: Still the Frontier: Information Science at the Millenium
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.1, S.74-79
  3. Swanson, D.R.; Smalheiser, N.R.; Bookstein, A.: Information discovery from complementary literatures : categorizing viruses as potential weapons (2001) 0.00 
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    Abstract
    Using novel informatics techniques to process the Output of Medline searches, we have generated a list of viruses that may have the potential for development as weapons. Our findings are intended as a guide to the virus literature to support further studies that might then lead to appropriate defense and public health measures. This article stresses methods that are more generally relevant to information science. Initial Medline searches identified two kinds of virus literaturesthe first concerning the genetic aspects of virulence, and the second concerning the transmission of viral diseases. Both literatures taken together are of central importance in identifying research relevant to the development of biological weapons. Yet, the two literatures had very few articles in common. We downloaded the Medline records for each of the two literatures and used a computer to extract all virus terms common to both. The fact that the resulting virus list includes most of an earlier independently published list of viruses considered by military experts to have the highest threat as potential biological weapons served as a test of the method; the test outcome showed a high degree of statistical significance, thus supporting an inference that the new viruses an the list share certain important characteristics with viruses of known biological
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.10, S.797-812
  4. Bookstein, A.; Moed, H.; Yitzahki, M.: Measures of international collaboration in scientific literature : part I (2006) 0.00 
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    Source
    Information processing and management. 42(2006) no.6, S.1408-1421
  5. Bookstein, A.; Moed, H.; Yitzahki, M.: Measures of international collaboration in scientific literature : part II (2006) 0.00 
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    Source
    Information processing and management. 42(2006) no.6, S.1422-1427

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