Feature Selection with Decision Trees and Random Forests

This video shows the process of feature selection with Decision Trees and Random Forests. Why do we need Feature Selection? Often we end up with large datasets with redundant features that need to be cleaned up before making sense of the data.  Check out this related article on Recursive Feature Elimination that describes the challenges…

Recursive Feature Elimination for Feature Selection

This video explains the technique of Recursive Feature Elimination for feature selection when we have data with lots of features. Why do we need Feature Elimination? Often we end up with large datasets with redundant features that need to be cleaned up before making sense of the data. Some of the challenges with redundant features…

Berkson’s Paradox

This video explains the Berkson’s Paradox. Berkson’s Paradox typically arises from selection bias when we create our dataset, that could lead to unintended inferences from our data. Summary of contents: Berkson’s Paradox illustrated with Burger and Fries example Berkson’s Paradox in the dating scenario Mathematical explanation of Berkson’s Paradox Berkson’s Paradox Example in understanding correlation…

Bayesian Neural Networks

Bayesian Neural networks enable capturing uncertainity in the parameters of a neural network. This video contains: A brief Recap of Feedforward Neural Networks Motivation behind a Bayesian Neural Network What is a Bayesian Neural Network Inference in a Bayesian Neural Network Pros and Cons of using a Bayesian Neural Network References to Code samples to…

What is Bayesian Logistic Regression?

Bayesian Logistic Regression In this video, we try to understand the motivation behind Bayesian Logistic regression and how it can be implemented.  Recap of Logistic Regression Logistic Regression is one of the most popular ML models used for classification. It is a generalized linear model where the probability of success can be expressed as a…

Do we need to learn Optimization to build Machine Learning Models ?

Do we need optimization for Machine Learning ? The answer is No and Yes. If you are a beginner, just getting started, you can build a fair bit of stuff without in depth knowledge of an advanced topic such as optimization. However, if you are looking to be an expert, where you write custom models,…

Optimizing Memory in Python : Understanding Garbage Collection

How do you free unwanted memory in python ? Often, our programs run out of memory when we are trying to build models. How can we free some of the unwanted memory to get our programs running again? This video talks about ways to free unwanted memory in python. The video briefly explores garbage collection…

What is Bayesian Modeling?

This video explains Bayesian Modeling : Why do we need Bayesian Modeling? What is Bayesian Modeling? What are some examples where we can practically use Bayesian Modeling ? Check out https://www.tensorflow.org/probability  for code examples. We will have more videos and articles explaining Bayesian extensions of popular models shortly… bayesian_complete_short