Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Mastering Machine Learning Algorithms
  • Toc
  • feedback
Mastering Machine Learning Algorithms

Mastering Machine Learning Algorithms

3.4 (5)
close
Mastering Machine Learning Algorithms

Mastering Machine Learning Algorithms

3.4 (5)

Overview of this book

Machine learning is a subset of AI that aims to make modern-day computer systems smarter and more intelligent. The real power of machine learning resides in its algorithms, which make even the most difficult things capable of being handled by machines. However, with the advancement in the technology and requirements of data, machines will have to be smarter than they are today to meet the overwhelming data needs; mastering these algorithms and using them optimally is the need of the hour. Mastering Machine Learning Algorithms is your complete guide to quickly getting to grips with popular machine learning algorithms. You will be introduced to the most widely used algorithms in supervised, unsupervised, and semi-supervised machine learning, and will learn how to use them in the best possible manner. Ranging from Bayesian models to the MCMC algorithm to Hidden Markov models, this book will teach you how to extract features from your dataset and perform dimensionality reduction by making use of Python-based libraries such as scikit-learn v0.19.1. You will also learn how to use Keras and TensorFlow 1.x to train effective neural networks. If you are looking for a single resource to study, implement, and solve end-to-end machine learning problems and use-cases, this is the book you need.
Table of Contents (17 chapters)
close
13
Deep Belief Networks

Multilayer perceptrons


The main limitation of a perceptron is its linearity. How is it possible to exploit this kind of architecture by removing such a constraint? The solution is easier than any speculation. Adding at least a non-linear layer between input and output leads to a highly non-linear combination, parametrized with a larger number of variables. The resulting architecture, called Multilayer Perceptron (MLP) and containing a single (only for simplicity) Hidden Layer, is shown in the following diagram:

This is a so-called feed-forward network, meaning that the flow of information begins in the first layer, proceeds always in the same direction and ends at the output layer. Architectures that allow a partial feedback (for example, in order to implement a local memory) are called recurrentnetworks and will be analyzed in the next chapter.

In this case, there are two weight matrices, W and H, and two corresponding bias vectors, b and c. If there are m hidden neurons, xi ∈ ℜn × 1 (column...

bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete