arXiv Machine Learning By Junghwan Lee, Jonghyeok Lee, Yao Xie

Conformal Prediction for Time Series with Deep Sequence Models

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The paper investigates how deep sequence models—such as recurrent neural networks and Transformers—can be integrated into conformal prediction for time series. It explores three methods: conditional quantile regression, conditional quantile function estimation, and localized conformal prediction, providing theoretical asymptotic conditional coverage guarantees for each. Experiments on real-world datasets demonstrate the practical effectiveness of these approaches.

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arXiv AI
Aug 19

SPACE: Sample-cloud Predictive Adaptive Conformal Ellipsoids for Multivariate Time-Series Forecasting

SPACE is a conformal wrapper that creates ellipsoidal joint prediction regions for multivariate time‑series forecasts by estimating time‑local covariance directly from the current forecast sample cloud. It calibrates the region’s radius using a dynamic backward window‑selection scheme, avoiding reliance on historical residuals. Experiments on diverse datasets show that SPACE improves joint and rolling coverage, achieving better coverage‑efficiency tradeoffs than existing wrappers.

By Baishi Li, Kelvin J. L. Koa, Ke-Wei Huang
arXiv Machine Learning
Jul 1

On Optimal Data Splitting for Split Conformal Prediction

arXiv:2606. 31600v1 Announce Type: cross Abstract: Conformal prediction and its variants, including the split conformal prediction, provide a distribution-free framework for uncertainty quantification by constructing prediction intervals or sets with finite-sample coverage guarantees.

By Sayan Das, Bahram Yaghooti, Todd A. Kuffner, Soumendra N. Lahiri