Watch: House Committee Holds Hearing on Census Timeline

Watch: House Committee Holds Hearing on Census Timeline

By EditorSep 13, 2020
On September 10, the House Committee on Oversight and Reform held a hearing on the status of the Census Bureau's operations in light of Covid-19 delays and other challenges. The hearing was prompted by suspension of count operations in April due to Covid-19, a failed request for Congress to extend critical statutory deadlines for delivery of census data, and an abrupt pivot by the bureau to end its count operations early in an effort to meet the original deadlines for delivery of apportionment and redistricting data. https://youtu.be/c4OF6jQFfgc Witnesses include: J. Christopher Mihm, Managing Director, Strategic Issues Team, Government Accountability Office…
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What Does Differential Privacy in Census Data Mean for the Task of Redistricting?

What Does Differential Privacy in Census Data Mean for the Task of Redistricting?

By Michelle DavisSep 08, 2020
The law requires that any identifying information you give the Census Bureau be kept confidential for 75 yrs, but simply removing your information from what is published is no longer enough. Big data and powerful computing technology now allow almost anyone to "reconstruct" the seemingly anonymized information. That means it is increasingly possible to identify who you are, where you live, and other information from the census results. Here's how the Census Bureau plans to combat that. New for the 2020 census, the U.S. Census Bureau will be using a process called differential privacy to inject "statistical noise" into the…
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Understanding the 2020 Census Disclosure Avoidance Policy. A.K.A. “Differential Privacy”

Understanding the 2020 Census Disclosure Avoidance Policy. A.K.A. “Differential Privacy”

By Michelle DavisSep 01, 2020
The Census Bureau is mandated by the U.S. constitution to complete a count of the population every decade. Few realize however, that Title 13, Sec. 9 of the U.S. Code also requires the Bureau to "keep personally identifiable information confidential for 72 years." With the growth of Big Data, this privacy mandate has become a much more complicated task, thanks to "database reconstruction," a method of partially reconstructing a private dataset from public aggregate information. Consider the well-known example below of how one data scientist obtained former Governor William Weld's medical history from aggregate data released to the Massachusetts Group…
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Watch: A Mathematical Measurement of Partisan Gerrymandering

Watch: A Mathematical Measurement of Partisan Gerrymandering

By Michelle DavisFeb 05, 2019
. Researchers at Duke University do a good job explaining their quantitative analysis of North Carolina’s congressional redistricting maps in lay terms. In this video they present fairly solid statistical proof that partisan gerrymandering indeed can be sniffed out by statistical algorithms that show when a map is the result of intentional and precise human design, and not mere adjustment of the boundaries that are already there. Of course, this only proves that partisan gerrymandering exists, and it is a helpful measure of the stark differences in the election results between a map drawn with precise political motivations versus on…
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