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  1. Strategies for Preserving Owner Privacy in the National Information Management System of the USDA Forest Service's Forest Inventory and Analysis Unit

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    Author(s): Andrew Lister; Charles Scott; Susan King; Michael Hoppus; Brett Butler; Douglas Griffith
    Date: 2005
    Source: In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 163-166
    Publication Series: General Technical Report (GTR)
    Station: North Central Research Station
    PDF: View PDF  (299.75 KB)
    Note: This article is part of a larger document. View the larger document

    Description

    The Food Security Act of 1985 prohibits the disclosure of any information collected by the USDA Forest Service's FIA program that would link individual landowners to inventory plot information. To address this, we developed a technique based on a "swapping" procedure in which plots with similar characteristics are exchanged, and on a "fuzzing" procedure in which the geographic locations of the plots are randomly perturbed by 805 m. A simulation experiment was performed to assess the effects of fuzzing and swapping. Our results indicate the procedures can provide meaningful information and comply with the law. Further refinements of the technique are ongoing.

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    Citation

    Lister, Andrew; Scott, Charles; King, Susan; Hoppus, Michael; Butler, Brett ; Griffith, Douglas. 2005. Strategies for Preserving Owner Privacy in the National Information Management System of the USDA Forest Service''s Forest Inventory and Analysis Unit. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. Proceedings of the fourth annual forest inventory and analysis symposium; Gen. Tech. Rep. NC-252. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 163-166

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