Polars Project: A-to-Z Data Cleaning (The 2026 Guide)
You’ve learned all the individual Polars methods. Now, let’s put them together in one “A-to-Z” project to clean a messy dataset and look at effective…
AI Project: Build a Recommender System with Hugging Face datasets
Recommender systems are the engine of the modern internet (Netflix, Amazon, Spotify). In this post, we’ll introduce a Hugging Face Recommender System and explore how…
Interactive Polars: Plotting with hvplot (2026 Guide)
Matplotlib and Seaborn create static, non-interactive images. In 2026, data exploration is interactive. hvplot is a library that provides a .hvplot() method for Pandas and…
AI Project: Audio Classification with Hugging Face (Environmental Sounds)
We’ve used Whisper to transcribe speech, but what if you just want to know what a sound is? Hugging Face Audio Classification is a powerful…
Polars Window Functions: The over() Method (SQL Partition By)
We’ve used groupby().agg(), which collapses your data (e.g., 100 rows become 3 rows). In contrast, Polars window functions allow you to compute calculations across groups…
A Deep Dive into Hugging Face Tokenizers (WordPiece & BPE)
We’ve used tokenizers to prepare data for AI models. But how do they work? If you’re interested in a deeper understanding, we’ll explore how Hugging…
Combining DataFrames in Polars: The concat Method
We’ve used .join() to combine data based on a key (like a SQL JOIN). But what if you just want to stack two DataFrames on…
AI Project: Visual Question Answering (VQA) with Hugging Face
This is a true “2026 Vision” project. Hugging Face VQA is at the core of what we’re building—we’re giving our AI eyes and a brain….
A Guide to Polars Data Types (pl.dtypes)
In Polars, choosing the correct data type (or “dtype”) is the most important step for performance and memory usage. Using a massive Int64 for a…
A Deep Dive into the Hugging Face datasets Library
This article serves as a Hugging Face datasets guide. We’ve used the datasets library to load data for fine-tuning, but what is it? It’s a…
