Document (#15571)

Author

Bookstein, A.

Title

Bibliocryptography

Source

Journal of the American Society for Information Science. 47(1996) no.12, S.886-895

Year

1996

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

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