DG Update: May 2002

National Institute of Statistical Sciences

Digital Government:

Project Update - May 2002

1. DATA CONFIDENTIALITY TECHNOLOGY DAY. More than 30 people attended the May 29 Data Confidentiality Day at the Bureau of Labor Statistics in Washington. Presentations and photographs are available on the NISS Affiliates Web site, at http://www.niss.org/affiliates/dctechday200205/dctechday200205.html

2. DATA SWAPPING WEB SERVICE. NISS WebSwap, a Web service that performs data swapping based on user specification of

The data file
The swapping rate (relative to the database or relative to a pre-defined set of "vulnerable" records)
Attribute(s) to be swapped
Constraints on other attributes (for example, records may be swapped only if they agree on attribute A, or only if they differ on attribute B)

will soon be available as an experimental Web Service, at www.niss-webservices.org. You will receive a notification by E-mail. To use NISS WebSwap, it will be necessary to download an installation package containing the client software, demonstration files and user documentation from the NISS Web site.

3. PRESENTATIONS

At the Department of Mathematics and Statistics, University of Massachusetts, Amherst, May 9:

Stephen Fienberg: Conditional Distributions, Log-linear Models, and Disclosure Limitation Methods

At dg.o 2002, Redondo Beach, CA, May 20, 2002:

Alan Karr, Adrian Dobra and Ashish Sanil: Optimal Tabular Releases from Confidential Data

The five presentations from the Data Confidentiality Technology Day are listed and available on the NISS Affiliates Web site, as noted in item 1 above.

4. PUBLICATIONS: The following papers have been accepted for publication:

Adrian Dobra, Alan F. Karr, Ashish P. Sanil, Stephen E. Fienberg, "Software Systems for Tabular Data Releases." International Journal on Uncertainty, Fuzziness and Knowledge-Based Systems
Mario Trottini and Stephen E. Fienberg, "Modelling User Uncertainty for Disclosure Risk and Data Utility." International Journal on Uncertainty, Fuzziness and Knowledge-Based Systems
Alan F. Karr, Adrian Dobra and Ashish P. Sanil, "Table servers: Protecting Confidentiality in Tabular Data." Communications of the ACM

Copies can be downloaded from http://www.niss.org/dg/technicalreports.html

5. LA TIMES ARTICLE. In connection with dg.o 2002, the annual Conference on Digital Government Research, the Los Angeles Times (5/20/02 business section) ran an article on NSF's digital government program, which included a nice mention of the NISS project (even though they did not get our name quite right -- it came out as National Institute of Statistical Analysis). The article may still be available on the LA Times Web site (http://www.latimes.com).

6. JSM EVENTS. Reminder!! NISS-sponsored events at JSM 2002 include:

Monday, August 12, 2:00 - 3:50 PM (Hilton Hotel, Nassau A)
NISS JSM 2002 Session -- Data Quality: A Statistical Perspective
Monday, August 12, 5:00 - 7:00 PM (Hilton Hotel, Trianon Ballroom)
NISS/SAMSI Reception, featuring announcement of 2002 Sacks Award Recipient

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