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Trove to IPFS
IPFS is a peer-to-peer storage network that promotes the resiliency, immutability, and auditability of data. This README explains code written to shepherd the files from janky external USB drives to IPFS.
Violence in Blue: The 2020 Update
HRDAG has refreshed a 2016 Granta article about homicides committed by police in the United States.
Lies, Damned Lies and Official Statistics
This essay in the Health and Human Rights Journal addresses attempts to undermine Covid-19 data collection.
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 ...
Lessons at HRDAG: Making More Syrian Records Usable
If we could glean key missing information from those fields, we would be able to use more records.
Film: Solving for X
Solving for X documents Patrick's team as they travel to Guatemala, Kosovo, and Liberia, helping human rights supporters apply sophisticated computer analysis to human rights events.
Home Alt
<iframe src="https://www.youtube.com/embed/MfThopD7L1Y?list=PL8mc5VYrQH_Nx9jSWF2rYEgQhHyVobk6s" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"></iframe>Kristian Lum, lead statistician at HRDAG | <em>Predictive Policing: Bias In, Bias Out</em> | 56 mins
Tech Note – improving LLM-driven info extraction
A follow-up chapter exploring recent advancements in LLM technology and extraction strategies.
Tech Note – using LLMs for structured info extraction
This post introduces the methodology of the Innocence Discovery Lab, a collaboration between IPNO and HRDAG.
How Causal Analysis Confirmed Impact of Cash Bail on Verdicts
Causal inference methods show that for indigent clients, money bail increases their likelihood of a guilty conviction.
How Data Scraping Provides Insights into Immigrant Arrests
In Washington State, some law enforcement officers illegally tip off ICE and CBP for civil immigration arrests. HRDAG helped identify where the problematic practices occurred.
Introducing Structural Zero, HRDAG’s New Monthly Newsletter
I want to invite you to check out HRDAG's new newsletter, Structural Zero. It’s written by me and my colleagues Megan Price, Bailey Passmore, Tarak Shah, and Maria Gargiulo. Each month, one of us will write about a mathematical or scientific concept we use in our work and how it can be applied to understanding the world. We’ll offer some of the real world examples we've come across, including the times when we or our partners worked to collect and process data in very dangerous situations. We’ll talk about some of the key insights we've uncovered through our work, and the cultural context for understanding what those insights mean.
You ...
HRDAG Adds Three New Board Members
HRDAG's advisory board has added three new members.
Welcoming Our New HRDAG Data Scientist
Bailey joined HRDAG as a data scientist in 2022.
The Case Against a Golden Key
Patrick Ball (2016). The case against a golden key. Foreign Affairs. September 14, 2016. ©2016 Council on Foreign Relations, Inc. All Rights Reserved.
Patrick Ball (2016). The case against a golden key. Foreign Affairs. September 14, 2016. ©2016 Council on Foreign Relations, Inc. All Rights Reserved.
On the Quantification of Horror: Field Notes on Statistical Analysis of Human Rights Violations.
Patrick Ball. “On the Quantification of Horror: Field Notes on Statistical Analysis of Human Rights Violations.” in Repression and Mobilization, ed. by Christian Davenport, Hank Johnston, and Carol Mueller. Minneapolis: U Minnesota P. 2005.
Using Quantitative Data to Assess Conflict-Related Sexual Violence in Colombia: Challenges and Opportunities.
Françoise Roth, Tamy Guberek, and Amelia Hoover Green. “Using Quantitative Data to Assess Conflict-Related Sexual Violence in Colombia: Challenges and Opportunities.” A report by the Benetech Human Rights Program and Corporación Punto de Vista. 22 March 2011. (Spanish.) © 2011 Benetech. Creative Commons BY-NC-SA.
A Statistical Analysis of the Guatemalan National Police Archive: Searching for Documentation of Human Rights Abuses.
Megan E. Price, Tamy Guberek, Daniel R. Guzmán, Paul Zador, Gary M. Shapiro (2009). “A Statistical Analysis of the Guatemalan National Police Archive: Searchingfor Documentation of Human Rights Abuses.”In JSM Proceedings, Survey Research Methods Section. Alexandria, VA: American Statistical Association.