Bicycle touring blog

Every few years I go on bike tours. That's pretty much the only time I keep a blog.

Southwest Day 37: Mather Campground to Flagstaff

September 29, 2021

Southwest Day 35-36: Desert View to Mather Campground

September 27-28, 2021


Gardening photos


Garden photos from 2019


Garden photos from 2018


Garden photos from 2017


Garden photos from 2016


Statistics, ML, and/or data science

Though I don't keep a particularly complete professional website, here's a bit of information about my experience, and some links to recent papers I've written. PDF resume available here.

Recent Publications

Expanding search in the space of empirical ML

As researchers and practitioners of applied machine learning, we are given a set of requirements on the problem to be solved, the …

Formative Essay Feedback Using Predictive Scoring Models

A major component of secondary education is learning to write effectively, a skill which is bolstered by repeated practice with …



Data Science Manager

Duo Security (part of Cisco)

Oct 2019 – Present Pittsburgh, PA
Leading a team of talented and creative data scientists working to use data more effectively for our customers and our business.

Senior Data Scientist

Duo Security (part of Cisco)

Apr 2018 – Oct 2019 Pittsburgh, PA
Leveraging data and science to support usable security solutions.

Principal Research Scientist


Aug 2015 – Mar 2018 Pittsburgh, PA
Research and development for the machine learning powering Revision Assistant, a tool that provides automated formative essay feedback to student writers.

Research Statistican

CERT, Software Engineering Institute

Oct 2013 – Aug 2015 Pittsburgh, PA
Government funded computer security research.

Bronwyn Woods

Data about plants riding bicycles?

Duo Security

Welcome to my digital collection of various interests. What it lacks in focus it makes up for in pictures of plants.


  • Gardening
  • Bicycle tours
  • Learning with data


  • PhD in Statistics and Neural Computation, 2013

    Carnegie Mellon University

  • BA Computer Science and Linguistics, 2007

    Swarthmore College