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# Monte Carlo Dropout

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  1. arXiv

    Desertification forecasts hold for the regional trend, not for individual 2.2 km cells: a 24-year Ceará record puts a number on the ceiling

    Over Brazil's semi-arid Ceará state, a study using ten Earth Observation variables from 2000 to 2023 measured how much desertification is actually predictable: the state-wide mean degradation index rose about 0.005 per year, yet most year-to-year change at 2.2 km is not explained by these satellite data, and a gradient-boosting model given every channel explained only 4.7% of its variance. A residual ConvLSTM that predicts only the change from the last observed state lowered RMSE against persistence by 1.6% one year ahead and 4.4% four years ahead on a held-out southern band, reproducing 53–69% of the regional drift. The forecast is reliable for the regional trend, not for individual cells.

  2. arXiv

    CoNN-AL reaches R² 0.967–0.982 in automotive glass run channel design using about 2.3% of labels via stream-based active learning

    The study proposes CoNN-AL, which adds stream-based active learning to the Cooperative Neural Network with Denoising Autoencoder (CoNN-DAE) and uses Monte Carlo dropout uncertainty to decide in real time which incoming candidates are worth labeling for data-efficient partial inverse design; on a real-world automotive glass run channel dataset of more than 900,000 unique simulated designs, only 20,000 actively selected labels (about 2.3% of the training pool) yield R-squared of 0.967 to 0.982 across all missing-variable levels, approaching upper-bound models trained on far more data, and at harder levels it reaches R-squared of at least 0.95 with 30 to 40% fewer labels than random sampling.

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