arXiv Statistics ML

Statistical Inference for Score Decompositions

arXiv Machine Learning
4d ago

Introducing the CZAR Loss: A Tailored Objective Function for Financial Log-Return Predictions

arXiv:2609.36061v1 Announce Type: new Abstract: In quantitative finance, standard regression losses are misaligned with the economics of return prediction. As the conditional mean of financial log-re...

By Joel Pfeffer (Allora Foundation), J. M. Diederik Kruijssen (Allora Foundation), Florian Stecker (Allora Foundation), Steven N. Longmore (Allora Foundation, LJMU)
arXiv AI
Aug 17

Forecast Collapse in Time-Series Foundation Models

arXiv:2608. 14106v1 Announce Type: cross Abstract: When forecasting hourly returns for 1,000 US equities, we observe an unexpected phenomenon: predictions become nearly flat and show poor stock ranking, as measured by cross-sectional correlation.

By Shu Wan, Miles Ma, Hank Zhu, Guangqi Liu, Stephen Wang, Qingsong Wen, Huan Liu
Hugging Face Trending Papers
Jun 4

Proper Scoring Rules for Right-Censored Survival Data

Proper scoring rules provide a rigorous theoretical basis for the training and evaluation of probabilistic forecasts. However, in the presence of right censoring, the event time is only partially observed, rendering conventional scoring rules inapplicable in their standard form.