A comprehensive survey of anomaly detection algorithms

D Samariya, A Thakkar - Annals of Data Science, 2023 - Springer
Anomaly or outlier detection is consider as one of the vital application of data mining, which
deals with anomalies or outliers. Anomalies are considered as data points that are …

A new effective and efficient measure for outlying aspect mining

D Samariya, S Aryal, KM Ting, J Ma - … 20–24, 2020, Proceedings, Part II …, 2020 - Springer
Abstract Outlying Aspect Mining (OAM) aims to find the subspaces (aka aspects) in which a
given query is an outlier with respect to a given data set. Existing OAM algorithms use …

usfAD: a robust anomaly detector based on unsupervised stochastic forest

S Aryal, KC Santosh, R Dazeley - International Journal of Machine …, 2021 - Springer
In real-world applications, data can be represented using different units/scales. For example,
weight in kilograms or pounds and fuel-efficiency in km/l or l/100 km. One unit can be a …

[图书][B] When jihadi ideology meets social media

J Ammar, S Xu - 2018 - Springer
In response to its rapid territorial gains in Syria and Iraq and due to its brutality and human
rights abuses, on September 10, 2014, Barack Obama, then President of the United States …

Identifying and clustering users for unsupervised intrusion detection in corporate audit sessions

M Garchery, M Granitzer - 2019 IEEE International Conference …, 2019 - ieeexplore.ieee.org
We address intrusion detection in audit sessions, focusing on masquerades and insider
threats. Unsupervised intrusion detection can straightforwardly be addressed through …

Uncertainty quantification for machine learning output assurance using anomaly-based dataset dissimilarity measures

G Incorvaia, D Hond, H Asgari - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
The use of Machine Learning (ML) models as predictive tools has increased dramatically in
recent years. However, data-driven systems (such as ML models) exhibit a degree of …

Factor analysis of mixed data for anomaly detection

M Davidow, DS Matteson - … Analysis and Data Mining: The ASA …, 2022 - Wiley Online Library
Anomaly detection aims to identify observations that deviate from the typical pattern of data.
Anomalous observations may correspond to financial fraud, health risks, or incorrectly …

Anomaly detection on health data

D Samariya, J Ma - International Conference on Health Information …, 2022 - Springer
The identification of anomalous records in medical data is an important problem with
numerous applications such as detecting anomalous reading, anomalous patient health …

Uncertainty Quantification of Machine Learning Model Performance via Anomaly-Based Dataset Dissimilarity Measures

G Incorvaia, D Hond, H Asgari - Electronics, 2024 - mdpi.com
The use of Machine Learning (ML) models as predictive tools has increased dramatically in
recent years. However, data-driven systems (such as ML models) exhibit a degree of …

Ensemble of local decision trees for anomaly detection in mixed data

S Aryal, JR Wells - Machine Learning and Knowledge Discovery in …, 2021 - Springer
Anomaly Detection (AD) is used in many real-world applications such as cybersecurity,
banking, and national intelligence. Though many AD algorithms have been proposed in the …