Increasing the Robustness of Model Predictions to Missing Sensors in Earth Observation

• URL: http://arxiv.org/abs/2407.15512v2
• Date: Wed, 4 Sep 2024 11:01:47 GMT
• Title: Increasing the Robustness of Model Predictions to Missing Sensors in Earth Observation
• Authors: Francisco Mena, Diego Arenas, Andreas Dengel,
• Abstract summary: We study two novel methods tailored for multi-sensor scenarios, namely Input Sensor Dropout (ISensD) and Ensemble Sensor Invariant (ESensI) We demonstrate that these methods effectively increase the robustness of model predictions to missing sensors. We observe that ensemble multi-sensor models are the most robust to the lack of sensors.
• Score: 5.143097874851516
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Multi-sensor ML models for EO aim to enhance prediction accuracy by integrating data from various sources. However, the presence of missing data poses a significant challenge, particularly in non-persistent sensors that can be affected by external factors. Existing literature has explored strategies like temporal dropout and sensor-invariant models to address the generalization to missing data issues. Inspired by these works, we study two novel methods tailored for multi-sensor scenarios, namely Input Sensor Dropout (ISensD) and Ensemble Sensor Invariant (ESensI). Through experimentation on three multi-sensor temporal EO datasets, we demonstrate that these methods effectively increase the robustness of model predictions to missing sensors. Particularly, we focus on how the predictive performance of models drops when sensors are missing at different levels. We observe that ensemble multi-sensor models are the most robust to the lack of sensors. In addition, the sensor dropout component in ISensD shows promising robustness results.

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