Search (6 results, page 1 of 1)

  • × author_ss:"Bookstein, A."
  • × language_ss:"e"
  • × year_i:[1990 TO 2000}
  1. Bookstein, A.: Bibliocryptography (1996) 0.01
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    Abstract
    Because of concerns about the privacy of its patrons, it is common for libraries to systematically destroy historic information about book circulation. I argue that this information has great potential value for improving retrieval effectiveness, and give 2 examples of how this information can be used. Further, I show how use-data can be preserved and exploited while still giving a high degree of protection for patron privacy. The methods are analyzed and formulae are derived indicating the tradeoff between retrieval effectiveness and security. A second, contrasting application, indicating how to introduce 'fingerprints' into digitized audio-visual material in a tamper-resistant manner, is described
    Source
    Journal of the American Society for Information Science. 47(1996) no.12, S.886-895
  2. Bookstein, A.; Klein, S.T.; Raita, T.: Clumping properties of content-bearing words (1998) 0.01
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    Abstract
    Information Retrieval Systems identify content bearing words, and possibly also assign weights, as part of the process of formulating requests. For optimal retrieval efficiency, it is desirable that this be done automatically. This article defines the notion of serial clustering of words in text, and explores the value of such clustering as an indicator of a word's bearing content. This approach is flexible in the sense that it is sensitive to context: a term may be assessed as content-bearing within one collection, but not another. Our approach, being numerical, may also be of value in assigning weights to terms in requests. Experimental support is obtained from natural text databases in three different languages
    Source
    Journal of the American Society for Information Science. 49(1998) no.2, S.102-114
  3. Bookstein, A.: Informetric distributions : I. Unified overview (1990) 0.00
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    Date
    22. 7.2006 18:55:29
    Source
    Journal of the American Society for Information Science. 41(1990) no.5, S.368-375
  4. Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990) 0.00
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    Date
    22. 7.2006 18:55:55
    Source
    Journal of the American Society for Information Science. 41(1990) no.5, S.376-386
  5. Bookstein, A.; Klein, S.T.: Compression, information theory, and grammars : a unified approach (1990) 0.00
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    Source
    ACM transaction on information systems. 8(1990), S.27-49
  6. Bookstein, A.: Informetric distributions : III. Ambiguity (1997) 0.00
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    Source
    Journal of the American Society for Information Science. 48(1997) no.1, S.2-10