Book Image

Interpretable Machine Learning with Python

By : Serg Masís
Book Image

Interpretable Machine Learning with Python

By: Serg Masís

Overview of this book

Do you want to gain a deeper understanding of your models and better mitigate poor prediction risks associated with machine learning interpretation? If so, then Interpretable Machine Learning with Python deserves a place on your bookshelf. We’ll be starting off with the fundamentals of interpretability, its relevance in business, and exploring its key aspects and challenges. As you progress through the chapters, you'll then focus on how white-box models work, compare them to black-box and glass-box models, and examine their trade-off. You’ll also get you up to speed with a vast array of interpretation methods, also known as Explainable AI (XAI) methods, and how to apply them to different use cases, be it for classification or regression, for tabular, time-series, image or text. In addition to the step-by-step code, this book will also help you interpret model outcomes using examples. You’ll get hands-on with tuning models and training data for interpretability by reducing complexity, mitigating bias, placing guardrails, and enhancing reliability. The methods you’ll explore here range from state-of-the-art feature selection and dataset debiasing methods to monotonic constraints and adversarial retraining. By the end of this book, you'll be able to understand ML models better and enhance them through interpretability tuning.
Table of Contents (19 chapters)
1
Section 1: Introduction to Machine Learning Interpretation
5
Section 2: Mastering Interpretation Methods
12
Section 3:Tuning for Interpretability

Comparing with CEM

The Contrastive Explanation Method (CEM) is similar to both anchors and counterfactuals since it explains predictions using what is present (such as anchors) and absent (such as counterfactuals). It calls what is present Pertinent Positives (PPs) and what is absent Pertinent Negatives (PNs). However, the difference is that PPs are qualified as being minimally and sufficiently present to predict the same class. Likewise, PNs are minimally and necessarily absent to predict the opposite class. Therefore, CEM works best with continuous and ordinal features because it expects to subtract from features until it reaches the desired outcome. For this reason, it doesn't know how to deal with non-monotonic continuous, non-ordinal, categorical, or even binary, features, for that matter, and our recidivism dataset only has this kind of feature! Admittedly, this chapter's example doesn't make for an ideal CEM use case. We will touch on CEM in subsequent chapters...