Graph Neural Networks for Anomaly Detection in Industrial IoT – Complete Phd and Masters Thesis

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Introduction

Graph Neural Networks (GNNs) have emerged as a powerful tool in the field of anomaly detection in Industrial Internet of Things (IIoT) applications. With the increasing complexity and interconnectedness of industrial systems, traditional methods of anomaly detection are often insufficient in identifying subtle and evolving anomalies. GNNs offer a unique advantage in capturing complex relationships and dependencies among data points, making them well-suited for detecting anomalies in highly dynamic industrial environments.

Background of Study

The rapid growth of IIoT systems has led to an exponential increase in the amount of data generated by industrial sensors and devices. Traditional anomaly detection techniques, such as statistical methods and machine learning algorithms, struggle to effectively analyze and detect anomalies in such large and complex datasets. GNNs have shown great promise in learning the underlying structure of data, making them a promising approach for anomaly detection in IIoT applications.

Problem Statement

The detection of anomalies in IIoT systems is crucial for ensuring the reliability and safety of industrial operations. However, existing anomaly detection methods often fail to accurately detect anomalies in complex and highly interconnected industrial networks. There is a need for more robust and effective anomaly detection techniques that can adapt to the dynamic nature of IIoT systems.

Objective of Study

This thesis aims to explore the use of GNNs for anomaly detection in Industrial IoT applications. The primary objective is to develop a novel anomaly detection framework that leverages the power of GNNs to effectively identify anomalies in complex industrial systems. The study will investigate the performance of GNN-based anomaly detection methods and compare them with traditional anomaly detection techniques.

Limitation of Study

The study is limited by the availability of labeled data for training and testing GNN models. Additionally, the complexity and variability of industrial systems may pose challenges in accurately defining and detecting anomalies.

Scope of Study

The scope of this study is focused on the application of GNNs for anomaly detection in IIoT systems. The study will explore different GNN architectures and techniques for anomaly detection and evaluate their performance on real-world industrial datasets.

Significance of Study

The findings of this study have the potential to significantly impact the field of anomaly detection in IIoT applications. By leveraging the capabilities of GNNs, industrial organizations can improve the reliability and efficiency of their monitoring and detection systems, leading to enhanced operational safety and productivity.

Structure of the Thesis

Chapter One: Introduction
1.1 Introduction
1.2 Background of Study
1.3 Problem Statement
1.4 Objective of Study
1.5 Limitation of Study
1.6 Scope of Study
1.7 Significance of Study
1.8 Structure of the Thesis
1.9 Definition of Terms

Chapter Two: Literature Review
2.1 Introduction to Anomaly Detection
2.2 Traditional Anomaly Detection Methods
2.3 Graph Neural Networks
2.4 Applications of GNNs in Anomaly Detection
2.5 Challenges in Anomaly Detection in IIoT
2.6 Current Trends in Industrial Anomaly Detection
2.7 Gaps in Existing Literature
2.8 Theoretical Framework of GNNs
2.9 Evaluation Metrics for Anomaly Detection
2.10 Summary of Literature Review

Chapter Three: Research Methodology
3.1 Introduction
3.2 Data Collection and Preprocessing
3.3 GNN Model Selection
3.4 Training and Testing Procedures
3.5 Performance Evaluation Metrics
3.6 Experiment Design
3.7 Ethical Considerations
3.8 Data Analysis Techniques
3.9 Limitations of Research Methodology

Chapter Four: Discussion of Findings
4.1 Introduction
4.2 Performance Evaluation Results
4.3 Comparison with Traditional Methods
4.4 Interpretation of Results
4.5 Implications for IIoT Applications
4.6 Recommendations for Future Research
4.7 Potential Challenges and Limitations
4.8 Practical Implications

Chapter Five: Conclusion and Summary
5.1 Summary of Findings
5.2 Contributions to Anomaly Detection Research
5.3 Practical Implications
5.4 Future Research Directions
5.5 Conclusion

Thesis Overview on Graph Neural Networks for Anomaly Detection in Industrial IoT

The use of Graph Neural Networks (GNNs) for anomaly detection in Industrial Internet of Things (IIoT) applications has gained significant attention in recent years. This thesis aims to investigate the effectiveness of GNNs in detecting anomalies in complex and interconnected industrial systems. By leveraging the unique capabilities of GNNs to capture relationships and dependencies among data points, this study seeks to develop a novel anomaly detection framework for IIoT applications.

Chapter One provides an introduction to the study, outlining the background of the research, problem statement, objectives, limitations, scope, significance, and structure of the thesis. The chapter also includes a definition of key terms relevant to the study.

Chapter Two presents a comprehensive literature review on anomaly detection, traditional methods, GNNs, applications of GNNs in anomaly detection, challenges in IIoT anomaly detection, current trends, theoretical framework of GNNs, evaluation metrics, and gaps in the existing literature.

Chapter Three discusses the research methodology, including data collection and preprocessing, GNN model selection, training and testing procedures, performance evaluation metrics, experiment design, ethical considerations, data analysis techniques, and limitations of the research methodology.

Chapter Four delves into the discussion of findings, including performance evaluation results, comparison with traditional methods, interpretation of results, implications for IIoT applications, recommendations for future research, potential challenges, and practical implications.

Chapter Five concludes the thesis by summarizing the findings, highlighting contributions to anomaly detection research, discussing practical implications, suggesting future research directions, and providing a conclusion. Through this study, we aim to contribute to the advancement of anomaly detection techniques in IIoT applications and provide insights for industrial organizations seeking to enhance the reliability and efficiency of their monitoring and detection systems.

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