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

How to optimize the existing approach


As you have seen in the previous section, because of the lack of computation hardware, we have achieved a 66% accuracy rate. In order to improve the accuracy further, we can use the pre-trained model, which will be more convenient.

Understanding the process for optimization

There are a few problems that I have described in the previous sections. We can add more layers to our CNN, but that will become more computationally expensive, so we are not going to do that. We have sampled our dataset well, so we do not need to worry about that.

As part of the optimization process, we will be using the pre-trained model that is trained by using the keras library. This model uses many layers of CNNs. It will be trained on multiple GPUs. So, we will be using this pre-trained model, and checking how this will turn out.

In the upcoming section, we will be implementing the code that can use the pre-trained model.