Hi there!

My name is Ruslan Klymentiev. Welcome to my blog.

This is the place where I post stuff related to:

  • Machine Learning
  • Probability & Statistics
  • Data Visualization
  • (and a bit of) Neuroscience

Recent Posts

A (not that) Simple Least Squares Regression

Overview of the math behind an Ordinary Least Squares method, and what is needed to be taken into consideration when fitting a regression line.

Role of Antidepressants in the Treatment of Major Depressive Disorder

Literature review for the final project at 2020 International Youth Neuroscience Association Summer Course.

Null Hypothesis Significance Testing, part 3

Overview of the power and the effect size of the test and why low p-value is not always enough to make a decision.

Null Hypothesis Significance Testing, part 2

Introduction to the inference for a population proportion using binomial test and $\chi^2$ test for independence.

Null Hypothesis Significance Testing, part 1

Basic concept of the NHST and the idea of p-value. Overview of the inference for a population mean using one/two-sample $t$-tests and ANOVA.


Recent & Upcoming

How to start career in Data (in Russian)

In this episode of DEVrepublik podcast I talked about my story how I got into Data Science field (spoiler, electronic engineering-fitness-marketing-data) and discussed what main skills are needed for a fresh data enthusiast.

Statistical Hypothesis Testing (in Russian)

Main idea of the Null Hypothesis Significance Testing. Intuition behind the p-value. How to perform t-tests, ANOVA, Binomial Test and Chi-squared Test.

Packages for Data Visualization (in Russian)

The main types of charts. How to build graphs in Python using matplotlib, seaborn and plotly packages.