Shindi Shella May Wara
Universitas Pembangunan Nasional “Veteran” Jawa Timur

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Analisis Sentimen Ulasan Aplikasi Maxim Merchant dengan Support Vector Machine (SVM) dan Random Forest Selly Rizkiyah; Indira Zein Rizqin; Milla Akbarany Baktiar Putri; Shindi Shella May Wara; Kartika Maulida Hindrayani
JDMIS: Journal of Data Mining and Information Systems Vol. 4 No. 1 (2026): February 2026
Publisher : Yayasan Pendidikan Penelitian Pengabdian Algero

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54259/jdmis.v4i1.4765

Abstract

The development of digital technology, especially mobile devices, has led to an increase in application-based services. One important aspect in app development is to deeply understand user perception and satisfaction. This study aims to analyze user sentiment towards the Maxim Merchant application based on reviews obtained from the Google Play Store platform. A total of more than 2800 Indonesian-language reviews were collected using web scraping techniques. The review data was processed through pre-processing stages such as text cleaning, normalization, tokenization, removal of unimportant words, and stemming. Sentiments are categorized into positive and negative based on the review score, where scores of 1 to 3 are considered negative, and scores of 4 and 5 are considered positive. Word cloud visualization is used to show the dominant words of each sentiment category. The data is then converted into numerical form using TF-IDF and selected using the Chi-Square method. Classification was performed using Support Vector Machine and Random Forest algorithms. The evaluation results show that the Support Vector Machine algorithm performs better in classifying sentiment, especially in handling high-dimensional text data.
SEGMENTASI PROFIL KESEHATAN PROVINSI DI INDONESIA MENGGUNAKAN ANALISIS FAKTOR DAN K-MEANS CLUSTERING: CLUSTERING INDONESIAN PROVINCES BASED ON HEALTH INDICATORS USING FACTOR ANALYSIS AND K-MEANS Galih Zaky Tristanaya; Febriani Yolanda Tessalonika; Muhammad Rafy Danadyaksa; Shindi Shella May Wara; Amri Muhaimin
HOAQ (High Education of Organization Archive Quality) : Jurnal Teknologi Informasi Vol. 17 No. 2 (2026): Jurnal HOAQ - Teknologi Informasi
Publisher : Universitas Uyelindo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52972/hoaq.vol17no2.p362-372

Abstract

Indonesia sebagai negara kepulauan dengan 38 provinsi menyimpan berbagai ketimpangan kondisi kesehatan yang kompleks. Tujuan dari penelitian ini yaitu untuk mengidentifikasi pola kategorisasi provinsi di Indonesia menurut parameter kesehatan melalui pendekatan analisis faktor dan klasterisasi K-Means. Riset ini menggunakan dataset yang memuat 12 variabel kesehatan provinsi Indonesia. Kelayakan data dan variabel diverifikasi dengan uji Kaiser-Meyer-Olkin (KMO) dan Bartlett's Test. Kemudian diekstrak ke faktor-faktor yang menghasilkan 3 faktor. Faktor yang dihasilkan selanjutnya digunakan sebagai input klasterisasi K-Means, dengan jumlah klaster optimal ditentukan melalui Elbow Method, Davies-Bouldin Index, dan Calinski-Harabasz Index, serta divalidasi menggunakan Silhouette Score. Hasil penelitian mengangkat empat klaster yang divalidasi dengan Silhouette Score sebesar 0,4563. Klaster yang dihasilkan mengungkapkan segmentasi wilayah yang kontras secara detail, di mana klaster 0 yang mencerminkan wilayah berprofil rata-rata atau menengah nasional, klaster 1 yang mencerminkan outlier tunggal dengan tingkat kerentanan tertinggi dan kritis,  klaster 2 yang mencerminkan pusat demografi dengan kapasitas infrastruktur medis berskala masif, dan klaster 3 yang mencerminkan wilayah terluar yang rentan dan jauh. Analisis ini menegaskan bahwa pendekatan analisis faktor dan klasterisasi K-Means mampu menghasilkan pola-pola dalam kesehatan nasional, sehingga pemerintah mampu mempertimbangkan profil tiap klaster secara spesifik demi intervensi yang efektif dan berkeadilan.   As an archipelagic nation with 38 provinces, Indonesia faces a range of complex health disparities. The purpose of this study is to identify characteristics of provincial categorization in Indonesia according to health parameters using factor analysis and K-Means clustering. This study uses a dataset containing 16 health variables for Indonesian provinces. The eligibility of the data and variables was verified using the Kaiser-Meyer-Olkin (KMO) test and Bartlett’s test. The data was then extracted into factors, yielding three factors. These factors were then used as input for K-Means clustering, with the optimal number of clusters determined using the Elbow Method, the Davies-Bouldin Index, and the Calinski-Harabasz Index, and validated using Silhouette Score. The result identified four clusters, validated by a Silhouette Score of 0.4563. The resulting clusters reveal a detailed segmentation of regions with contrasting characteristics: Cluster 0 represents regions with an average or national-level profile; Cluster 1 represents a single outlier with the highest and most critical vulnerability level; Cluster 2 represents a demographic center with massive medical infrastructure capacity; and Cluster 3 represents vulnerable and remote outlying regions. This analysis confirms that factor analysis and K-means clustering can identify patterns in national health, enabling the government to consider the specific profile of each cluster in order to implement effective and equitable interventions.