Josep Ferrer

KDnuggets AI Content Specialist

Josep Ferrer is an analytics engineer from Barcelona. He graduated in physics engineering and is currently working in the data science field applied to human mobility. He is a part-time content creator focused on data science and technology. Josep writes on all things AI, covering the application of the ongoing explosion in the field.

Collecting Real-Time Data with APIs: A Hands-On Guide Using Python

By Josep Ferrer, KDnuggets AI Content Specialist on October 29, 2025 in Python
In this article, we’ll break down the essentials of using APIs for data collection — why they matter, how they work, and how to get started with them in Python.
Pandas: Advanced GroupBy Techniques for Complex Aggregations

By Josep Ferrer, KDnuggets AI Content Specialist on October 21, 2025 in Python
This article will guide you through advanced grouping techniques using the Pandas library to handle these complex scenarios effectively.
The Lazy Data Scientist’s Guide to Exploratory Data Analysis

By Josep Ferrer, KDnuggets AI Content Specialist on October 7, 2025 in Data Science
How to speed up exploratory data analysis with Python’s automated tools and get 80% of the insights in 20% of the time.
Weights & Biases: A KDnuggets Crash Course

By Josep Ferrer, KDnuggets AI Content Specialist on October 6, 2025 in Machine Learning
A hands-on guide to tracking experiments, versioning models, and keeping your ML projects reproducible with Weights & Biases.
What Is Cross-Validation? A Plain English Guide with Diagrams

By Josep Ferrer, KDnuggets AI Content Specialist on October 1, 2025 in Machine Learning
In this article, we're going to break down cross-validation in plain English, provide reasons why it is more reliable than the hold-out method, and demonstrate how to use it with basic code and images.
The Lazy Data Scientist’s Guide to Time Series Forecasting

By Josep Ferrer, KDnuggets AI Content Specialist on September 16, 2025 in Machine Learning
Why waste weeks tuning models when you can forecast your data with Python in minutes?
Create an Analytics Dashboard for Your Google Sheets

By Josep Ferrer, KDnuggets AI Content Specialist on July 28, 2025 in Data Science
In this article, I will take you through how to build a basic dashboard using Google Sheets.
Building End-to-End Data Pipelines: From Data Ingestion to Analysis

By Josep Ferrer, KDnuggets AI Content Specialist on July 15, 2025 in Data Science
Check out this practical guide to designing scalable, reliable, and insight-driven data infrastructure.
Automatically Build AI Workflows with Magical AI

By Josep Ferrer, KDnuggets AI Content Specialist on June 16, 2025 in Artificial Intelligence
Find out how to streamline tasks, save time, and boost productivity with a no-code AI assistant.
Integrating DuckDB & Python: An Analytics Guide

By Josep Ferrer, KDnuggets AI Content Specialist on June 10, 2025 in Python
Learn how to run lightning-fast SQL queries on local files with ease.

Josep Ferrer

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