Mastering Playwright for Modern Browser Automation

December 3, 2024 | azhar

Introduction The tools developers and testers use to interact with the web are evolving. The journey has been revolutionary, from Selenium, first released in the early 2000s, to the contemporary frameworks that handle today’s dynamic and intricate web applications. In the middle of these advancements, Playwright has become a ...
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Scraping and Not Modified Responses

December 3, 2024 | Python - datawookie

In a previous post I looked at the HTTP request headers used to manage browser caching. In this post I’ll look at a real world example. It’s a rather deep dive into something that’s actually quite simple. However, I find it helpful for my understanding to pick ...
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Understanding Why Sklearn PCA Differs from Scratch Implementations

December 2, 2024 | Andrea Rekasi

Data scientists often face a puzzling challenge. Their carefully crafted Principal Component Analysis (PCA) implementation gives different results compared to scikit-learn’s version. These differences create confusion and make debugging harder, even when both implementations appear mathematically sound. PCA is a significant dimensionality reduction technique in machine learning that helps ...
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How to calculate Z-Scores in Python

November 28, 2024 | Ponne, Bruno

If you’ve worked with statistical data, you’ve likely encountered z-scores. A z-score measures how far a data point is from the mean, expressed in terms of standard deviations. It helps identify outliers and compare data distributions, making it a vital tool in data science. In this guide, we’...
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Big-Scale Data Dashboards With Observable Framework

November 27, 2024 | Filip Stachura

If your organization is looking to build dynamic and interactive dashboards with a strong emphasis on performance or large scale, the Observable Framework could be an ideal fit. This article introduces the framework, its core features, and real-world use cases to illustrate how it can help your data science team ...
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