Skip to yearly menu bar Skip to main content


Poster

Conformal Prediction via Regression-as-Classification

Etash Guha · Shlok Natarajan · Thomas Möllenhoff · Mohammad Emtiyaz Khan · Eugene Ndiaye

Halle B #297
[ ]
Tue 7 May 7:30 a.m. PDT — 9:30 a.m. PDT

Abstract:

Conformal prediction (CP) for regression can be challenging, especially when the output distribution is heteroscedastic, multimodal, or skewed. Some of the issues can be addressed by estimating a distribution over the output, but in reality, such approaches can be sensitive to estimation error and yield unstable intervals. Here, we circumvent the challenges by converting regression to a classification problem and then use CP for classification to obtain CP sets for regression. To preserve the ordering of the continuous-output space, we design a new loss function and present necessary modifications to the CP classification techniques. Empirical results on many benchmarks show that this simple approach gives surprisingly good results on many practical problems.

Live content is unavailable. Log in and register to view live content