Knowledge & Perspectives
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Articles, analysis and perspectives on Business Intelligence, Analytics and AI.
Analytics
Analytics Time series: how to analyze and predict data over time
What time series analysis is and the three patterns to look for — trend, seasonality and noise — to sepa…
Analytics KPIs vs metrics: the difference and how to choose the right ones
What is the difference between a KPI and a metric? How to tell them apart, avoid vanity metrics and pick…
Analytics Sampling: when analyzing a part says more (and faster) than the whole
Why analyzing a well-chosen sample is often better than processing everything: the counterintuitive powe…
Analytics Cohort analysis: how to measure retention over time
What cohort analysis is and why it reveals the real retention a total hides: how to read a cohort table,…
Analytics Correlation is not causation: the mistake that fools even experts
Why correlation is not causation: the role of confounding variables, why this mistake costs money in dec…
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