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Author

Liam Hodgkinson

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#machine learning Preprint Sep 2026

Benign Loss Landscapes Can Coexist with Worst-Case Hardness

This work studies tree tensor networks (TTNs), a model class that generalizes deep linear networks and Tucker decompositions and shows they embed arbitrary read-once Boolean formulas, and thus contain polynomial-size targets that cannot be learned by gradient descent in polynomial time under the same mechanism as neura...

Zach Furman, Stephan Wäldchen, Yang-Da Bei et al. · 0 citations
Preprint Aug 2026

SCAN: Sequentially Detecting Change-points via Adaptive Nonparametric Inference

SCAN is introduced, an offline method for detecting multiple distributional change-points in long, serially dependent univariate time series and achieves higher covering and F1-scores than competing methods across mean and joint mean-variance shifts, particularly under serial dependence.

Ashoka Prabashwara, P. Menéndez, Liam Hodgkinson et al. · 0 citations

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