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My name is Joleen, I’m a data scientist and writer and I use this blog to share my passion for data science and statistics.
Blog Every week, I post new articles on data science, statistics and business intelligence. Here are my latest articles.
Approaching data science like a team sport is still a relatively new concept in the field today. In the past, data scientists have typically worked alone as ‘unicorns’ and have been expected to wear multiple hats. However, more and more companies are building teams that contain a mix of roles from BI experts, data analysts, […]
You don’t need a fancy PC to get started with data science and machine learning. In fact, you can run all your code in cloud-based notebooks without even worrying about setting up an environment locally. Even if you’re new to data science, you’ve probably heard of Jupyter Notebooks. It has become the number 1 way […]
Gartner released their top strategic technology trends for 2022 and Decision Intelligence was one of them. They described it as “a practical approach to improve organisational decision making”. It was the first time I had ever come across the term but it definitely got my attention. I wanted to find out more about it and […]
What is Stochastic Gradient Descent? Stochastic gradient descent is an optimisation technique, and not a machine learning model. It is a method that allow us to efficiently train a machine learning model on large amounts of data. The word ‘descent’ gives the purpose of SGD away – to minimise a cost (or loss) function. For […]