Relaxed Quantile Regression: Prediction Intervals for Asymmetric Noise
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Abstract (arXiv)
Constructing valid prediction intervals rather than point estimates is a well-established approach for uncertainty quantification in the regression setting. Models equipped with this capacity output an interval of values in which the ground truth target will fall with some prespecified probability. This is an essential requirement in many real-world applications where simple point predictions' inability to convey the magnitude and frequency of errors renders them insufficient for high-stakes decisions. Quantile regression is a leading approach for obtaining such intervals via the empirical estimation of quantiles in the (non-parametric) distribution of outputs. This method is simple, computationally inexpensive, interpretable, assumption-free, and effective. However, it does require that the specific quantiles being learned are chosen a priori. This results in (a) intervals that are arbitrarily symmetric around the median which is sub-optimal for realistic skewed distributions, or (b) learning an excessive number of intervals. In this work, we propose Relaxed Quantile Regression (RQR), a direct alternative to quantile regression based interval construction that removes this arbitrary constraint whilst maintaining its strengths. We demonstrate that this added flexibility results in intervals with an improvement in desirable qualities (e.g. mean width) whilst retaining the essential coverage guarantees of quantile regression.
Key facts. Cited by 8 papers in the map (data through 7 Oct 2026). Builds on 40 of its 88 references that are in the map. First posted on arXiv 5 Jun 2024.
Builds on
40 of 88 references.
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Built on by
Citing papers per year: 2024: 2; 2025: 2; 2026: 4.
8 papers.
- 2024Utility-Directed Conformal Prediction: A Decision-Aware Framework for Actionable Uncertainty Quantificationcited by 11
- 2025Introducing Interval Neural Networks for Uncertainty-Aware System Identificationcited by 3
- 2026Direct Interval Propagation Methods using Neural-Network Surrogates for Uncertainty Quantification in Physical Systems Surrogate Modelcited by 3
- 2024Tube Loss: A Novel Approach for Prediction Interval Estimationcited by 2
- 2025A Convex Loss Function for Set Prediction with Optimal Trade-offs Between Size and Conditional Coveragecited by 2
- 2026Geometry of tail allocation in conformal prediction intervalscited by 0
- 2026Quantile-Free Uncertainty Quantification in Graph Neural Networkscited by 0
- 2026Beyond Prediction: Interval Neural Networks for Uncertainty-Aware System Identificationcited by 0
- 2026Beyond Prediction: Interval Neural Networks for Uncertainty-Aware System Identification12 May 2026
- 2026Quantile-Free Uncertainty Quantification in Graph Neural Networks6 May 2026
- 2026Geometry of tail allocation in conformal prediction intervals28 Apr 2026
- 2026Direct Interval Propagation Methods using Neural-Network Surrogates for Uncertainty Quantification in Physical Systems Surrogate Model22 Mar 2026
- 2025A Convex Loss Function for Set Prediction with Optimal Trade-offs Between Size and Conditional Coverage22 Dec 2025
- 2025Introducing Interval Neural Networks for Uncertainty-Aware System Identification26 Apr 2025
- 2024Tube Loss: A Novel Approach for Prediction Interval Estimation8 Dec 2024
- 2024Utility-Directed Conformal Prediction: A Decision-Aware Framework for Actionable Uncertainty Quantification2 Oct 2024