by Sergii Bryl'
May 04, 2020
Worldwide COVID-19 spread visualization with R

COVID-19 or Coronavirus pandemic is having an unpredictable and huge impact on our lives, so I wanted to see the speed with which it spreads across countries. The following is how I’ve seen it:

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by Sergii Bryl'
Jan 08, 2020
10 differences between a Kaggle competition and real-life project

There are some very important differences between a Kaggle competition and real-life project which beginner Data Scientists should know about. Kaggle creates a fantastic competition spirit.

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by Sergii Bryl'
Sep 19, 2018
LTV prediction for a recurring subscription with R

Customers lifetime value (LTV or CLV) is one of the cornerstones of product analytics because we need to make a lot of decisions for which the LTV is a necessary or at least very significant factor. In this article, we will focus on products/services/applications with recurring subscription payments.

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by Sergii Bryl'
Jun 13, 2018
Anomaly Detection for Business Metrics with R

The larger and more complex the business the more metrics and dimensions. One day you understand that it is impossible to track them with only your eyes.

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by Sergii Bryl'
Sep 28, 2017
Marketing Multi-Channel Attribution model based on Sales Funnel with R

We will review another fascinating approach that marries heuristic and probabilistic methods. We will link marketing channels with a probability of a customer passing through each step of a Sales Funnel

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by Sergii Bryl'
May 31, 2017
Marketing Multi-Channel Attribution model with R (part 2: practical issues)

Even though the concept of the first-order Markov chains is pretty simple, you can face other issues and challenges when implementing the approach in practice. We will review some of them

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by Sergii Bryl'
Feb 08, 2017
Twitter sentiment analysis with Machine Learning in R using doc2vec approach (part 1)

We will use Document-Term Matrix that is the result of Vocabulary-based vectorization for training the model for Twitter sentiment analysis

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