Sistem Rekomendasi Produk Skincare Berbasis Item Menggunakan Cosine Similarity dan Weighted Sum

Authors

DOI:

https://doi.org/10.53624/0fsqne50

Keywords:

Sistem Rekomendasi, Produk Skincare, Item-Based Collaborative Filtering, Cosine Similarity, Weighted Sum, Website

Abstract

Latar Belakang: Perkembangan industri skincare yang semakin pesat menyebabkan meningkatnya jumlah dan variasi produk perawatan kulit, sehingga pengguna mengalami kesulitan dalam menentukan produk yang sesuai dengan kebutuhan kulit. Tujuan: Penelitian ini bertujuan merancang dan mengimplementasikan sistem rekomendasi produk skincare berbasis website menggunakan metode Item-Based Collaborative Filtering (IBCF) dengan Cosine Similarity dan Weighted Sum. Metode: Dataset yang digunakan berasal dari Kaggle dan terdiri atas sekitar 8.000 data produk skincare. Karena dataset tidak menyediakan data interaksi pengguna secara langsung, penelitian ini membentuk data interaksi sintetis dari 50 pengguna dengan teknik random sampling dan rasio interaksi sebesar 30%. Data tersebut digunakan untuk membentuk matriks user-item sebagai dasar proses perhitungan rekomendasi. Evaluasi kinerja sistem dilakukan menggunakan Mean Absolute Error (MAE) dan Root Mean Squared Error (RMSE). Hasil: Hasil evaluasi menunjukkan nilai MAE sebesar 0,9792 dan RMSE sebesar 1,1522. Sistem mampu menghasilkan rekomendasi produk skincare berdasarkan tingkat kemiripan antarproduk menggunakan Cosine Similarity serta prediksi rating menggunakan Weighted Sum. Kesimpulan: Penerapan metode Item-Based Collaborative Filtering dengan Cosine Similarity dan Weighted Sum dapat menghasilkan rekomendasi produk skincare berdasarkan pola interaksi pengguna dan karakteristik kemiripan produk.

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Published

2026-11-14

How to Cite

[1]
“Sistem Rekomendasi Produk Skincare Berbasis Item Menggunakan Cosine Similarity dan Weighted Sum”, J. Sist. Inform. Tek. Inform. Komput., vol. 5, no. 2, pp. 164–179, Nov. 2026, doi: 10.53624/0fsqne50.

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