Book Image

Machine Learning for Healthcare Analytics Projects

Book Image

Machine Learning for Healthcare Analytics Projects

Overview of this book

Machine Learning (ML) has changed the way organizations and individuals use data to improve the efficiency of a system. ML algorithms allow strategists to deal with a variety of structured, unstructured, and semi-structured data. Machine Learning for Healthcare Analytics Projects is packed with new approaches and methodologies for creating powerful solutions for healthcare analytics. This book will teach you how to implement key machine learning algorithms and walk you through their use cases by employing a range of libraries from the Python ecosystem. You will build five end-to-end projects to evaluate the efficiency of Artificial Intelligence (AI) applications for carrying out simple-to-complex healthcare analytics tasks. With each project, you will gain new insights, which will then help you handle healthcare data efficiently. As you make your way through the book, you will use ML to detect cancer in a set of patients using support vector machines (SVMs) and k-Nearest neighbors (KNN) models. In the final chapters, you will create a deep neural network in Keras to predict the onset of diabetes in a huge dataset of patients. You will also learn how to predict heart diseases using neural networks. By the end of this book, you will have learned how to address long-standing challenges, provide specialized solutions for how to deal with them, and carry out a range of cognitive tasks in the healthcare domain.
Table of Contents (7 chapters)

Testing the network

What we need to see is whether or not this model can now generalize new information, which is why we reserved the testing dataset earlier. We need to generate a classification report using predictions from the model. To do this, we're going to import the classification_report and the accuracy_score features from the sklearn.metrics library. We also have to predict the values, which is very easy to do using the model.predict() function. We have to print those out and see what we have. The following lines of code show the process of testing the predictions:

# generate classification report using predictions for categorical model
from sklearn.metrics import classification_report, accuracy_score
predictions = model.predict_classes(X_test)
predictions

The preceding code snippet generates an array consisting of 1s and 0s, as shown in the following screenshot:

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