Publications by Amar Gondaliya
Logistic Regression with R: step by step implementation part-2
Welcome to the second part of series blog posts! In previous part, we discussed on the concept of the logistic regression and its mathematical formulation. Now, we will apply that learning here and try to implement step by step in R. (If you know concept of logistic regression then move ahead in this part, otherwise you can view previous post to ...
4510 sym R (855 sym/7 pcs) 8 img
Predictive analysis in ecommerce
Welcome to the blog post! We all know the predictive analysis is very hot topic now days. Everyone is looking for how the power of predictive analysis can be used in their business and get their business questions solved. Recently, I was doing study on the predictive analysis in ecommerce. I found many interesting things during my study. Let ...
3525 sym 4 img
Regularization implementation in R : Bais and Variance diagnosis
Welcome to this blog post. In previous posts I discussed about the linear regression and logistic regression in detail. We used Andrew NG’s ML class dataset to fit linear regression and logistic regression. We also discussed about step by step implementation in R along with cost function and gradient descent. In this post I will discuss about t...
5226 sym R (2700 sym/7 pcs) 14 img
Build Predictive Model on Big data: Using R and MySQL Part-1
Wellcome to the series blog posts. Since long time, I am writing post on Machine learning with R. Today I am gonna discuss on big data problem while fitting machine learning on it and its solution using MySQL and R. Before we jump directly to solution, let us discuss about big data little bit. (You can skip this section if you want to start using...
3654 sym 2 img
Build Predictive Model on Big data: Using R and MySQL Part-2
Welcome to the second part of the series blog posts. In first part we tried to understand the challenges of fitting predictive model to the large dataset. In this post I will discuss about the solution approach to that challenges. Let’s start rolling. As machine learning technique requires accessing whole dataset for fitting model on it, it wil...
4278 sym 6 img
Build Predictive Model on Big data: Using R and MySQL Part-3
Welcome to last part of the series post again! In previous part I discussed about the solutions to the questions mentioned in first part. In this part, we will implement whole scenario using R and MySQL together and see how we can process bigdata(computationally ) Let us recall those questions and summarize their answers to get started with impl...
3470 sym R (1293 sym/5 pcs) 6 img
Predictive analysis in eCommerce part-3
Welcome to the third part of series posts. In previous post, I discussed about the data points which we require to perform predictive analysis. In this post I will discuss about the solution approach along with required methodology and its implementation in R. Before we move ahead in this part, let us recall the prediction objective set in first ...
8209 sym R (2214 sym/11 pcs)
SparkR with Rstudio in Ubuntu 12.04
Welcome to the blog post! It’s been long time since I wrote last post. I was recently searching about big data with R and I found sparkR package. Few months back I heard about it and it was a separate project on github. Databricks is actively working on sparkR package. They officially announced its integration with Apache spark. In this post, I...
1621 sym R (475 sym/1 pcs) 8 img