Algorithms | Sai's Data Website

Here I blog on all topics related to Big Data and Data Science. Articles could be of types: Executive Summaries, Tools analysis, Tool Comparisons, Architectural Patterns, Introductions to complex topics, and 'How to' or Tutorial types that share code snippets.

Decision Trees through an Example

We have so far seen what decision trees are, why we need them, what are certain measures that help in creating a decision tree and how...

Sai Geetha M N

Nov 7, 20225 min read

Decision Trees - Feature Selection for a Split

In the previous two articles "Decision Trees- How to decide the split?" and "Decision Trees - Homogeneity Measures", I have laid the...

Sai Geetha M N

Sep 17, 20224 min read

Decision Trees - Homogeneity Measures

Having had an introduction to what is homogeneity and what are the 3 basic types of measures that can be used in the previous article on...

Sai Geetha M N

Sep 4, 20224 min read

Decision Trees - How to decide the split?

In the introduction to Decision trees, we have seen that the whole process is to keep splitting one node into two based on certain...

Sai Geetha M N

Aug 16, 20223 min read

Decision Trees - An Introduction

Decision trees are an algorithm class that form the foundation for Random Forests, a class of algorithms that is extensively used in...

Sai Geetha M N

Jul 23, 20224 min read

Hierarchical Clustering Through an Example

I have taken a problem statement of an NGO wanting to find the top 5-10 countries from a list of 169 who are in dire need of aid, in the...

Sai Geetha M N

Jan 23, 20224 min read

Hierarchical Clustering - Types of Linkages

We have seen in the previous post about Hierarchical Clustering, when it is used and why. We glossed over the criteria for creating...

Sai Geetha M N

Jan 16, 20223 min read

Hierarchical Clustering: A Deep Dive

In the last five blog posts, I have discussed the basics of Clustering and then, K-Means clustering in detail. In my "Introduction to...

Sai Geetha M N

Nov 26, 20215 min read

K-Means Clustering through An Example

Now that we have understood the basics of K-Means Clustering, let us dive a little deeper today. Let us look at one practical problem and...

Sai Geetha M N

Nov 4, 202110 min read

Steps towards Data Science or Machine Learning Models

Having completed the basics of K-Means clustering in the last 3 weeks, I was tempted to take you through an example problem through code....

Sai Geetha M N

Oct 21, 20214 min read

K-Means Clustering: Part 3 of 3

Theoretically and mathematically, we have understood a great deal about K-Means Clustering through Part 1 and Part 2 of this series. If...

Sai Geetha M N

Oct 8, 20216 min read

K-Means Clustering: Part 2 of 3

Last week, we looked at the basic understanding of how K-Means Clustering works through the 5-step process where the two steps of...

Sai Geetha M N

Oct 1, 20214 min read

K-Means Clustering: Part 1 of 3

Having looked at Clustering in general and also having heard that K-Means is one of the simplest and most popular clustering algorithms,...

Sai Geetha M N

Sep 23, 20214 min read

Introduction to Clustering Algorithms

As mentioned in one of my introductory articles on "Machine Learning Algorithms Categories", Clustering Algorithms are a set of...

Sai Geetha M N

Sep 16, 20216 min read

Regression Algorithms

#ExecutiveSummary #MLModels What is Regression? Regression is a statistical model/method used to determine the strength and character of...

Sai Geetha M N

Apr 8, 20212 min read