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  Journal of Data Science Applications.

  Vol. 1 No. 1 (2025)

  This issue of Jurnal Aplikasi Sains Data (JASID) features research on diverse applications of data science methodologies. The first article compares ARIMA and SARIMA models for forecasting non-oil and gas exports in East Java. Next, a content-based filtering approach is applied to a tourist destination recommendation system in Central Java. Another study evaluates the performance of stochastic gradient descent and adaptive moment estimation optimizers in audio-based emotion classification using convolutional neural networks. Additionally, a fuzzy inference system has been developed for the quality assessment of formula milk in a stunting prevention program. Lastly, the clustering of diabetes risk factors is performed using the K-Prototypes Clustermix algorithm. Collectively, these studies demonstrate the relevance of data science techniques in economic forecasting, healthcare, machine learning, and recommendation systems.