Helena

I built an A/B test duration calculator in a Jupyter notebook. It worked great locally: plug in your baseline conversion rate, expected lift, and daily traffic, and it would tell you exactly how many days to run your test. The problem was it lived entirely on my machine, which meant it was useful to …

How I built a persona-based LLM chatbot with self-evaluation.

Here we will go through a supermarket transaction data to understand better our customer segments and their purchasing behaviors. The data and task is from a data analytics virtual work experience program I completed with Forage and Quantium, a leading data science and AI Firm with a track record of …