Articles About Machine Learning

Building a Softmax Classifier for Images in PyTorch

Softmax classifier is a type of classifier in supervised learning. It is an important building block in deep learning networks and the most popular choice among deep learning practitioners. Softmax classifier is suitable for multiclass classification, which outputs the probability for each of the classes. This tutorial will teach you how to build a softmax classifier for images data. You will learn how to prepare the dataset, and then learn how to implement softmax classifier using PyTorch. Particularly, you’ll learn: […]

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Building a Single Layer Neural Network in PyTorch

A neural network is a set of neuron nodes that are interconnected with one another. The neurons are not just connected to their adjacent neurons but also to the ones that are farther away. The main idea behind neural networks is that every neuron in a layer has one or more input values, and they produce output values by applying some mathematical functions to the input. The outputs of the neurons in one layer become the inputs for the next […]

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Neural Network with More Hidden Neurons

The traditional model of neural network is called multilayer perceptrons. They are usually made up of a series of interconnected layers. The input layer is where the data enters the network, and the output layer is where the network delivers the output. The input layer is usually connected to one or more hidden layers, which modify and process the data before it reaches the output layer. The hidden layers are what make neural networks so powerful: they can learn complicated […]

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Manipulating Tensors in PyTorch

PyTorch is a deep-learning library. Just like some other deep learning libraries, it applies operations on numerical arrays called tensors. In the simplest terms, tensors are just multidimensional arrays. When we deal with the tensors, some operations are used very often. In PyTorch, there are some functions defined specifically for dealing with tensors. In the following, we will give a brief overview of what PyTorch provides on tensors and how we can use them. After finishing this tutorial, you will […]

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Using Autograd in PyTorch to Solve a Regression Problem

We usually use PyTorch to build a neural network. However, PyTorch can do more than this. Because PyTorch is also a tensor library with automatic differentiation capability, you can easily use it to solve a numerical optimization problem with gradient descent. In this post, you will learn how PyTorch’s automatic differentiation engine, autograd, works. After finishing this tutorial, you will learn: What is autograd in PyTorch How to make use of autograd and an optimizer to solve an optimization problem […]

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Building Multilayer Perceptron Models in PyTorch

The PyTorch library is for deep learning. Deep learning, indeed, is just another name for a large-scale neural network or multilayer perceptron network. In its simplest form, multilayer perceptrons are a sequence of layers connected in tandem. In this post, you will discover the simple components you can use to create neural networks and simple deep learning models in PyTorch. Kick-start your project with my book Deep Learning with PyTorch. It provides self-study tutorials with working code. Let’s get started. […]

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Develop Your First Neural Network with PyTorch, Step by Step

PyTorch is a powerful Python library for building deep learning models. It provides everything you need to define and train a neural network and use it for inference. You don’t need to write much code to complete all this. In this pose, you will discover how to create your first deep learning neural network model in Python using PyTorch. After completing this post, you will know: How to load a CSV dataset and prepare it for use with PyTorch How […]

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Creating a Training Loop for PyTorch Models

PyTorch provides a lot of building blocks for a deep learning model, but a training loop is not part of them. It is a flexibility that allows you to do whatever you want during training, but some basic structure is universal across most use cases. In this post, you will see how to make a training loop that provides essential information for your model training, with the option to allow any information to be displayed. After completing this post, you […]

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How to Evaluate the Performance of PyTorch Models

Designing a deep learning model is sometimes an art. There are a lot of decision points, and it is not easy to tell what is the best. One way to come up with a design is by trial and error and evaluating the result on real data. Therefore, it is important to have a scientific method to evaluate the performance of your neural network and deep learning models. In fact, it is also the same method to compare any kind […]

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Building a Multiclass Classification Model in PyTorch

The PyTorch library is for deep learning. Some applications of deep learning models are used to solve regression or classification problems. In this tutorial, you will discover how to use PyTorch to develop and evaluate neural network models for multi-class classification problems. After completing this step-by-step tutorial, you will know: How to load data from CSV and make it available to PyTorch How to prepare multi-class classification data for modeling with neural networks How to use cross validation to evaluate […]

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