학술논문

Model and Data Uncertainty for Satellite Time Series Forecasting with Deep Recurrent Models
Document Type
Conference
Source
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2020 - 2020 IEEE International. :7025-7028 Sep, 2020
Subject
Aerospace
Computing and Processing
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Uncertainty
Predictive models
Data models
Time series analysis
Forecasting
Vegetation mapping
Satellites
Climate change
Deep Learning
Recurrent Neural Networks
Satellite Time Series
Climate
Language
ISSN
2153-7003
Abstract
Deep Learning is often criticized as being a black-box method that provides accurate predictions, but a limited explanation of the underlying processes and no indication when to not trust those predictions. Equipping existing deep learning models with an (general) notion of uncertainty can help mitigate both these issues. The Bayesian deep learning community has developed model-agnostic methodology to estimate both data and model uncertainty that can be implemented on top of existing deep learning models. In this work, we test this methodology for deep recurrent satellite time series forecasting and test its assumptions on data and model uncertainty. We tested its effectiveness on an application on climate change where the activity of seasonal vegetation decreased over multiple years.