Roz Intelligencia journal
Notes on decision systems.
Practical writing on experimentation, evidence integrity, metric governance, operational diagnosis, and analytics engineering.
Experimentation 6 min
Why a Negative Experiment Can Be a Successful Decision
A negative result can protect a team from scaling the wrong change—if the experiment was designed around a real decision.
Fraud Detection 4 min
Identifying Fake “New User” via Promotion to achieve Sustainable Business Growth
A practical way to identify abusive activity from promotional users before it becomes a sustainable-business problem.