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Meet Mirek

Meet Mirek

Hello! I’m Mirek Cerny, an entrepreneur, writer and data scientist. All of my work falls under one umbrella: helping YOU get more from your data. I’m fascinated by Predictive Analytics and how we can use them to our advantage. But I don’t just write about this topic; I also do it. I worked with I got […]

Workshop with the most intelligent Cz...

Workshop with the most intelligent Czech children

Today I had a pleasure to meet attendees of a camp organised by Mensa Czech. There were about 70 children of age from 12 to 18. These guys were a group of the brightest, talented and skilled kids I have ever met. My role at the event was to inspire the young people by the […]

Visual customer segmentation

Visual customer segmentation

Customer segmentation is becoming one of the top priorities for digital marketers today. There are many methods that can be used. Let me describe one that isn’t based on an exact science, but is very effective. I call it “visual segmentation”. Visual because you must visually assess you customer distribution by the given dimension to determine […]

80:20 rule – Pareto principle

80:20 rule – Pareto principle

The marketing axiom that “80% of your business comes from 20% of your customers.” is also known as “Pareto’s rule”. If means that, theoretically, if you can keep just 20% of your best customers, you would still earn 80% of your revenue. Why? Because these customers are mostly loyal and keep coming back. My colleague […]

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