Book Image

Deep Learning and XAI Techniques for Anomaly Detection

By : Cher Simon
Book Image

Deep Learning and XAI Techniques for Anomaly Detection

By: Cher Simon

Overview of this book

Despite promising advances, the opaque nature of deep learning models makes it difficult to interpret them, which is a drawback in terms of their practical deployment and regulatory compliance. Deep Learning and XAI Techniques for Anomaly Detection shows you state-of-the-art methods that’ll help you to understand and address these challenges. By leveraging the Explainable AI (XAI) and deep learning techniques described in this book, you’ll discover how to successfully extract business-critical insights while ensuring fair and ethical analysis. This practical guide will provide you with tools and best practices to achieve transparency and interpretability with deep learning models, ultimately establishing trust in your anomaly detection applications. Throughout the chapters, you’ll get equipped with XAI and anomaly detection knowledge that’ll enable you to embark on a series of real-world projects. Whether you are building computer vision, natural language processing, or time series models, you’ll learn how to quantify and assess their explainability. By the end of this deep learning book, you’ll be able to build a variety of deep learning XAI models and perform validation to assess their explainability.
Table of Contents (15 chapters)
1
Part 1 – Introduction to Explainable Deep Learning Anomaly Detection
4
Part 2 – Building an Explainable Deep Learning Anomaly Detector
8
Part 3 – Evaluating an Explainable Deep Learning Anomaly Detector

Understanding faithfulness and monotonicity

Faithfulness in XAI refers to evaluating the correlation between feature importance scores to the actual individual feature’s performance effect on a correct prediction. Measuring faithfulness is typically done by removing pre-determined important features incrementally, observing changes in model performance, and validating feature relevance to a model’s prediction. In other words, are the identified important features genuinely relevant to the final model output?

Besides feature importance correlation, researchers identified additional properties such as polarity consistency for evaluating the faithfulness of explanations, https://doi.org/10.48550/arXiv.2201.12114. Polarity in ML refers to positive and negative analysis – for example, the amount of positive and negative phrases for sentiment analysis. Polarity consistency validates faithfulness by measuring explanation weight based on their contribution and suppression...