Michael Jeconiah Yonathan
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Perbandingan Metode K-Means dan Hierarchical Clustering pada Rekomendasi Musik Berbasis Audio Spotify Features Sistem Sinulingga, Samuel Mahesa; Farrel Reyhan Putra; Andhika Dwi Rachmawanto; Michael Jeconiah Yonathan; Valentino Wijaya; Vitri Tundjungsari
Informatics and Computer Engineering Journal Vol 6 No 1 (2026): Periode Februari 2026
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/icej.v6i1.11895

Abstract

Penelitian ini membandingkan metode K-Means dan Hierarchical Clustering dalam sistem rekomendasi musik berbasis audio features Spotify. Dataset yang digunakan berasal dari Spotify Tracks Dataset yang terdiri dari sekitar 114.000 lagu, kemudian melalui tahap pra-pemrosesan diperoleh sekitar 81.000 lagu valid. Untuk efisiensi komputasi, digunakan 5.000 lagu sebagai data eksperimen. Clustering dilakukan menggunakan 6 cluster dengan sembilan atribut audio. Evaluasi menggunakan Silhouette Score dan Davies–Bouldin Index menunjukkan bahwa K-Means memperoleh nilai Silhouette Score 0,1900 dan Davies–Bouldin Index 1,4445, sedangkan Hierarchical Clustering memperoleh nilai Silhouette Score 0,1782 dan Davies–Bouldin Index 1,4522. Hasil ini menunjukkan bahwa K-Means menghasilkan cluster yang lebih kompak. Sistem rekomendasi yang dibangun mampu memberikan rekomendasi lagu yang relevan berdasarkan kemiripan karakteristik audio.
Optimalisasi Summarization Berita BBC dengan Metode BiLSTM-Transformer Rafael Austin; Andhika Dwi Rachmawanto; Michael Jeconiah Yonathan; M Naufal Arriz; Vitri Tundjungsari
Jurnal Informatika Dan Tekonologi Komputer (JITEK) Vol. 6 No. 1 (2026): Maret : Jurnal Informatika dan Tekonologi Komputer
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jitek.v6i1.10669

Abstract

The rapid growth of digital news, such as that from the BBC, presents challenges for readers in absorbing dense information within limited time. This research proposes an automated text summarization system using a hybrid BiLSTM Transformer architecture to produce concise yet contextually accurate summaries. The model integrates BiLSTM to capture local sequential relationships and Transformer’s self-attention mechanism to handle global context, overcoming the computational limitations of standalone Transformers. Utilizing a self-embedding approach, the system processes text in an unsupervised manner, making it suitable for datasets without ground truth summaries. Evaluation was conducted using 50 samples from the Xsum dataset and 25 live BBC news links, with performance measured via cosine similarity to assess contextual preservation. The results demonstrated a consistent average cosine similarity of 0.7959 for dataset samples and 0.7877 for new data. These findings indicate that the hybrid model effectively maintains semantic integrity and provides reliable summaries for complex news articles.