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Debugging Machine Learning Models with Python

Debugging Machine Learning Models with Python

By : Ali Madani
4.9 (16)
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Debugging Machine Learning Models with Python

Debugging Machine Learning Models with Python

4.9 (16)
By: Ali Madani

Overview of this book

Debugging Machine Learning Models with Python is a comprehensive guide that navigates you through the entire spectrum of mastering machine learning, from foundational concepts to advanced techniques. It goes beyond the basics to arm you with the expertise essential for building reliable, high-performance models for industrial applications. Whether you're a data scientist, analyst, machine learning engineer, or Python developer, this book will empower you to design modular systems for data preparation, accurately train and test models, and seamlessly integrate them into larger technologies. By bridging the gap between theory and practice, you'll learn how to evaluate model performance, identify and address issues, and harness recent advancements in deep learning and generative modeling using PyTorch and scikit-learn. Your journey to developing high quality models in practice will also encompass causal and human-in-the-loop modeling and machine learning explainability. With hands-on examples and clear explanations, you'll develop the skills to deliver impactful solutions across domains such as healthcare, finance, and e-commerce.
Table of Contents (26 chapters)
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1
Part 1:Debugging for Machine Learning Modeling
5
Part 2:Improving Machine Learning Models
10
Part 3:Low-Bug Machine Learning Development and Deployment
15
Part 4:Deep Learning Modeling
19
Part 5:Advanced Topics in Model Debugging

Bias and variance diagnosis

We aim to have a model with high performance, or low error, in the training set (that is, a low bias model) while keeping the performance high, or error low, for new data points (that is, a low variance model). As we don’t have access to unseen new data points, we must use validation and test sets to assess the variance or generalizability of our models. Model complexity is one of the important factors in determining the bias and variance of machine learning models. By increasing complexity, we let a model learn more complex patterns in training data that could reduce training errors or model bias (Figure 4.9):

Figure 4.9 – Error versus model complexity for (A) high bias, (B) high variance, and (C, D) two different cases of low bias and low variance models

Figure 4.9 – Error versus model complexity for (A) high bias, (B) high variance, and (C, D) two different cases of low bias and low variance models

This decrease in error helps build a better model, even for new data points. However, this trend changes after a point, and higher complexities could cause overfitting...

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