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Probabilistic Neural Networks (PNNs) for Modeling Aleatoric Uncertainty in Scientific Machine Learning
Feb. 22, 2024, 5:42 a.m. | Farhad Pourkamali-Anaraki, Jamal F. Husseini, Scott E. Stapleton
cs.LG updates on arXiv.org arxiv.org
Abstract: This paper investigates the use of probabilistic neural networks (PNNs) to model aleatoric uncertainty, which refers to the inherent variability in the input-output relationships of a system, often characterized by unequal variance or heteroscedasticity. Unlike traditional neural networks that produce deterministic outputs, PNNs generate probability distributions for the target variable, allowing the determination of both predicted means and intervals in regression scenarios. Contributions of this paper include the development of a probabilistic distance metric to …
abstract arxiv cs.ai cs.lg input-output machine machine learning modeling networks neural networks paper relationships stat.ml type uncertainty variance
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