arXiv Machine Learning

Benchmarking uncertainty quantification for engineering regression under graded distribution shift

The paper introduces a graded distribution‑shift benchmark for evaluating uncertainty quantification (UQ) in engineering regression models. It defines a three‑rung shift ladder—distribution, soft, and hard shift—using physically meaningful variables and tests 12 UQ methods across seven public engineering datasets, including extrapolation, turbofan fault, and air‑quality scenarios. Results show conformal methods maintain high coverage under distribution shift, but coverage drops significantly under hard shift, with no clear method outperforming others, and weighted conformalised quantile regression often abstains from predictions.

arXiv Machine Learning
Aug 4

Conformalized Large Language Models under Configuration Shift

arXiv:2608. 01460v1 Announce Type: new Abstract: Conformal prediction (CP) is a distribution-free framework for uncertainty quantification that has recently been adapted to large language models (LLMs), providing prediction sets with finite-sample coverage guarantees under exchangeability.

By Yuqicheng Zhu, Jialin Yu, Lin Li, Gengyuan Zhang, Zhen Yang, Steffen Staab, Puneet Dokania, Philip Torr, Jie Tang, Evgeny Kharlamov
arXiv Machine Learning
Sep 23

Predictive Uncertainty for Neural CAE Surrogates

arXiv:2609.25430v1 Announce Type: new Abstract: Neural surrogates can substantially accelerate computer-aided engineering (CAE) workflows, but their use in design requires uncertainty estimates that...

By Kaustubh Tangsali, Mohammad Amin Nabian, Kelvin Lee, Carmelo Gonzales, Sanjay Choudhry
arXiv Machine Learning
Aug 18

Convolution Smoothed Quantile Regression for XGBoost

arXiv:2608. 15290v1 Announce Type: cross Abstract: The increasing availability of large and complex datasets across many scientific disciplines has led to widespread adoption of machine learning (ML) for prediction.

By Mandy Yao (University of Toronto), Meredith Franklin (University of Toronto)
arXiv AI
Oct 27

SHIFT-JEV: Certified Abstention and Gain-Gated Continual Adaptation for LLM-Based Decision Models under Distribution Shift

SHIFT-JEV is a procedure for large language model (LLM) decision systems that addresses domain, label‑prior, emerging‑class, and candidate‑set shifts. It combines risk scoring from uncertainty, format, and option‑consistency signals with certified abstention thresholds, drift and label‑shift monitoring, and a gain‑gated model‑update policy. Experiments on ten shifted test environments with Qwen3 and Phi‑4-mini show that fine‑tuning with KL anchors and temperature scaling reduces calibration error, while SHIFT‑JEV’s uncertainty‑based abstention and chi‑squared shift detection outperform baseline methods, achieving higher accuracy in continual adaptation scenarios.

By Muhammad Atif Saeed, Azka Atiq, Adarsh Kumar, Akhtar Jamil, Uzair Iqbal, Roland Aydin