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STOAT: Spatial-Temporal Probabilistic Causal Inference Network

  • STOAT (Spatial-Temporal Probabilistic Causal Inference Network) is a novel framework for probabilistic forecasting in spatial-temporal causal time series (STC-TS) with region-specific temporal observations driven by causally relevant covariates.
  • The proposed method incorporates a spatial relation matrix to encode interregional dependencies, improving spatially informed causal effect estimation and calibrated uncertainty modeling.
  • STOAT utilizes deep probabilistic models to estimate distribution parameters and explores multiple output distributions to capture region-specific variability.
  • Experiments on COVID-19 data from six countries show that STOAT outperforms existing probabilistic forecasting models like DeepAR, DeepVAR, and Deep State Space Model, especially in regions with strong spatial dependencies.
  • The framework bridges causal inference and geospatial probabilistic forecasting, offering a versatile approach for complex spatial-temporal tasks such as epidemic management.

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