Bayesian Design for Sampling Anomalous Spatio-Temporal Data

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This study introduces a Bayesian optimal experimental design framework with anomaly detection methods to improve data quality for sensor arrays, demonstrating its effectiveness in simulated spatial and spatio-temporal datasets.

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This preprint develops a robust Bayesian optimal experimental design (BOED) framework that incorporates anomaly generation, anomaly detection, and an error-scoring step when searching for sampling designs for spatio-temporal sensor data. Using two simulated case studies—one spatial dataset and one spatio-temporal river network—the authors compare their approach to a baseline prediction-based utility that minimizes errors, and show a trade-off between predictive accuracy and anomaly-detection performance across design scenarios. The main caveat explicitly noted is that the work is a preprint and has not been peer reviewed by a journal. Relevance to endometriosis: the paper’s corpus inclusion is via an upstream keyword match on “optimal experimental design” and “anomaly detection” rather than any specific discussion of endometriosis or adenomyosis.

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Abstract

Abstract Data collected from arrays of sensors are essential for informed decision-making in various systems. However, the presence of anomalies can compromise the accuracy and reliability of insights drawn from the collected data or information obtained via statistical analysis. This study aims to develop a robust Bayesian optimal experimental design (BOED) framework with anomaly detection methods for high-quality data collection. We introduce a general framework that involves anomaly generation, detection and error scoring when searching for an optimal design. This method is demonstrated using two comprehensive simulated case studies: the first study uses a spatial dataset, and the second uses a spatio-temporal river network dataset. As a baseline approach, we employed a commonly used prediction-based utility function based on minimising errors. Results illustrate the trade-off between predictive accuracy and anomaly detection performance for our method under various design scenarios. An optimal design robust to anomalies ensures the collection and analysis of more trustworthy data, playing a crucial role in understanding the dynamics of complex systems such as the environment, therefore enabling informed decisions in monitoring, management, and response.
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However, the presence of anomalies can compromise the accuracy and reliability of insights drawn from the collected data or information obtained via statistical analysis. This study aims to develop a robust Bayesian optimal experimental design (BOED) framework with anomaly detection methods for high-quality data collection. We introduce a general framework that involves anomaly generation, detection and error scoring when searching for an optimal design. This method is demonstrated using two comprehensive simulated case studies: the first study uses a spatial dataset, and the second uses a spatio-temporal river network dataset. As a baseline approach, we employed a commonly used prediction-based utility function based on minimising errors. Results illustrate the trade-off between predictive accuracy and anomaly detection performance for our method under various design scenarios. An optimal design robust to anomalies ensures the collection and analysis of more trustworthy data, playing a crucial role in understanding the dynamics of complex systems such as the environment, therefore enabling informed decisions in monitoring, management, and response. nomaly Detection Bayesian Design Optimal Experimental Design Robust Design Sensor Data Spatio-temporal Model Spatial Model Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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