Anomaly detection methods for categorical data: A review

A Taha, AS Hadi - ACM Computing Surveys (CSUR), 2019 - dl.acm.org
Anomaly detection has numerous applications in diverse fields. For example, it has been
widely used for discovering network intrusions and malicious events. It has also been used …

[HTML][HTML] Deep learning for pedestrian collective behavior analysis in smart cities: A model of group trajectory outlier detection

A Belhadi, Y Djenouri, G Srivastava, D Djenouri… - Information …, 2021 - Elsevier
This paper introduces a new model to identify collective abnormal human behaviors from
large pedestrian data in smart cities. To accurately solve the problem, several algorithms …

Integrated inspection on PCB manufacturing in cyber–physical–social systems

Y Wang, J Wang, Y Cao, S Li… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The printed circuit boards (PCBs) industry is one of the fastest-growing industries in recent
decades. The PCB manufacturing process is highly complicated and severely affected by …

Knowledge graph based trajectory outlier detection in sustainable smart cities

U Ahmed, G Srivastava, Y Djenouri, JCW Lin - Sustainable Cities and …, 2022 - Elsevier
Graph-based intelligent systems are emerging in the field of transportation systems.
Knowledge graphs help to provide semantic and interconnectivity capabilities to the …

Belief rule-base expert system with multilayer tree structure for complex problems modeling

LH Yang, FF Ye, J Liu, YM Wang - Expert Systems with Applications, 2023 - Elsevier
Belief rule-base (BRB) expert system is one of recognized and fast-growing approaches in
the areas of complex problems modeling. However, the conventional BRB has to suffer from …

Hybrid group anomaly detection for sequence data: Application to trajectory data analytics

A Belhadi, Y Djenouri, G Srivastava… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Many research areas depend on group anomaly detection. The use of group anomaly
detection can maintain and provide security and privacy to the data involved. This research …

Trajectory outlier detection: New problems and solutions for smart cities

Y Djenouri, D Djenouri, JCW Lin - ACM Transactions on Knowledge …, 2021 - dl.acm.org
This article introduces two new problems related to trajectory outlier detection:(1) group
trajectory outlier (GTO) detection and (2) deviation point detection for both individual and …

Attribute-weighted outlier detection for mixed data based on parallel mutual information

J Li, Z Liu - Expert Systems with Applications, 2024 - Elsevier
Outlier detection plays an important role in data mining because it can improve the
performance of data analysis. Most outlier detection algorithms focus on numerical or …

Multigranulation relative entropy-based mixed attribute outlier detection in neighborhood systems

Z Yuan, H Chen, T Li, X Zhang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Outlier detection is widely used in many fields, such as intrusion detection, credit card fraud
detection, medical diagnosis, and so on. Existing outlier detection algorithms are mostly …

A new density-based subspace selection method using mutual information for high dimensional outlier detection

M Riahi-Madvar, AA Azirani, B Nasersharif… - Knowledge-Based …, 2021 - Elsevier
Outlier detection in high dimensional data faces the challenge of curse of dimensionality,
where irrelevant features may prevent detection of outliers. In this research, we propose a …