Product units in gated recurrent units improve nuclear-mass prediction

In three linesResearchers propose AM-PU-GRU, a GRU variant integrating multiplicative interactions and product-unit transformations in complex domain for nuclear-mass prediction. On AME2016/2020: interpolation RMSE 0.227±0.004 MeV, extrapolation RMSE 0.179±0.015 MeV. Outperforms existing ML models and real-valued GRU baselines.

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