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Suresh kumar gorakala's Blog Posts Tagged 'science' (3)

Principal Component Analysis using R

Curse of Dimensionality:

One of the most commonly faced problems while dealing with data analytics problem such as recommendation engines, text analytics is high-dimensional and sparse data. At many times, we face a situation where we have a large set of features and fewer data points, or we have data with very high feature vectors. In such scenarios, fitting a model to the dataset, results in lower predictive power of the model. This scenario is often termed as…

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Added by suresh kumar gorakala on February 28, 2016 at 9:30pm — No Comments

Basic recommendation engine using R

Originally posted here

In our day to day life, we come across a large number of Recommendation engines like Facebook Recommendation Engine for Friends’ suggestions, and suggestions of similar Like Pages, Youtube recommendation engine suggesting videos similar to our previous searches/preferences. In today’s blog post I will explain how to build a basic…
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Added by suresh kumar gorakala on October 13, 2015 at 6:30am — No Comments

Introduction to Logistic Regression with R

In my previous blog I have explained about linear regression. In today’s post I will explain about logistic regression. 

        Consider a scenario where we need to predict a medical condition of a patient (HBP) ,HAVE HIGH BP or NO HIGH BP, based on some observed symptoms – Age, weight, Issmoking, Systolic value, Diastolic value, RACE, etc.. In this…

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Added by suresh kumar gorakala on October 9, 2015 at 9:13am — No Comments

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