work Auditing Algorithmic Bias on Twitter Sock-puppet audits of Twitter's personalized timeline, measuring how the algorithm shapes what, and whom, users are exposed to compared to a chronological feed. AT Protocol Infrastructure Health Analyzing the activity and geographic distribution of Personal Data Servers (PDSes) to assess how truly decentralized the Bluesky/AT Protocol ecosystem is. Bluesky Feed Toxicity Analysis Demonstrating the importance of context in assessing online toxicity, with an ML pipeline for scoring and analyzing posts from Bluesky curated feeds. Feed Discovery on Bluesky A "feed of feeds" — a custom Bluesky feed generator that uses a multi-armed bandit to recommend other people's feeds. Toxicity Model CI/CD An end-to-end pipeline for training, evaluating, promoting, and serving a text toxicity model behind a live scoring API.