Title
Use of Uncertainty with Autoencoder Neural Networks for Anomaly Detection
Abstract
Autoencoders neural networks are nonlinear dimension reduction models widely used in the field of anomaly detection. Conventionally, the reconstruction error is considered as a score function allowing the discrimination between the normal data and the outliers. Recent advances in calculating uncertainty from neural networks open new perspectives in the field of anomaly detection. We study, for given models and different concentrations of anomalies, several score functions. We compare the standard score function based on the standard error, a score based on the error resulting from the Bayesian approximation, as well as score functions directly including the uncertainty. This paper empirically demonstrates how including uncertainty in the score function is likely to improve the performance of an autoencoder-based anomaly detection model.
Year
DOI
Venue
2019
10.1109/AIKE.2019.00014
2019 IEEE Second International Conference on Artificial Intelligence and Knowledge Engineering (AIKE)
Keywords
Field
DocType
Autoencoder Neural Network,Bayesian Neural Network,Prediction Uncertainty,Anomaly Detection
Anomaly detection,Autoencoder,Pattern recognition,Computer science,Outlier,Standard score,Artificial intelligence,Score,Artificial neural network,Standard error,Bayesian probability
Conference
ISBN
Citations 
PageRank 
978-1-7281-1489-7
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Adrien Legrand100.34
Alain Cournier228122.07
Alain Cournier300.34