Book Image

Applied Machine Learning Explainability Techniques

By : Aditya Bhattacharya
Book Image

Applied Machine Learning Explainability Techniques

By: Aditya Bhattacharya

Overview of this book

Explainable AI (XAI) is an emerging field that brings artificial intelligence (AI) closer to non-technical end users. XAI makes machine learning (ML) models transparent and trustworthy along with promoting AI adoption for industrial and research use cases. Applied Machine Learning Explainability Techniques comes with a unique blend of industrial and academic research perspectives to help you acquire practical XAI skills. You'll begin by gaining a conceptual understanding of XAI and why it's so important in AI. Next, you'll get the practical experience needed to utilize XAI in AI/ML problem-solving processes using state-of-the-art methods and frameworks. Finally, you'll get the essential guidelines needed to take your XAI journey to the next level and bridge the existing gaps between AI and end users. By the end of this ML book, you'll be equipped with best practices in the AI/ML life cycle and will be able to implement XAI methods and approaches using Python to solve industrial problems, successfully addressing key pain points encountered.
Table of Contents (16 chapters)
1
Section 1 – Conceptual Exposure
5
Section 2 – Practical Problem Solving
12
Section 3 –Taking XAI to the Next Level

Chapter 6: Model Interpretability Using SHAP

In the previous two chapters, we explored model-agnostic local explainability using the LIME framework to explain black-box models. We also discussed certain limitations of the LIME approach, even though it remains one of the most popular Explainable AI (XAI) algorithms. In this chapter, we will cover SHapley Additive exPlanation (SHAP), which is another popular XAI framework that can provide model-agnostic local explainability for tabular, image, and text datasets.

SHAP is based on Shapley values, which is a concept popularly used in Game Theory (https://c3.ai/glossary/data-science/shapley-values/). Although the mathematical understanding of Shapley values can be complicated, I will provide a simple, intuitive understanding of Shapley values and SHAP and focus more on the practical aspects of the framework. Similar to LIME, SHAP also has its pros and cons, which we are going to discuss in this chapter. This chapter will cover one practical...