Book Image

Mastering Data Mining with Python - Find patterns hidden in your data

By : Megan Squire
Book Image

Mastering Data Mining with Python - Find patterns hidden in your data

By: Megan Squire

Overview of this book

Data mining is an integral part of the data science pipeline. It is the foundation of any successful data-driven strategy – without it, you'll never be able to uncover truly transformative insights. Since data is vital to just about every modern organization, it is worth taking the next step to unlock even greater value and more meaningful understanding. If you already know the fundamentals of data mining with Python, you are now ready to experiment with more interesting, advanced data analytics techniques using Python's easy-to-use interface and extensive range of libraries. In this book, you'll go deeper into many often overlooked areas of data mining, including association rule mining, entity matching, network mining, sentiment analysis, named entity recognition, text summarization, topic modeling, and anomaly detection. For each data mining technique, we'll review the state-of-the-art and current best practices before comparing a wide variety of strategies for solving each problem. We will then implement example solutions using real-world data from the domain of software engineering, and we will spend time learning how to understand and interpret the results we get. By the end of this book, you will have solid experience implementing some of the most interesting and relevant data mining techniques available today, and you will have achieved a greater fluency in the important field of Python data analytics.
Table of Contents (16 chapters)
Mastering Data Mining with Python – Find patterns hidden in your data
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

What is sentiment analysis?


Many texts contain language that can be described as emotional. Whether to express the feelings of the writer, or to inspire a particular feeling in the reader, human language can convey anger, disappointment, disgust, joy, happiness, amusement, and so on. Discovering this type of emotional content can tell us a great deal about the writer, including what the writer's intention was and the expected response of the reader. Even noticing the absence of emotional content in a text can be interesting. Once we understand how to discern the emotional content of a text, or lack thereof, we can compare texts and writers to each other in terms of the emotional content, we can compare emotional content over time, and we can sometimes even predict how a reader will respond to a particular text.

Analyzing a text for its emotional content can take many forms. In this chapter, we will be primarily concerned with sentiment analysis, sometimes called opinion mining. Sentiment...