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

Named entity recognition project


In this set of small projects, we will try our NER techniques on a variety of different types of text that we have seen already in prior chapters, as well as some new text. For variety, will look for named entities in e-mail texts, board meeting minutes, IRC chat dialogue, and human-created summaries of IRC chat dialogue. With these different types of data sources, we will be able to see how writing style and content both affect the accuracy of the NER system.

A simple NER tool

Our first step is to write a simple named entity recognition program that will allow us to find and extract named entities from a text sample. We will take this program and point it at several different text samples in turn. The code and text files for this project are all available on the GitHub site for this book, at https://github.com/megansquire/masteringDM/tree/master/ch6.

The code we will write is a short Python program that uses the same NLTK library we introduced in Chapter 3...