Data Analysis Journal

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A quick lookup one-pager for common DATE functions in SQL
Olga Berezovsky
An analysis to find the right threshold of the most impactful frequency of user communication
Olga Berezovsky
A framework of product experimentation - the procedure and analysis.
Olga Berezovsky

February 2023

My favorite blogs and newsletters to read about data and product analysis, data science, and data engineering.
Olga Berezovsky
7
How to apply CASE conditional expressions to specify a result when there are multiple conditions.
Olga Berezovsky
Using machine learning to solve common challenges in product and data analytics. How to figure out which model to use for which business case.
Olga Berezovsky
3
A practical guide on how to locate and measure a tricky product persona of adjacent users in SQL, and challenges of getting such analysis in product…
Olga Berezovsky

January 2023

A roundup of the most popular not-to-miss conferences, events, and workshops around data and ML this year.
Olga Berezovsky
2
Should you invest in influence marketing to grow your product? What is the expected ROI? Here’s some math behind.
Olga Berezovsky
How to get the frequency of usage and create a user activity histogram for user engagement analysis in SQL.
Olga Berezovsky
2
Introduction and must-know statistical concepts for data analysis and data science
Olga Berezovsky

December 2022

A recap of 2022 and its best publications, a little gratitude, a lot of confetti, and what’s coming next
Olga Berezovsky
1
© 2023 Olga Berezovsky
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