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Syria
On the heels of the Arab Spring revolutions, which began in December 2010, armed conflicts began in Syria in March 2011. What started as protests demanding that President Bashar al-Assad resign resulted in the deployment of the Syrian Army to stop the uprising. Since then, violent conflict has been raging in Syria. Amid this continuing violence and humanitarian crisis, local human rights activists and citizen journalists risk their lives to document human rights violations. The grave challenges they face are compounded by the regime's active suppression of information flow out of the country. As a result, there is considerable uncertainty about the ...
Guatemala
Collecting and Protecting Human Rights Data in Guatemala (1991-2013)
In 1996, a peace accord brokered by the United Nations ended 36 years of internal armed conflict in Guatemala. During the hostilities, non-governmental organizations asked for technical support from the scientific community in the project to gather the experiences of witnesses and victims in databases.
From 1993 to 1999 Dr. Patrick Ball, then at the American Association for the Advancement of Science (AAAS), worked with the International Center for Human Rights Research in Guatemala (CIIDH) to collect and organize evidence of more than 43,000 human rights violations. The ...
Welcome!
As of today, the Human Rights Data Analysis Group (HRDAG) is an independent* non-profit! It's been a long time coming, and we're delighted to have gotten to this point. HRDAG is a non-profit, non-partisan organization that applies rigorous science to the analysis of human rights violations around the world; for more information, see our About Us page.
Benetech has spun out the scientific and statistical part of the Human Rights Program to HRDAG. The spinout includes (as staff) me -- Patrick Ball -- and Dr Megan Price, as well as our many part-time scientific and field consultants (a list is here). The software and technology component of our work -- ...
HRDAG Welcomes New Data Science Fellow
Our newest Data Science Fellow, Will Taylor, is currently a doctoral student in political science and public policy at the University of Michigan.
Donate to HRDAG with a Donor Advised Fund
HRDAG is pleased to accept donations to our nonprofit via Donor Advised Funds. We’ve published step-by-step directions to make donating through a DAF simple and fast. Check out the directions now or contact us at info@hrdag.org if you have any questions.
October 9 is Donor Advised Fund Day—a recently established awareness day that encourages DAF holders to activate their funds by recommending charities to receive support. You can participate by donating to HRDAG via a Donor Advised Fund or read on to learn more.
What is a Donor Advised Fund?
A Donor-Advised Fund (DAF) is an easy, flexible way to support charities while taking advantage of ...
Tech Note: Chicago Missing Persons
Our team was able to identify over 50 complaints related to missing persons cases.
HRDAG Names New Board Member William Isaac
William Isaac joins HRDAG's Advisory Board, bringing expertise in fairness and artificial intelligence.
How Machine Learning Makes Visible Gender-Based Violence by Police
Sexual misconduct by police sometimes gets buried through official coding procedures. In Chicago, HRDAG processed police misconduct documents to give visibility to allegations that would otherwise be lost.
How Structuring Data Unburies Critical Louisiana Police Misconduct Data
In Orleans Parish, Louisiana, home of New Orleans, 78 percent of wrongful convictions have been linked to a police officer’s failure to share exculpatory evidence with the defense. This is a rate more than double the national average.But while these actions, or any misconduct, by law enforcement personnel may be recorded officially, the data may be difficult to use or find. Depending on a parish’s resources, the data may be archived in a non-digital format, for example, on paper.
Innocence Project New Orleans (IPNO) has as its mission the overturning of wrongful convictions in Louisiana. A police officer involved in a wrongful conviction may ...
HRDAG Welcomes New Data Science Fellow
Alanna Flores joins HRDAG for the summer as a Data Science Fellow.
Scatter and keep working
Structural Zero Issue 02
July 17, 2025
Part Two of Our Three Part “Gathering the Data” Series. Read part one.
As a statistician, I spend most of my days working at a computer.
Because I work with data about human rights violations, I go to places where I can document evidence of crimes—like disappearances, killings, and torture. So while I may just be working at a computer, those computers can be in places where there is still the potential for violence to emerge.
Over the years, I’ve learned a lot about how to work in countries emerging from conflict. Those lessons seem especially applicable today, ...
Without Encryption, My Work Wouldn’t Be Possible
Structural Zero Issue 03
August 24, 2025
Part Three of Our Three-Part “Gathering the Data” Series. Read part one and part two.
In computer security, “security” is always relative to something. What are we actually defending against, and how are we doing it? This is our “threat model.”
My colleagues and I have been using scientific tools to analyze evidence of human rights abuses, including using statistics to uncover mass graves in Mexico and analyzing under-reported police homicides in the United States.
Our work isn’t always popular. It can infuriate those in power who want to cover up incriminating truths about the ...
Opportunities
At HRDAG, we’re creating an exceptional team that will put our mission into action. We hope you'll join us.
We don’t have any open positions at the moment, but we’re always eager to stay in touch with people who have a passion for human rights and data science.
Please keep in touch by signing up for our newsletters and following us on Twitter @hrdag.
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Uncertainty in COVID Fatality Rates
In this Granta article, HRDAG explains that neither the infectiousness nor the deadliness of the disease is set in stone.
New Estimate Of Killings By Police Is Way Higher — And Still Too Low
Carl Bialik of 538 Politics interviews HRDAG executive director Patrick Ball in an article about the recently released Bureau of Justice Statistics report about the number of annual police killings, both reported and unreported. As Bialik writes, this is a math puzzle with real consequences. Here's an excerpt.
Patrick Ball, co-author of the critique and executive director of the Human Rights Data Analysis Group, said it’s not the BJS’s fault that it underestimated the number. That it estimated it at all was an important step, he said. Government agencies don’t all audit their own data or undertake the difficult task of matching records that ...
Why Collecting Data In Conflict Zones Is Invaluable—And Nearly Impossible
HRDAG's work in Kosovo and in the Guatemalan trial of General José Efraín Ríos Montt is discussed in this article. Megan Price, HRDAG's director of research, is quoted. “There is a wide variety of things that could be considered data,” she says.
From the story:
Price’s main data analysis tool requires fitting a model to the data that ends up in her lap. That way, she can see whether there are gaps in the data and what more needs to be included. The method, called multiple systems estimation analysis, lets Price look at patterns across lists of data, for example, lists of victims. The resulting model reveals how much data is missing, to a ...
CIIDH Data – Variables List
Version date: 2000.01.29
Current version: ATV20.1
Patrick Ball & Herbert F. Spirer
Below are listed the 19 files that constitute the CIIDH database. We have noted those that include data that might be analytically useful in future versions of ATV. File names and brief definitions are in bold, and variable summaries are in bulleted points.
CXTOV2 (Context; links to VLCNV2)
Additional detail on geographic location of case
Narrative summary
CXTOV2ex (Context extension; links to CXTOV2)
Fine breakdown on the age category & sex of anonymous victims
CXTOV2lg (Context extension; links to CXTOV2)
Legal procedures taken on behalf of the ...
Big Data Predictive Analytics Comes to Academic and Nonprofit Institutions to Fuel Innovation
"Revolution Analytics will allow HRDAG to handle bigger data sets and leverage the power of R to accomplish this goal and uncover the truth." Director of Research Megan Price is quoted.
REVOLUTION ANALYTICS
Press release
February 4, 2014
Link to press release
Back to Press Room