Book Image

Data Science with Python

By : Rohan Chopra, Aaron England, Mohamed Noordeen Alaudeen
Book Image

Data Science with Python

By: Rohan Chopra, Aaron England, Mohamed Noordeen Alaudeen

Overview of this book

Data Science with Python begins by introducing you to data science and teaches you to install the packages you need to create a data science coding environment. You will learn three major techniques in machine learning: unsupervised learning, supervised learning, and reinforcement learning. You will also explore basic classification and regression techniques, such as support vector machines, decision trees, and logistic regression. As you make your way through the book, you will understand the basic functions, data structures, and syntax of the Python language that are used to handle large datasets with ease. You will learn about NumPy and pandas libraries for matrix calculations and data manipulation, discover how to use Matplotlib to create highly customizable visualizations, and apply the boosting algorithm XGBoost to make predictions. In the concluding chapters, you will explore convolutional neural networks (CNNs), deep learning algorithms used to predict what is in an image. You will also understand how to feed human sentences to a neural network, make the model process contextual information, and create human language processing systems to predict the outcome. By the end of this book, you will be able to understand and implement any new data science algorithm and have the confidence to experiment with tools or libraries other than those covered in the book.
Table of Contents (10 chapters)

Keras

Keras is an open-source, high-level neural network API written in Python. It is capable of running on top of TensorFlow, Microsoft Cognitive Toolkit (CNTK), or Theano. Keras was developed to enable fast experimentation and thus help in rapid application development. Using Keras, one can get from idea to result with the least possible delay. Keras supports almost all the latest data science models relating to neural networks due to the huge community support. It contains multiple implementations of commonly used building blocks such as layers, batch normalization, dropout, objective functions, activation functions, and optimizers. Also, Keras allows users to create models for smartphones (Android and iOS), the web, or for the Java Virtual Machine (JVM). With Keras, you can train your models on your GPU without any change in code.

Given all these features of Keras, it is imperative for data scientists to learn how to use all the different aspects of the library. Mastering the use of Keras...