Book Image

Machine Learning Solutions

Book Image

Machine Learning Solutions

Overview of this book

Machine learning (ML) helps you find hidden insights from your data without the need for explicit programming. This book is your key to solving any kind of ML problem you might come across in your job. You’ll encounter a set of simple to complex problems while building ML models, and you'll not only resolve these problems, but you’ll also learn how to build projects based on each problem, with a practical approach and easy-to-follow examples. The book includes a wide range of applications: from analytics and NLP, to computer vision domains. Some of the applications you will be working on include stock price prediction, a recommendation engine, building a chat-bot, a facial expression recognition system, and many more. The problem examples we cover include identifying the right algorithm for your dataset and use cases, creating and labeling datasets, getting enough clean data to carry out processing, identifying outliers, overftting datasets, hyperparameter tuning, and more. Here, you'll also learn to make more timely and accurate predictions. In addition, you'll deal with more advanced use cases, such as building a gaming bot, building an extractive summarization tool for medical documents, and you'll also tackle the problems faced while building an ML model. By the end of this book, you'll be able to fine-tune your models as per your needs to deliver maximum productivity.
Table of Contents (19 chapters)
Machine Learning Solutions
Foreword
Contributors
Preface
Index

Data preprocessing and data analysis


In this section, we will mainly cover data preprocessing and data analysis. As a part of data preprocessing, we are preparing our training dataset. You may be wondering what kind of data preparation I'm talking about, considering we already have the data. Allow me to tell you that we have two different datasets and both datasets are independent. So, we need to merge the DJIA dataset and NYTimes news article dataset in order to get meaningful insights from these datasets. Once we prepare our training dataset, we can train the data using different machine learning (ML) algorithms.

Now let's start the coding to prepare the training dataset. We will be using numpy, csv, JSON, and pandas as our dependency libraries. Here, our code is divided into two parts. First, we will prepare the dataset for the DJIA index dataset and then we will move to the next part, which is preparing the NYTimes news article dataset. During the preparation of the training dataset,...