Search Results for author: Bang Xiang Yong

Found 6 papers, 2 papers with code

Bayesian autoencoders with uncertainty quantification: Towards trustworthy anomaly detection

no code implementations25 Feb 2022 Bang Xiang Yong, Alexandra Brintrup

Despite numerous studies of deep autoencoders (AEs) for unsupervised anomaly detection, AEs still lack a way to express uncertainty in their predictions, crucial for ensuring safe and trustworthy machine learning systems in high-stake applications.

Uncertainty Quantification Unsupervised Anomaly Detection

Do autoencoders need a bottleneck for anomaly detection?

no code implementations25 Feb 2022 Bang Xiang Yong, Alexandra Brintrup

Learning the identity function renders the AEs useless for anomaly detection.

Anomaly Detection

Coalitional Bayesian Autoencoders -- Towards explainable unsupervised deep learning

no code implementations19 Oct 2021 Bang Xiang Yong, Alexandra Brintrup

This paper aims to improve the explainability of Autoencoder's (AE) predictions by proposing two explanation methods based on the mean and epistemic uncertainty of log-likelihood estimate, which naturally arise from the probabilistic formulation of the AE called Bayesian Autoencoders (BAE).

Specificity

Bayesian Autoencoders: Analysing and Fixing the Bernoulli likelihood for Out-of-Distribution Detection

1 code implementation28 Jul 2021 Bang Xiang Yong, Tim Pearce, Alexandra Brintrup

After an autoencoder (AE) has learnt to reconstruct one dataset, it might be expected that the likelihood on an out-of-distribution (OOD) input would be low.

Out-of-Distribution Detection

Multi Agent System for Machine Learning Under Uncertainty in Cyber Physical Manufacturing System

no code implementations28 Jul 2021 Bang Xiang Yong, Alexandra Brintrup

In this paper, we determine the sources of uncertainty in machine learning and establish the success criteria of a machine learning system to function well under uncertainty in a cyber-physical manufacturing system (CPMS) scenario.

BIG-bench Machine Learning

Bayesian Autoencoders for Drift Detection in Industrial Environments

1 code implementation28 Jul 2021 Bang Xiang Yong, Yasmin Fathy, Alexandra Brintrup

Autoencoders are unsupervised models which have been used for detecting anomalies in multi-sensor environments.

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