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Choirunnisa, Nabila
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Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Mathematics Nursing Physics Public Health

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Prediksi Harga Beras di Provinsi Nusa Tenggara Barat Dengan Metode Least Square Approximation Anjani, Aulia Fadma; Choirunnisa, Nabila; Haizar, Maulana Rifky; Robbaniyyah, Nuzla Af’idatur; Rusadi, Tri Maryono
JSN : Jurnal Sains Natural Vol. 3 No. 1 (2025): Februari
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/jsn.v3i1.690

Abstract

The Linear Least Square Approximation method is applied to predict rice prices in West Nusa Tenggara (NTB) Province. The price of rice plays a strategic role in the Indonesian economy as it is the basic need of most people, and its fluctuations have a significant impact on purchasing power and economic stability. Various factors influence changes in rice prices, such as production volume, climate conditions, and the possibility of price manipulation by certain parties. In this analysis, the Least Square Approximation method was chosen because it is able to capture trend patterns based on historical data from 2015-2022 obtained from the Central Statistics Agency (BPS), thus helping to project future prices. The prediction results show that rice prices in the period tend to be stable in the range of IDR 8,900 to IDR 9,800 per kilogram. The accuracy of the model was evaluated using Mean Absolute Percentage Error (MAPE), which resulted in an error of 2.59%, indicating that the method is effective and reliable enough to provide accurate rice price predictions.
STRATEGI MANAJEMEN RISIKO OPERASIONAL DALAM BISNIS E-COMMERCE UNTUK MENGHADAPI TANTANGAN DAN MENEMUKAN SOLUSI Sulpawati; Choirunnisa, Nabila; Rohman, Hilma Fanniar
Jurnal Manajemen dan Pemasaran Vol. 4 No. 1 (2025): Edisi Agustus 2025
Publisher : Universitas Haji Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51771/jumper.v4i1.1729

Abstract

The rapid development of e-commerce in the digital era presents both opportunities and operational challenges, such as technological disruptions, logistical risks, regulatory uncertainty, cybersecurity threats, and changes in consumer behavior. This study aims to formulate an effective operational risk management strategy by providing solutions using a qualitative approach through literature studies. The findings indicate that implementing comprehensive and adaptive risk management strategies is essential for ensuring the continuity of e-commerce businesses. The analyzed strategies—based on ISO 31000, the Value Chain approach, and the Theory of Constraints (TOC)—have proven effective in improving efficiency, data security, and customer trust. Cross-sector collaboration and clear regulatory frameworks are necessary to support the sustainability of e-commerce in Indonesia.
Co-Authors Anjani, Aulia Fadma Haizar, Maulana Rifky Robbaniyyah, Nuzla Af’idatur Rohman, Hilma Fanniar Sulpawati Tri Maryono Rusadi