Learning & Building in Data Science Sharing my journey as I pave my own path through the world of data science
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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.
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 […]
Since data science is such a new profession, there is a lot of confusion and uncertainty around job requirements and qualifications. A common question that gets asked is: what kind of qualifications are necessary to get a job in data science and is a Masters degree or PhD really worth it? I wanted to share […]
I have a definite love-hate relationship with productivity. To me, being productive means that I am actively working towards my goals and dreams. However, productivity is not something I can objectively obtain every day. Instead, it ebbs and flows based on so many factors such as diet, sleep, sickness, weather, connection, conflict, my own internal […]
Reading a textbook for self-study is very different to school or university. Back when I was in school, I read the textbook for the sole purpose of doing well on a test and it didn’t really matter if I couldn’t apply the concepts I was learning about. However, I have come to realise that this […]