Michael Li
I'm an industrial engineer interested in using statistics and software to solve manufacturing problems. I enjoy thinking about complex systems, finding improvements using statistics, and developing software solutions.
Experience
RefleXion Medical
- Supported calibration and acceptance testing of radiotherapy systems
- Worked crossfunctionally with R&D to investigate nonconformances, determine root cause, and implement corrective actions
- Applied Design of Experiments (DOE) and multivariate regression to model mechanical factors affecting beam alignment, resulting in improved alignment accuracy.
- Developed a Python regression and visualization tool (PySide + Plotly) to optimize beam alignment, allowing for tighter specs and reduced process time by 50%.
Project
AI Database Query
Use AI to generate SQL queries based on prompts. Identifies relevant tables using a vector database to provide additional context.
Pandas to Pydantic
A simple library for converting pandas dataframes into pydantic models.
Blog
Confidence Intervals and Hypothesis Tests on Standard Deviation
How to calculate the confidence interval of standard deviation. How to run hypothesis tests on standard deviation.
Standard Deviation of Standard Deviation
How to calculate the standard deviation of standard deviation. Formulas for standard error of sample sample standard deviation and variance.
Visualizing Simpy using Textual
How to use Textual to visualize and animate Simpy discrete event simulations in Python. Simulating a machine shop example.