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

Summary


We now have a basic understanding of how probabilistic topic modeling works and we have worked to implement one of the most popular tools for performing this analysis on text: the Gensim implementation of Latent Dirichlet Allocation, or LDA. We learned how to write a simple program to implement LDA modeling on a variety of text samples, some with greater success than others. We learned about how the model can be manipulated by changing the input variables, such as the number of topics and the number of passes over the data. We also discovered that topic lists can change over time, and while more data tends to produce a stronger model, it also tends to obscure niche topics that might have been very important for only a moment in time.

In this topic modeling chapter – perhaps even more than in some of the other chapters – our unsupervised learning approach meant that we experienced how our results are truly dependent on the volume, quality, and uniformity of the data we started with...