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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.
Are Business Intelligence Tools Still Worth It?
Business Intelligence forms the back-bone of decision making in an ever-growing number of organisations in the world today. More than ever, organisations need to be able to make fast decisions to changes in the market. Unfortunately, many businesses do not have a system that allows them to obtain the insights they need to do this. […]
Principal Component Analysis in Python
In this week’s data science project, I apply principal component analysis to a dataset based around hospital mortality using python. The dataset is extensive, containing over 50 variables on demographic characteristics, vital signs, and other measurements taken in the lab. This should be a perfect use-case for dimensionality reduction with PCA. What is Principal Component […]
K-Means Clustering in Python: Customer Data Segmentation
In this data science project, I tackle the problem of data segmentation or clustering, specifically applied to customer data. There are a couple of different algorithms to choose from when clustering your data depending on your requirements and inputs. However, K-Means clustering is one of the most popular methods in machine learning and is the […]
The Secret To Doing Less as a Data Scientist: Automate Your Tasks With Python
Task automation has become like a secret weapon as a data scientist. My only regret is not getting started with automation sooner. In the past, I have felt intimidated by the process of automation because I always thought it was an intensive, tedious process. I have come to learn that automation has done the exact […]