Time series forecasting is a skill that few people claim to know. Machine learning is cool. And there are a lot of people interested in becoming a machine learning expert. But forecasting is something that is a little domain specific.

Retailers like Walmart, Target use forecasting systems and tools to ...

Are you a confident person? The mind asked itself. I replied with an excited Yes!. The mind asked again, are you sure?. This time I thought for a ...

Do you understand the pain when you have to train advanced machine learning algorithms like Random Forest on huge datasets? When there is a factor column that has way too many number of levels? When the time taken to train the model is so huge that you went to your ...

In the last post we talked about the idea of adversarial validation and how it helps the problem when your validation set result doesn't comply with that of test set result. In this post, I will share the R code to help achieve the idea of adversarial validation. The ...

I had taken this course - How to use git and github some time last year. This post is an amalgamation of the course notes and other tutorials I have completed in understanding git. I will talk about the most frequently used commands. If you already are confident of your git ...

You'd have heard about cross-validation - a common technique used in data-science process to avoid overfitting and many a times to tune the optimal parameters. Overfitting is when the model does well on training data but fails drastically on test data. The reason could be one of the following:

1. The ...

Statistics is the field of study where we try to draw conclusions about the population from a sample. Why do we talk about sample? Why can't we get the conclusions about the population directly from the population? Let me illustrate this by an example.

Let us say we want ...

Visualization is one of the most important pillars of data science. Every one wants to learn Machine learning but if you explain them the little tasks that involve the overall workflow of the process, it turns them off. Everyone just wants to do the cool stuff. They want to build ...

Ever heard of secret Santa game? If not, you may not appreciate this article. Wait till you join the corporate world. But if you have, secret Santa may ring some bell.

Dialogues define our cinema. Ever imagined this twist. What if the Secret Santa gets introduced to Bollywood? Presenting, Secret ...

Last month on a mundane weekend, I was practicing this song - Fix you by Coldplay when my friend, Dipu came to the room. He stood there for some time to understand what I was trying to play. I am not that pro on guitar yet. Chances are you may want ...