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Math and Data enthusiast!

Exploring some of the ways linear algebra proves to be an important component while making any data science model!

What is Linear Algebra?

As Wikipedia defines it: linear algebra is the branch of mathematics concerning linear equations such as:


As we dive into the world of “Unsupervised” Machine Learning, we will encounter problems that would require us to cluster the data available to us. This means we have to divide the data into clusters based on their level of similarity. K-Means Clustering allows us to do just that.

As the name suggests, the algorithm makes use of the “means” of the data to cluster them. Here “K” is just the number of clusters we want our data to be divided in. …


An actual Stephenian’s record.

There is no doubt that St. Stephen’s College is one of the most prestigious colleges, not just in Delhi, but in India. You may have come across people talking about the high cut-off percentages, the interview process and the low acceptance rate. As a “Stephenian” myself, I’ll tell you about my journey.

Image via: https://images.app.goo.gl/aGJ9ARtVzghfP6nf8

Quoting Wikipedia :

St. Stephen’s generally receives around 30,000 applicants for 400 seats each year leading to an incredibly low admit rate of 1.33%.

Also, about 50% of these seats are reserved for Christian students, making it even more competitive compared to other DU…


Challenges faced by consumers and retailers amongst the crisis, depicted with data!

Introduction

Since the outbreak of the pandemic, almost all retailers have had to adapt to the subtle or direct changes that have been inflicted on them and on their business. Except for those dealing with essential goods and services, all retailers have had to either completely halt their business, or operate with limited staff, deteriorating sales, and strict government restrictions.

Most retailers have had to think about how they can cope with the short term challenges that COVID-19 has brought, but also plan for its long-term impact. Even today…


If you've been playing with data, you may have surely come across outliers! But what exactly is an outlier?

Wikipedia Definition :

In statistics, an outlier is a data point that differs significantly from other observations. An outlier may be due to variability in the measurement or it may indicate experimental error.

Clearly, an outlier is something that doesn't match with most of our observations. For example, let's say we are measuring the heights of students in a class. Consider the data as follows:

heights = [150,158,156,162,147,164,157,256,150]

When we plot these values, we find out that something seems off!


As we dive into the world of Machine Learning and Data Science, one of the easiest and fun ways is to explore the various machine learning algorithms. They can be intimidating, especially if you’re just starting out. One of the simplest algorithms that we can explore with very basic knowledge of data science is the Linear Regression algorithm.

About Linear Regression

Linear Regression is mainly used in predicting continuous values. We deal with 2 kinds of variables:

  1. Independent Variables: The variables whose values are not affected by any other variables in our dataset. …


IBM Applied Data Science Professional Certificate — Capstone Project

As part of the 9 Course series from the IBM Applied Data Science Specialization offered by IBM on Coursera, the 9th course tests us on our ability to make an independent project.

This project demands the use of Foursquare API for Data Analysis and allows us to implement the various techniques learnt during the specialization. This includes various Data Visualisation Techniques.

Battle of the Neighborhoods

Introduction

This report is part of the Capstone Project for IBM’s Applied Data Science Professional Certificate offered by Coursera. This is part of the final course in this 9-course series.

We will be using several data visualization techniques, in particular…

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