Technical Deep Dives
Sub-Second Search Across 2.1 Million Documents
TLDR A fast full-text search system built into the database (known technically as a GIN-indexed tsvector) enables sub-second queries across 2.1 million...
Technical Deep Dives
4 investigations
Technical Deep Dives
Detecting Missing Documents With a World War II Statistical Method
TLDR A World War II-era statistical method for estimating how many items exist based on the serial numbers you have seen (known as the German Tank Problem) is...
Technical Deep Dives
The Many Rodgers: How Entity Resolution Handles Scanning Chaos
TLDR A software tool that uses statistics to decide which database records refer to the same person (called Splink) merged eight or more scanning variants of...
Technical Deep Dives
Why Nothing in This Corpus Is a Finding
TLDR Every analytical result in the pipeline receives a confidence grade from a military-origin system for rating how reliable a source is and how credible the...