Book Image

Data Science for Marketing Analytics

By : Tommy Blanchard, Debasish Behera, Pranshu Bhatnagar
Book Image

Data Science for Marketing Analytics

By: Tommy Blanchard, Debasish Behera, Pranshu Bhatnagar

Overview of this book

Data Science for Marketing Analytics covers every stage of data analytics, from working with a raw dataset to segmenting a population and modeling different parts of the population based on the segments. The book starts by teaching you how to use Python libraries, such as pandas and Matplotlib, to read data from Python, manipulate it, and create plots, using both categorical and continuous variables. Then, you'll learn how to segment a population into groups and use different clustering techniques to evaluate customer segmentation. As you make your way through the chapters, you'll explore ways to evaluate and select the best segmentation approach, and go on to create a linear regression model on customer value data to predict lifetime value. In the concluding chapters, you'll gain an understanding of regression techniques and tools for evaluating regression models, and explore ways to predict customer choice using classification algorithms. Finally, you'll apply these techniques to create a churn model for modeling customer product choices. By the end of this book, you will be able to build your own marketing reporting and interactive dashboard solutions.
Table of Contents (12 chapters)
Data Science for Marketing Analytics
Preface

Choosing the Number of Clusters


In the previous chapter, we just used a predefined number of clusters, but in the real world, we don’t always know what number of clusters to expect. There are different ways of trying to come up with the correct number of clusters. In this chapter, we will start with two. First, we will learn about simple visual inspection, which has the advantages of being easy and intuitive but relies heavily on individual judgement and subjectivity. We will then learn about the elbow method with sum of squared errors, which is partially quantitative but still relies on individual judgement and is more abstract than choosing based on visual inspection. Later in this chapter, we will also learn about using the silhouette score, which removes subjectivity from the judgment but is also quite abstract.

As we learn about these different methods, there is one overriding principle you should keep in mind: the quantitative measures only tell you how well that number of clusters...