mlsanityData to 7 Oct 2026

HyperTime: Hyperparameter Optimization for Combating Temporal Distribution Shifts

arXiv 2305.18421 ↗First posted 28 May 2023cs.LG cs.AIcited by 8

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Abstract (arXiv)

In this work, we propose a hyperparameter optimization method named HyperTime to find hyperparameters robust to potential temporal distribution shifts in the unseen test data. Our work is motivated by an important observation that it is, in many cases, possible to achieve temporally robust predictive performance via hyperparameter optimization. Based on this observation, we leverage the `worst-case-oriented' philosophy from the robust optimization literature to help find such robust hyperparameter configurations. HyperTime imposes a lexicographic priority order on average validation loss and worst-case validation loss over chronological validation sets. We perform a theoretical analysis on the upper bound of the expected test loss, which reveals the unique advantages of our approach. We also demonstrate the strong empirical performance of the proposed method on multiple machine learning tasks with temporal distribution shifts.

Key facts. Cited by 8 papers in the map (data through 7 Oct 2026). Builds on 37 of its 75 references that are in the map. First posted on arXiv 28 May 2023.

Builds on

37 of 75 references.

References · 37

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25 more
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Cited by year (2026 to 7 Oct)

Citing papers per year: 2023: 4; 2024: 3; 2025: 0; 2026: 1.

8 papers.