Machine Learning Using R

© Karthik Ramasubramanian and Abhishek Singh 2017

Karthik Ramasubramanian and Abhishek SinghMachine Learning Using R10.1007/978-1-4842-2334-5_3

3. Sampling and Resampling Techniques

Karthik Ramasubramanian¹  and Abhishek Singh¹

(1)

New Delhi, Delhi, India

 

In Chapter 2, we introduced the concept of data import and exploration techniques. Now you are equipped with loading data from different sources and storing them in an appropriate format. In this chapter we will discuss important data sampling methodologies and their importance in machine learning algorithms. Sampling is an important block in our machine learning process flow and it serves the dual purpose of cost savings in data collection and reduction in computational cost without compromising ...