Learn how to create an object-oriented approach to compare and evaluate the performance of machine learning models using cross-validation and results visualization — In this article, we will look at how to use Python to compare and evaluate the performance of machine learning models. We will use cross-validation with Sklearn to test the models and Matplotlib to display the results. The main motivation for doing this is to have a clear and accurate…

Pydantic is a Python library that allows us to structure and validate data in an efficient way — Data modeling is an important aspect of any data-driven project, and choosing the right tools and techniques can make a big difference in the quality and reliability of your models. One tool that you might want to consider is Pydantic, a Python library that provides a simple and effective way…

A guide to data visualization and the principles that underpin it. Create effective charts and storytelling to improve visual communication and presentation skills — It’s rare to find someone good at effectively communicating the meaning of data. On social media, I often see charts that look beautiful and clean and that evoke the “wow effect”, but which upon closer inspection fail to communicate the right meaning and the interpretation of the underlying data.

Cross-validation is the first technique to use to avoid overfitting and data leakage when we want to train a predictive model on our data. Its function is essential as it allows us to test functions and logics on our data in a safe way — namely, avoiding that these processes…

Kickstart your understanding of one of TensorFlow’s most powerful set of tools for deep learning — TensorFlow is the framework created by Google that allows machine learning practitioners to create deep learning models and is often the first solution that is proposed to analysts who approach deep learning for the first time. The reason is to be found in the simplicity and intuitiveness of the TensorFlow…

In this article I want to present the reader with a holistic view of what the data science process to me is. This process is often mentioned in industry educational material, such as online courses and manuals, and is the starting point for the professional who wants to take his…

Learn how to use a simple script to tag textual content with fuzzy logic — The term fuzzy logic refers to all those rules and functions that apply a heuristic based on the approximation of truth. In computer science, fuzzy logic is meant to help provide a degree of truth rather than actual truth. It is an approach that allow us to answer inaccurately to…

A simple and effective approach to text similarity with TF-IDF and Pandas — Calculating the similarity between two pieces of text is a very useful activity in the field of data mining and natural language processing (NLP). This allows both to isolate anomalies and diagnose for specific problems, for example very similar or very different texts on a blog, or to group similar…