fbpx

Tag: Data Science

SQL for Beginner Data Scientist

Why SQL is one of the most valuable skills to learn? Why it’s important to learn SQL? I have grasped a lot of skills over the course of…

Do you know how to choose the right machine learning algorithm among 7 different types?

This is a generic, practical approach that can be applied to most machine learning problems: 1-Categorize the problem The next step is to categorize the problem. Categorize by…

You are irrational, read this to know why?

In the 1970s, two psychologists proved, once and for all, that humans are not rational creatures. Daniel Kahneman and Amos Tversky discovered “cognitive biases,” showing that that humans…

Going to the hospital is extremely dangerous because most people die at hospitals

I believe, therefore it’s true In statistical analysis selection bias means that the sample you have chosen is not representative of the population you want to look at. Let…

What is regularization in machine learning?

You may have heard of the famous book The Signal and the Noise by Nate Silver. In predictive modeling, you can think of the signal as the true…

Precision And Recall

In pattern recognition information retrieval and binary classification, precision (also called positive predictive value) is the fraction of relevant instances among the retrieved instances, while recall (also known…

Bias-variance dilemma?

The Bias-Variance dilemma is relevant for supervised machine learning. It’s a way to diagnose an algorithm performance by breaking down its prediction error. There are three types of…

Standardization VS Normalization

Standardization Standardization (or Z-score normalization) is the process of rescaling the features so that they’ll have the properties of a Gaussian distribution with μ=0 and σ=1 where μ…