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arXiv · 2507.12611

Astro-MoE: Mixture of Experts for Multiband Astronomical Time Series

Martina Cádiz-Leyton·Guillermo Cabrera-Vives·Pavlos Protopapas·Daniel Moreno-Cartagena·Ignacio Becker
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Abstract

Multiband astronomical time series exhibit heterogeneous variability patterns, sampling cadences, and signal characteristics across bands. Standard transformers apply shared parameters to all bands, potentially limiting their ability to model this rich structure. In this work, we introduce Astro-MoE, a foundational transformer architecture that enables dynamic processing via a Mixture of Experts module. We validate our model on both simulated (ELAsTiCC-1) and real-world datasets (Pan-STARRS1).

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Martina Cádiz-Leyton, Guillermo Cabrera-Vives, Pavlos Protopapas, Daniel Moreno-Cartagena, Ignacio Becker. 2025-07-16. Astro-MoE: Mixture of Experts for Multiband Astronomical Time Series. https://arxiv.org/abs/2507.12611

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