About / Portfolio

My name is Jerzy Wieczorek. I’m a statistician with the U.S. Census Bureau, working primarily in small area estimation and Bayesian statistics, and using statistics in humanitarian and volunteer work. I’m also interested in languages and linguistics, education and teaching, cognition, etc.

All opinions expressed on this blog are my own and are not intended to represent those of the U.S. Census Bureau.

In addition to this blog, I post on Twitter as @civilstat.

Curriculum Vitae (CV) (pdf)

Research

• Small area estimation with a zero-inflated beta model, at the U.S. Census Bureau
• Highway bottleneck identification, at Portland State University’s Intelligent Transportation Systems Lab
• Minimum Kolmogorov-Smirnov Estimation (MKSE) for right-censored data, at Portland State University’s Department of Mathematics and Statistics

Visualization

• Animated maps of election campaign travel using ggplot2 in R
• Interactively mapping significant differences, in R and in JavaScript
• Animation of recurring highway bottlenecks near Portland, OR, in MATLAB, for the ITS Lab
• Interface metaphors for network management software, at Olin College

Statistical volunteering

• Pro bono consulting on health and human rights survey data analysis, for StatAid and Lawry Research Associates International [journal articles in review]
• Website co-chair, for Statistics Without Borders
• DataKind “datadive” participant and continuing DataCorps volunteer, for DC Action for Children [datadive writeup; O'Reilly Visualization of the Week; final visualization; final writeup]

Teaching

• Workshops on “R 101,” “R Graphics,” and “Computer Applications for Small Area Estimation” at the U.S. Census Bureau [materials to be posted]
• Beginning Polish classes at the Global Language Network

Personal

• Cake decorating
• History/sociology of the accordion [undergraduate paper; slides from DC Nerd Nite]
• Rubik’s cubes [undergraduate paper and slides from MAA section meeting; Ultimate Solution to Megaminx]