Tor Anomaly Detection

Rewrite & Demo Visualization

Select a country from the drop down to get started.

Click on a green or red dot in a graph to get links to possible censorship events on that date.
This is a rewrite and new interactive data-visualization of the Tor projects anomaly-based censorship-detection system. I took on this side-project after hearing that multiple statisticians had attempted to update the code, but had given up because the existing code-base was complex and badly documented. I focused on making the existing code cleaner and comprehensively documented. I used the high-performance data analysis library pandas in the rewrite which speed up the data analysis considerably and allowed me to integrate previously external “preparation” scripts written in R directly into the code.