Build Your First PyTorch Model (Linear Regression)
Ryan & Matt Data Science
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Build Your First PyTorch Model (Linear Regression)
8 865 просмотров · 2 г. назад
Ryan & Matt Data Science
46,8 тыс. подписчиков
8 865 просмотров · 2 г. назад
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In this step-by-step tutorial, we dive into the fundamentals of building your first PyTorch model, focusing on Linear Regression. Whether you're new to PyTorch or looking to solidify your understanding, this video is designed to guide beginners through the process of creating a simple yet powerful machine learning model.
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In this comprehensive PyTorch tutorial, I walk you through building your very first linear regression model from scratch. This is the perfect starting point if you're new to deep learning and PyTorch. I go line-by-line through every step, explaining data preparation, normalization, model architecture, training loops, and making predictions.
We start by generating synthetic data and transforming it into tensors, then build a custom LinearRegressionModel class using nn.Module. You'll learn about forward passes, loss functions (MSE), optimizers (SGD), and the backward pass with gradient descent. I also cover essential PyTorch concepts like tensor shapes, data normalization, and denormalization for real predictions.
By the end of this video, you'll understand how to create a complete PyTorch training loop, evaluate your model, and visualize results using matplotlib. This is the first video in my new PyTorch series, so subscribe to follow along as we build more complex deep learning models together. If you're transitioning from data analysis to data science or machine learning, this tutorial series is designed specifically for you.
TIMESTAMPS
00:00 Introduction to PyTorch Linear Regression
01:00 Importing Libraries & Setup
02:20 Generating Training Data
03:40 Reshaping Data for PyTorch
05:40 Visualizing Initial Data
07:40 Normalizing Data
10:20 Creating Tensors from NumPy Arrays
11:40 Building the Linear Regression Model Class
14:00 Defining Criterion and Optimizer
16:00 Training Loop Setup
18:40 Forward Pass and Loss Calculation
20:40 Backward Pass and Optimization
23:40 Making Predictions with New Data
26:20 Denormalizing Predictions
28:40 Visualizing PyTorch Results
31:00 Full Recap and Explanation
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Who is Ryan
Ryan is a Data Scientist at a fintech company, where he focuses on fraud prevention in underwriting and risk. Before that, he worked as a Data Analyst at a tax software company. He holds a degree in Electrical Engineering from UCF.
Who is Matt
Matt is the founder of Width.ai, an AI and Machine Learning agency. Before starting his own company, he was a Machine Learning Engineer at Capital One.
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