Three stories about the data career journey “The number 12 is considered a cosmic number — marking the 12 months, the 12 signs of the zodiac, and the 12 stations of the Moon and the Sun” [Photo by Michael Skok on Unsplash]In my previous position, I created end-of-year reports for my business colleagues and CEOs.…

A deep exploration of TiDE, its implementation using Darts and a real life use case comparison with DeepAR (a Transformer architecture) As industries continue to evolve, the importance of an accurate forecasting becomes a non-negotiable asset wether you work in e-commerce, healthcare, retail or even in agriculture. The importance of being able to foresee what…

Data Visualization, Data Storytelling Simplify your overwhelmed charts by using slope charts: a tutorial in Python Altair Image by AuthorWe may plot charts to include as many concepts as possible in our visualization. As a result, our chart could be difficult to read and distracting. For this reason, before plotting anything, sit in your chair…

During a road trip we discussed how this tool was interesting but not necessarily useful. My friend could plug in numbers and see what happened, but that didn’t help make staffing decisions any easier, as it was basically educated trial and error. What would be more helpful was a system where you could set a…

A step-by-step walkthrough of inter-participant and intra-participant classification performed on wearable sensor data of runners Image by authorRunning data collected using wearable sensors can provide insights about a runner’s performance and overall technique. The data that comes from these sensors are usually time series by nature. This tutorial runs through a fatigue detection task where…

How can we think about thinking in the simplest way possible? Opening Pandora’s box (image by author)In the 17th century, René Descartes introduced a relatively new idea — the dictum “cogito ergo sum” (“I think, therefore I am”). This simple formulation served as the basis of Western philosophy and defined for centuries our ideas on…

How cloud computing and analytics engineering forced the transition from ETL to ELT Image generated via DALL-EETL (Extract-Transform-Load) and ELT (Extract-Load-Transform) are two terms commonly used in the realm of Data Engineering and more specifically in the context of data ingestion and transformation. While these terms are often used interchangeably, they refer to slightly different…

How to improve the performance of your Retrieval-Augmented Generation (RAG) pipeline with these “hyperparameters” and tuning strategies Tuning Strategies for Retrieval-Augmented Generation ApplicationsD ata Science is an experimental science. It starts with the “No Free Lunch Theorem,” which states that there is no one-size-fits-all algorithm that works best for every problem. And it results in…

Experimenting with Large Language Models for free Artistic representation of the LangChain, Photo by Ruan Richard Rodrigues, UnsplashEverybody knows that large language models are, by definition, large. And even not so long ago, they were available only for high-end hardware owners, or at least for people who paid for cloud access or even every API…

In 3 words: timeliness, methodology, and digestibility A couple of weeks ago, I wrote about building systems to generate more quality insights. I presented how you could increase the output of your team by working on areas such as processes, tools, culture, etc., but I never defined what I meant by “quality” — so this…