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Journal : Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika

SPAM EMAIL CLASSIFICATION USING SUPPORT VECTOR MACHINE (SVM) AND TF-IDF: A CASE STUDY WITH THE TREC 2007 AND ENRON-SPAM DATASETS Paramartha, I Gusti Ngurah Darma; Sudestra, I Made Ardi; Gama, Adie Wahyudi Oktavia; Prathama, Gede Humaswara
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 19 No. 2 (2025): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v19i2.22770

Abstract

Spam emails represent a substantial concern within the digital landscape, impeding users with unsolicited communications. This study elucidates the utilization of a Support Vector Machine (SVM) coupled with a TF-IDF Vectorizer for categorizing emails into spam and non-spam classifications. The model was developed utilizing two publicly accessible pre-processed datasets: the TREC 2007 Public Spam Corpus and the Enron-Spam Dataset. By employing the TF-IDF algorithm, which allocates heightened importance to infrequent yet pertinent terms, alongside SVM, renowned for its efficacy in textual classification, the model exhibits remarkable efficacy, achieving an accuracy of 99.04%, a precision of 98.57% and a recall of 99.62%. These findings underscore the model's formidable capacity to discern spam emails while concurrently minimizing false positives accurately. This is critical for real-world applications where authentic emails must not be erroneously categorized as spam. Furthermore, this study elaborates on the justification for the selection of TF-IDF and SVM in the context of spam email classification, in addition to the evaluation outcomes of the model, which align with existing literature, wherein the integration of SVM with TF-IDF has demonstrated substantial performance in spam detection endeavours.
IMPLEMENTASI DATA MINING DALAM MENENTUKAN TATA LETAK PRODUK MENGGUNAKAN ALGORITMA FP-GROWTH Prathama, Gede Humaswara; Devi Anggreni, Ni Komang Ayu; Oktavia Gama, Adie Wahyudi; Darma Paramartha, I Gusti Ngurah
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 19 No. 2 (2025): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v19i2.22855

Abstract

This study analyzes purchasing patterns in minimarkets using the FP-Growth algorithm to optimize product layouts. One year of sales transaction data (103,181 transactions) from UNDIKNAS Mart were analyzed through data cleaning, transformation, and aggregation. The FP-Growth algorithm was applied with minimum support 5%, confidence 80%, and lift >1 thresholds. Results identified strong product associations, particularly between "Aqua 600 ml (Tanggung)" and various snacks, with confidence values of 81-93% and lift >5. Implementing these findings in product arrangement increased sales by 15-20% despite store accessibility limitations. Cross-validation using a decision tree model showed 81.67% accuracy. The findings demonstrate FP-Growth's effectiveness in small-scale transaction data analysis. The research provides practical contributions for retailers to boost sales through data-driven product layout optimization. A limitation is the single-location data scope, suggesting the need for broader subsequent studies. This study offers a data-based approach adoptable by small and medium retail businesses to enhance operational efficiency and profits. The research confirms that data mining techniques can significantly impact retail performance even in constrained environments, providing empirical evidence of FP-Growth's practical utility in real-world minimarket settings. The methodology and findings contribute to the growing literature on data mining applications in small-scale retail operations, offering replicable frameworks for similar business contexts.
Co-Authors A.A. Gde Adi Indrawan, A.A. Gde Adie Wahyudi Oktavia Gama Agus Ariana, I Komang Anak Agung Gede Sugianthara Anak Agung Istri Agung Maheswari Anak Agung Sagung Mas Anastassia Nawang Asri Angelyn Gavryla Anggit Septio Budi Ardiana Reswari, Ni Putu Puja Ariesta, Ni Luh Wina Sinta Ayu Fiqih Wulandari Ayu Satya Kartika Dananjaya, Md. Wira Putra Dandy Pramana Hostiadi Dedy Panji Agustino, Dedy Panji Devi Anggreni, Ni Komang Ayu Gde Brahupadhya Subiksa Gede Angga Rista, Gede Angga Gede Humaswara Prathama Gede Ngurah Indra Arya Aditya Grren, Agustini Degni Melsy Gusi Putu Lestara Permana Hesty Pahlevy Setyo Rini Hiu, Victor I Gede Harsemadi I Gusti Ayu Cintya Wardani I Gusti Ayu Dewi Suardi, I Gusti Ayu Dewi I Gusti Ayu Intan Candra Dewi I Gusti Ayu Rosy Agustini, I Gusti Ayu I Gusti Rai Agung Sugiartha I Kadek Arta Wiguna I Ketut Sedana Artha, I Ketut Sedana I Ketut Suada I Made Hendriek Prasetia I Made Sindhu Yoga I MADE SUDIKSA, I MADE I Nym. Yudi Anggara Wijaya, I Nym. Yudi I Nyoman Hary Kurniawan I Putu Adi Wijaya, I Putu I Putu Indra Agastya Lupika Jaya, I Putu Indra Agastya I Putu Widiantara, I Putu I Wayan Aditya Suranata I Wayan Dikse Pancane Ida Ayu Winda Juniari Ida Bagus Ketut Surya Arnawa, Ida Bagus Ketut Surya Indra Gunawan, Moh. Sayful Intan Adhisti, Sagung Istri Iskandar, Revival Xavier John Junieargo Timotius Kadek Adyatna Wedananta Kadek Adyatna Wedananta Kadek Darmaastawan Kadek Laras Oktiana Kumala Dewi Latupeirissa, Jonathan Jacob Paul M Febrian Eibim Adzariatulah Maharani, Ni Komang Natasya Mario Oktavianus, Mario Ngakan Nyoman Kutha Krisnawijaya Nyoman Ayu Nila Dewi Octavia Gama, Adie Wahyudi Oka Ariwangsa, I Gusti Ngurah Pande Kadek Yudiarta, Pande Kadek Permana, Putu Indra Putra, Komang Satria Wibawa Putu Gede Arya Sumertayasa Putu Purnama Dewi Putu Purnama Dewi Putu Riska Indah Mentari Ricky Aurelius Nutanto Diaz, Ricky Aurelius Santhi Mitha Tridorade Geot Satria Yogananda Sofyan, Yohanes Samuel Sudestra, I Made Ardi Suputra, Komang Yudi Teguh Hari Martha, Teguh Hari Widnyani, Ni Made Wirawan, Made Surya Yohanes Priyo Atmojo Yohanes Priyo Atmojo, Yohanes Priyo