Jai Kamal's Blog : Work in Progress

I am just posting  my experience of participating in StatWars- An event conducted by Department of Business Economics, University of Delhi in its annual flagship event Vishleshan. (Eventually, I ended up winning the event). As this event was related to predictive analytics, those who do not have much Idea of predictive analysis can refer to my past post  How can you learn Predictive Modelling? Introduction to StatWars In this event we were asked to predict whether the residents of the city will purchase the one time investment scheme or not. The full problem description is here . My Methodology Before explaining the methodology, I assume you have some idea of four algorithms namely logistic regression, random forest, decision tree and knn. I used an ensemble of these four data mining algorithms. There are two ways of understanding my code 1. Read Individual codes and then read Ensemble.R (Which might take longer but this is better way) 2. Just read the Ensemble.R and forg...

Let us start with the introduction of predictive analytics. Before Knowing what it is and how it suits us, it is worthless to learn that skill. What is Predictive Analytics? According to SAS ,"Predictive analytics is the use of data, statistical algorithms and machine-learning techniques to identify the likelihood of future outcomes based on historical data." Other definitions are just one click away from you .Just google it.  that is why google has become a verb from a noun :) Why Predictive Analytics? As stated earlier, this is one of the most important question to be answered first. (the only exception is that if you have passion to learn new things in life, you can skip this and start learning) Predictive Analytics is a part of Data Science(It's a subset of Data Science) and we all know that Data Science is the sexiest job of 21st century. you can refer that Oct 2012 HBR article  here . A lot of other sources such as   Forbes,  Inc,  Adobe  have al...