James Verbus

AI systems for
adversarial settings.

At LinkedIn, I worked on automation detection and AI-generated profile photos, and built the Spark/Scala isolation-forest library.

James Verbus working on the LUX dark matter detector
LUX dark matter detector, Sanford Underground Research Facility.

What I work on

Representative work

Career

Background

At LinkedIn, most recently as a Senior Staff Machine Learning Engineer, I built production detection systems for Trust. I created and open-sourced the Spark/Scala isolation-forest library and led AI productivity work for Trust engineering teams.

Before LinkedIn, I earned my Ph.D. in physics at Brown working on LUX, one of the world's most sensitive dark-matter detectors. The common thread is practical measurement: extracting weak signals from noisy data, checking uncertainty, and making systems useful when ground truth is incomplete.

Projects

Isolation forest project logo

Open Source

Isolation Forest

Distributed Isolation Forest and Extended Isolation Forest for Spark, with ONNX export for standard Isolation Forest models.

Research / Publications

Talks / Videos

Workshop video thumbnail for LLM and RAG workshop

2025

Brown AI Winter School 2025: Exploring LLMs and RAG

A 2.5 hour interactive workshop at the 2025 AI Winter School, hosted by the Center for the Fundamental Physics of the Universe at Brown University.

AI Winter School 2025, Center for the Fundamental Physics of the Universe at Brown University.

Contact

Questions or corrections? Email me.

Email me