arXiv Machine Learning

Anticipating the Optimism Gap: Predicting Distribution-Shift Degradation of RF-Impairment Detectors from In-Distribution Statistics

arXiv:2606. 22054v2 Announce Type: replace-cross Abstract: Detectors for GNSS radio-frequency impairments (jamming, spoofing, multipath) are usually reported with a single AUC measured on the distribution they were tuned on.

arXiv Machine Learning
Jul 9

Prior-matched evaluation of operational Earth-observation classifiers: a three-number reporting method demonstrated on Sentinel-1 internal-wave detection

arXiv:2607. 07146v1 Announce Type: new Abstract: The Internal Waves Service screens the Sentinel-1 Wave-mode archive for internal solitary waves, routing detections to experts whose adjudication time is the resource the effort exists to conserve.

By Joao Pinelo, Joao Goncalves, Arun Shukla, Adriana Santos-Ferreira
arXiv Machine Learning
Aug 4

Real-Time Detection and Repair of LLM Agent Failures

arXiv:2608. 02464v1 Announce Type: cross Abstract: LLM agents fail mid-episode -- they loop, cascade tool errors, drift off goal, fabricate results, or silently absorb corrupted content -- and the standard remedy, judging every step with a second LLM, costs more than the agent itself.

By Sunny Dubey
arXiv Machine Learning
Aug 20

When Does Dynamic Ensembling Pay Off? Diagnosing Regionwise Gains in Regression under Distribution Shift

The paper introduces “ℝD_{CF5}”, a probe‑based estimator that predicts the region‑wise gain of a dynamic ensemble over the best static blend in regression tasks under distribution shift. Across 12 benchmark dataset‑shift pairs, the estimator achieves a Spearman correlation of +0.98 with actual test gains, outperforming alternative diagnostics. The authors also present a Probe‑Validated Ensemble Selector that chooses between a static affine stacker and dynamic realizers, demonstrating risk reductions of up to 16% in prospective deployments.

By Tianxin Zhou, Ruixi Lin