Data Clustering with K-Means

Determining data clusters is an essential task to any data analysis and can be a very tedious task to do manually! This task is nearly impossible to do by hand in higher-dimensional spaces! Along comes machine learning to save the day! We will be discussing the K-Means clustering algorithm, the most popular flavor of clustering … Read more Data Clustering with K-Means

A Guide to Improving Deep Learning’s Performance

Although deep learning has great potential to produce fantastic results, we can’t simply leave everything to the learning algorithm! In other words, we can’t treat the model as some black-box, closed entity that can read our minds and perform the best! We have to be involved in the training and design process to make sure … Read more A Guide to Improving Deep Learning’s Performance

Text Classification Tutorial with Naive Bayes

The challenge of text classification is to attach labels to bodies of text, e.g., tax document, medical form, etc. based on the text itself. For example, think of your spam folder in your email. How does your email provider know that a particular message is spam or “ham” (not spam)? We’ll take a look at … Read more Text Classification Tutorial with Naive Bayes

Introduction to Convolutional Neural Networks for Vision Tasks

Neural networks have been used for a wide variety of tasks across different fields. But what about image-based tasks? We’d like to do everything we could with a regular neural network, but we want to explicitly treat the inputs as images. We’ll discuss a special kind of neural network called a Convolutional Neural Network (CNN) that … Read more Introduction to Convolutional Neural Networks for Vision Tasks

Complete Guide to Deep Neural Networks – Part 2

Read Part 1 here. Last time, we formulated our multilayer perceptron and discussed gradient descent, which told us to update our parameters in the opposite direction of the gradient. Now we’re going to mention a few improvements on gradient descent and discuss the backpropagation algorithm that will compute the gradients of the cost function so … Read more Complete Guide to Deep Neural Networks – Part 2

Complete Guide to Deep Neural Networks – Part 1

Neural networks have been around for decades, but recent success stems from our ability to successfully train them with many hidden layers. We’ll be opening up the black-box that is deep neural networks and looking at several important algorithms necessary for understanding how they work. To solidify our understanding, we’ll code a deep neural network … Read more Complete Guide to Deep Neural Networks – Part 1

Perceptrons: The First Neural Networks

Neural Networks have become incredibly popular over the past few years, and new architectures, neuron types, activation functions, and training techniques pop up all the time in research. But without a fundamental understanding of neural networks, it can be quite difficult to keep up with the flurry of new work in this area. To understand … Read more Perceptrons: The First Neural Networks

Building Blocks – Data Science and Linear Regression

“Data science” or “Big data analyst” is a phrase that has been tossed around since the advent of Big Data. But what is it, really? Well imagine working for a retail company. One of the questions you may be asked to answer is “how many chips should we stock up for this month?” It seems … Read more Building Blocks – Data Science and Linear Regression

Overview of Machine Learning

Computers are incredibly dumb. They have to be told explicitly what to do in the form of programs. Programs have to account for every possible branch of logic and are specific to the task at hand. If there are any anomalies in the set of inputs, a program might not produce the right output or … Read more Overview of Machine Learning