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All Journal JOIN (Jurnal Online Informatika) The Indonesian Journal of Infectious Diseases Indonesia Natural Research Pharmaceutical Journal (INRPJ) Jurnal Farmasi Komunitas UNESA Journal of Chemical Education
Salsabila, Atikah
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Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Health Professions Immunology & microbiology Medicine & Pharmacology Public Health Other

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Journal : JOIN (Jurnal Online Informatika)

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Forecasting Shallot Prices in Indonesia Using News-Based Sentiment Indicators Salsabila, Atikah; Nooraeni, Rani
JOIN (Jurnal Online Informatika) Vol 10 No 1 (2025)
Publisher : Department of Informatics, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/join.v10i1.1422

Abstract

The volatile price changes of shallots are a challenge in controlling their prices. The fluctuation in the price of shallots is always reported in the media because it affects people's lives. The news is released online via the internet and has beneficial information so it can be utilized. This study aims to provide a comparative analysis of forecasting models for shallot prices in Indonesia, evaluating the impact of using the most effective sentiment indicators derived from four lexicon-based methods. Data were collected by scraping method on three news portals and one food price information source website during the period from 2020 to 2023. The correlation and causality analysis was conducted to determine the relationship between food prices and sentiment indicators that was obtained using four sentiment analysis methods. The selected sentiment indicators for each day were used as an additional variable in forecasting using ARIMA, SARIMA, and BSTS models. The results showed that the use of news sentiment could reduce RMSE, MAPE, and MAE in forecasting shallot food prices.  
Co-Authors -, Mufarrihah Alifa, Nadila Anggrianti, Yoisa Alsa Arifin, Miclle Asri, Lintang Azkiyah, Aidah Intan Budiastutik, Cica Maryuni Dwi Eradianto, Muhammad Rio Dwi Intansari, Ayunda Pitra Fauzan, Ki Agus Rifki Fikr, Militan Raushan Ghaliyah, Mahjatul Ikramullah, Nazwa Jasmine, Syifani Arihatu Lestari, Indri Muhammad Danial Nooraeni, Rani Qurotaayun, Diah Rahayu, Muga Wiji Rahman, Fakhrinnisa Wildani Rahmawati, Libna Rizqi Riyanti, Putri Saskia, Faizah Maulida Siti Rahma Sudarto Ronoatmodjo Sugiarti Sugiarti Syah, Bintang Shaifana Vanesa, Cherry Wea Bii, Maria Febriani Wulandari, Destiana Yanto, Ari