Choose category:
My Journey as a Data Science Blogger
Μy Background My Studies Back in 2001, I entered university to study Statistics. During my first year, I ran my
How to Create a Powerful TF-IDF Keyword Research Tool
We are at the age of digital marketing and now the words are more important than ever. One of the
A High-Level Introduction to Word Embeddings
This post is a high-level introduction to Word Embeddings made by the Predictive Hacks Team (Billy & George). A common representation of
Simpson’s Paradox and Misleading Statistical Inference
Back in 2001 when I entered university to study Statistics, our professor told us that “Statistics is a perfect way
How to Become a Digital Nomad as a Data Scientist
Eight months ago, when the company I work for decided to close all our offices, making from work from home
Reshape Pandas Data Frames
We will provide some examples of how we can reshape Pandas data frames based on our needs. We want to
How to Test for Randomness
I have been contacted by many people asking me to predict the outcome of some events that in theory are
How to Scrape Data from Euroleague
We will provide you an example of how you can get the results of the Euroleague games in a structured
How to Build a Predictive Soccer Model
We will provide you an example of how you can start building your predictive sport model, specifically for soccer, but
Skewness and Kurtosis in Statistics
Most commonly a distribution is described by its mean and variance which are the first and second moments respectively. Another
Hack: How to create GIF Images in Python
We will show how you can create GIF images in Python from a set of images. We will work with
Portfolio Optimization in Python
We will show how you can build a diversified portfolio that satisfies specific constraints. For this tutorial, we will build
Undersampling by Groups in R
When we are dealing with unbalanced classes in Machine Learning projects there are many approaches that you can follow. Just
How to get a Data Science Job without Experience
What is “Working Experience” in practice? Let’s assume that you are a candidate who has recently graduated from the University
How to search all Tables for a column name in PostgreSQL
We’ve all been in the situation of having a chaotic database and trying to find the data that we will
Excess Deaths during the 1st Wave of Covid-19
Abstract Our goal is to provide some summary statistics of deaths across countries during the 1st Wave of Covid-19 and
Tidyverse Tips
I have found the following commands quite useful during the EDA part of any Data Science project. We will work
Pandas GroupBy Tips
This post is a short tutorial in Pandas GroupBy. As always we will work with examples. Let’s create a dummy
Docker + Flask | Dockerizing a Python API
Docker containers are one of the hottest trends in software development right now. Not only it makes it easier to
How to Scrape Google Results for Free Using Python
There are a lot of paid services that are providing google results and it’s for a reason. In the right
Object Detection with Rekognition on Images
We will provide an example of how you can get the image labels using the AWS Rekognition. If you are
