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The case against propensity modelling

Propensity models look for patterns in past data to estimate how likely someone is to do something (buy, cancel, or upgrade). It’s a deceptively simple idea: train a model…
Nov 3, 2025
Gabrielle Josling
 

Everything breaks eventually: data science lessons I’ve learned the hard way

A few years in data science will give you strong opinions about strange things: Microsoft Excel, daylight saving time, unit tests. The beauty of this job is that things can…
Oct 8, 2025
Gabrielle Josling
 

The hidden work of data science projects

You’ve probably heard the phrase “80% of data science is data cleaning.” It’s not totally wrong, but it is incomplete. While I agree that data science often involves…
Oct 2, 2025
Gabrielle Josling

ScoMo’s last hurrah?

When I started collecting and analysing Australian Prime Minister Scott Morrison’s speeches and interview transcripts over a year ago for a blog post, I hardly believed he…
May 21, 2022
Gabrielle Josling

Automated web scraping using GitLab CI/CD

When working on data projects that rely on regularly updated sources, it’s easy to end up with a manual refresh process — running a series of scripts locally, saving the…
Jul 19, 2021
Gabrielle Josling

The Prime Minister’s speech: A textual analysis

Since becoming Prime Minister in 2018, Scott Morrison has spoken publicly almost every day. Transcripts of all speeches, interviews, and press conferences are available on…
Apr 4, 2021
Gabrielle Josling
 

UI/UX and data science

In this post I’ll talk about what I learned from two courses I recently took on Coursera: Visual Elements of User Interface Design and UX Design Fundamentals (both taught by…
Oct 26, 2020
Gabrielle Josling

Unsupervised learning and lessons from the science of personality testing

After completing a personality test as part of a job application, I recently became interested in the science and statistics of personality testing. This is part of the…
May 25, 2020
Gabrielle Josling
 

A deep dive into short circuit evaluation

One consequence of not having ever learned programming in any systematic way is that sometimes I come across a very unexpected behaviour that I don’t really have the…
Feb 28, 2020
Gabrielle Josling
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