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Prediksi Harga Rumah Berbasis Machine Learning dengan Explainable AI untuk Interpretabilitas Faktor Penentu Hadijah; Wiwin Handoko; Rizty Maulida Badri
Management of Information System Journal Vol 4 No 3: Juli 2026
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/mis.v4i3.2860

Abstract

House prices are determined by numerous interrelated factors, making it essential to develop prediction methods that are not only accurate but also interpretable by property business practitioners, investors, and policymakers. This study aims to construct a house price prediction model using a machine learning approach integrated with Explainable Artificial Intelligence (XAI) to produce predictions that are more transparent and comprehensibly interpretable. The data used in this study were derived from real property listings, incorporating several key variables including building area, land area, number of bedrooms, number of bathrooms, and garage capacity. Four machine learning algorithms were evaluated and compared, namely Linear Regression, Random Forest, XGBoost, and Gradient Boosting. The performance of each model was assessed using multiple evaluation metrics, comprising Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), coefficient of determination (R²), and Mean Absolute Percentage Error (MAPE). Experimental results demonstrate that the Random Forest algorithm achieved the best performance, yielding an R² value of 0.7636, MAE of IDR 1.305 billion, RMSE of IDR 2.037 billion, and MAPE of 25.84%. The best-performing model was subsequently analyzed using SHapley Additive exPlanations (SHAP) to provide both global and local model interpretability, as well as Local Interpretable Model-agnostic Explanations (LIME) to explain individual predictions at the instance level. The analysis reveals that building area and land area are the most influential factors in determining house prices. The proposed approach demonstrates a measurable improvement in model transparency, rendering prediction outcomes more comprehensible and trustworthy for end users.
Evaluasi Penerimaan Petani terhadap SULTANI Agro Berbasis QR Code Nurul Maulida Surbakti; Muhammad Ashari; Wiwin Handoko; Katrina Samosir; Dinda Kartika; Arnah Ritonga
Wahana Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 1 (2026): Edisi Juni
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/wahana.v5i1.1881

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan mengevaluasi penerimaan petani terhadap SULTANI Agro, yaitu media informasi cuaca dan agronomi berbasis QR Code yang terintegrasi dengan Automatic Weather Station (AWS). Kegiatan dilaksanakan pada Kelompok Tani Desa Mulya, Desa Petangguhan, Kecamatan Galang, Kabupaten Deli Serdang, dengan melibatkan 10 petani padi sebagai responden. Metode penerapan meliputi identifikasi kebutuhan, sosialisasi, demonstrasi alat AWS, pelatihan akses website melalui QR Code, pendampingan penggunaan, dan evaluasi menggunakan kuesioner skala Likert 1-4. Instrumen terdiri atas 12 butir yang mencakup kebutuhan informasi, kemudahan akses, serta manfaat dan minat penggunaan. Hasil evaluasi menunjukkan skor total 471 dari 480 atau 98,13% dengan kategori sangat baik. Aspek kebutuhan informasi memperoleh 98,13%, kemudahan akses 97,50%, serta manfaat dan minat penggunaan 98,75%. Temuan ini menunjukkan bahwa SULTANI Agro mudah diakses, relevan dengan kebutuhan petani, dan berpotensi memperkuat literasi digital pertanian berbasis data.