Published in Level Up Coding·Jan 23Member-onlyThe Ultimate SQL Learning Track for Data AnalysisFollow this track and build a solid SQL foundation for data analysis — I feel that many SQL learning methods spend too much time on things that are useless for data analysis, and leave out important details. With that in mind, I have created this learning track for data analysis, tailored for beginners that want to learn SQL from scratch and get good…Sql5 min readSql5 min read
Published in DataDrivenInvestor·Jan 21Member-onlyThe Ultimate Tableau Learning TrackFollow this track and build a solid Tableau foundation for data analysis — I learned how to use Tableau by trial-and-error, and would have loved to have a structured learning path to help me in my journey. So, I’ve decided to create one myself, loosely based around their certification track. Regardless of getting the certifications, I think the process of preparing for them…Tableau4 min readTableau4 min read
Published in Geek Culture·Jan 20Member-onlyBayesian Time Series ForecastingTheory and practice using PyBATS — Time series forecasting has always been a huge topic in statistics and machine learning in general. When we first learn it, we usually cover methods such as SARIMA and Holt-Winters exponential smoothing. Lately, the field has evolved and more advanced methods came up, such as long short-term memory (LSTM) neural…Time Series Forecasting6 min readTime Series Forecasting6 min read
Published in Level Up Coding·Jan 16Member-onlyThe Ultimate Python Learning Track for MLFollow this track and build a solid Python foundation for ML — I see many Python learning tracks for ML that are either too optimistic and make you believe that you will learn everything in 3 months, or that overcomplicate things and make you learn things you do not need. I designed a learning track that tries to find that sweet spot…Machine Learning9 min readMachine Learning9 min read
Published in DataDrivenInvestor·Jan 11Member-onlyWhy You’re Struggling to Break into Data ScienceAnd what you can do about it — I see many people having a hard time transitioning from other fields into Data Science, even though there’s more open jobs every day. Many companies end up going for people who already have domain experience or who are fresh out of college, with a degree in Statistics or Computer Science. …Data Science4 min readData Science4 min read
Published in DataDrivenInvestor·Jan 11Member-onlyHow I Made €22 000 in 2022 from Side HustlesWith detailed tips and ressources for you to use in 2023 — Straight to the point: besides my full-time data science job, I’ve had 5 sources of income in 2022, all related to teaching and writing. For each source, I’ll share here: how much I made from it how much effort I put into it what strategies I used to maximize my…Data Science5 min readData Science5 min read
Published in DataDrivenInvestor·Dec 15, 2022Member-onlyState of Data Science for 2023What changed in 2022 and what to expect for next year — In 2022 we have seen a lot of mixed signs regarding data science: many people saying the field was dying, while jaw-dropping AI was popping all over the internet (yes ChatGPT, I’m talking to you). So many new courses are coming up, job opportunities everywhere and, at the same time…Data Science5 min readData Science5 min read
Published in DataDrivenInvestor·Nov 17, 2022Member-onlyData Science for Business — Book ReviewMy personal take on this all-time classic — Introduction Data Science for Business, published in 2013, aims to introduce data science from a business perspective, achieving a good balance between broadness and technical detail. This was possible thanks to the successful combination of two authors: a data scientist — Tom Fawcett holds a PhD in Machine Learning and over…Data Science4 min readData Science4 min read
Published in DataDrivenInvestor·Oct 7, 2022Member-onlyI Interviewed One of Meta’s AI SystemsThis interview was fully answered by OPT-175B, an AI developed by Meta that focuses in language and text generation — This section was written by me, a human being, to explain to you, another human being, how I did this interview with OPT-175B, a language model. From now on, we will call it OPT. OPT was developed by Meta AI and it works by taking text as prompt (it can…Artificial Intelligence5 min readArtificial Intelligence5 min read
Published in DataDrivenInvestor·Sep 10, 2022Member-onlyShould You Take the Google Data Analytics Certification?An honest review on the certification and insights on how Google does analytics — Whether you are looking for an entry-level job in the analytics field, or just trying to understand how Google does data analysis, this certification might be the right one for you! It includes 8 courses, and the estimated time to complete it is approximately 6 months, considering a pace of…Google4 min readGoogle4 min read
