Senior Data Science Lead
Jose Parreño GarciaI write about Data Science, Machine Learning and leading data teams. I have built teams from scratch and lead 50+ data scientists @Skyscanner. Now, I share my experience with you.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 85 | Founded | 2 years ago | Last Issue | 11 days ago |
| Active | |||||
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joseparreogarcia.substack.comLatest Issues
Open source models are good enough. Stop overpaying for intelligence you don't need
Open source models are behind frontier ones. There is no denying it, but, how far off are they and is this gap really that important?
The AI conversation is obsessed with capability rankings. Which model tops the leaderboard this week? Whi...
🚀 June on Sr Data Science Lead: What’s coming up
🗓 June release schedule
June comes packed with a few relevant Data Science topics!
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The data visualisation series continues with blog number 6 of the course. This time, the focus is on fixing bad labels on your axis.
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Then, I...
DS-STAR: How Google built a Data Science agent that actually works
How Google's seven-module pipeline beats raw Gemini by 32 percentage points — and what that means for anyone building data science agents.
I have been using agentic coding tools for about two years (Claude Code for the past year, consisten...
What the docs don't tell you about Claude Code skills
A practical guide to the anatomy, hidden levers, and design principles that make Claude Code skills reliable.
This month, I finished building a skill for every stage of my newsletter writing pipeline.
Understanding Transformers (Part 3): Positional encodings and word embeddings
This week I am picking up where we left off: stepping out of the world of RNNs and LSTMs, and into the architecture behind everything from ChatGPT to GitHub Copilot: the Transformer.
But, before we can even begin to talk about attention he...
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I write about Data Science, Machine Learning and leading data teams. I have built teams from scratch and lead 50+ data scientists @Skyscanner. Now, I share my experience with you.
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