Data-Efficient LSTM Modeling for Climate-based Dengue Early Warning in Lampung, Indonesia
DOI:
https://doi.org/10.30829/zero.v9i2.26192Keywords:
Dengue fever, Lampung Province, climate factors, Long Short-Term Memory (LSTM), genetic algorithm, predictive modeling, early warning systemAbstract
We present a data-efficient recurrent framework for climate-informed dengue early warning in Lampung Province. Monthly incidence and climate records are transformed into supervised sequences with 2-3-month lags, consistent with the observed lead-lag structure. Three architectures i.e. single-layer LSTM, stacked LSTM, and Temporal-Attention LSTM (TA-LSTM) are tuned via a compact genetic search under a time-ordered split. Performance improves with longer history; the TA-LSTM (37 units) attains the best accuracy. Permutation feature importance reveals a clear hierarchy: relative humidity and maximum temperature dominate, autoregressive incidence contributes moderately, while rainfall, sunshine, and minimum temperature are secondary; average temperature is largely redundant. The findings indicate that adding meaningful historical context and selective temporal weighting yields robust early-warning capability from coarse, time-limited data, and that humidity-temperature dynamics, together with short-term incidence persistence, are the principal drivers in this provincial setting.References
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