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Data Scientist Candidate, Participant at Veri Bilimi Okulu, Econometrics, Enjoy to work with Data :) https://www.linkedin.com/in/cagataytuylu/

What’s Machine Learning?

Machine Learning is the science (and art) of programming computers so they can learn from data.

For example, your spam filter is a Machine Learning program that can learn to flag spam given examples of spam emails (e.g., flagged by users) and examples of regular (nonspam, also called “ham”) emails. The examples that the system uses to learn are called the training set. Each training example is called a training instance. This particular performance measure is called accuracy and it is often used in classification tasks.

Supervised Machine Learning

Supervised learning, also known as supervised machine learning, is defined by its use of…


Machine Learning is the science (and art) of programming computers so they can learn from data.

For example, your spam filter is a Machine Learning program that can learn to flag spam given examples of spam emails (e.g., flagged by users) and examples of regular (nonspam, also called “ham”) emails. The examples that the system uses to learn are called the training set. Each training example is called a training instance. This particular performance measure is called accuracy and it is often used in classification tasks.

If you just download a copy of Wikipedia, your computer has a lot more…


In the future, we most probably can’t be done anything without looking at the data. Yes, this is significant, because we are reaching out the unexpected results, with Data that we never even thought of. We can bring such important results to meaningful solutions in the triangle of mathematics, statistics, and programming.

Yes, I’m an Econometrics graduate and I’ve seen most of the metrics, calculation paths, and analysis outputs here before, but I’ve always had trouble adapting them to real-life problems, it wouldn’t be a lie if I say I had second enlightenment because I took a break for years…


A/B testing compares two versions of a web page or app against each other to determine which one performs better. AB testing is essentially an experiment where two or more variants of a page are shown to users at random, and statistical analysis is used to determine which variation performs better for a given conversion goal.

The days where marketers made changes to their websites based on gut feelings alone are far behind us. We are now deep in the A/B testing era, basing our decisions on as much empirical data as possible.

To enable that, the community has looked…


RFM is a method used for analyzing customer value. You can classify your customers and can describe the right customers who need attention, support, etc. After, you only need to specify your action.

RFM stands for the three dimensions:

  • Recency — How recently did the customer purchase?
  • Frequency — How often do they purchase?
  • Monetary Value — How much do they spend?

Process of RFM Analysis

RFM analysis numerically ranks a customer in each of these three categories, generally on a scale of 1 to 5 (the higher the number, the better the result). …

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