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Classification of Chocolate Consumption Using Support Vector Machine Algorithm Aziz, Firman; Jeffry, Jeffry; Ayu Asrhi, Nur; La Wungo, Supriyadi
Journal of System and Computer Engineering Vol 6 No 2 (2025): JSCE: April 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i2.1860

Abstract

Chocolate, derived from the processing of cocoa beans (Theobroma cacao), is a widely consumed product with potential health risks when consumed excessively. This study investigates the classification of chocolate consumption behaviors using the Support Vector Machine (SVM) algorithm and evaluates its classification performance. A benchmark dataset on chocolate consumption was employed, partitioned into nine folds for training and testing purposes. To mitigate issues related to data imbalance, the Synthetic Minority Over-sampling Technique (SMOTE) was applied. The experimental findings indicate that SVM, enhanced by SMOTE, demonstrates a reliable capacity for classifying chocolate consumption categories. Performance evaluation across multiple experiments revealed variations in Accuracy, Precision, Recall, and F1-Score, with overall accuracies ranging from 50% to 60%, suggesting moderate but consistent classification performance.
Performance Exploration of Tree-Based Ensemble Classifiers for Liver Cirrhosis: Integrating Boosting, Bagging, and RUS Techniques Aziz, Firman; Jeffry, Jeffry; Wungo, Supriyadi La; Rijal, Muhammad; Usman, Syahrul
Journal of System and Computer Engineering Vol 6 No 3 (2025): JSCE: July 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i3.2031

Abstract

Liver cirrhosis, as a significant chronic liver disease, exhibits a rising global prevalence, demanding more effective preventive approaches. In an effort to enhance early detection and patient management, this research proposes the development of a liver cirrhosis risk prediction model using machine learning technology, specifically comparing the performance of three ensemble tree models: Ensemble Boosted Tree, Ensemble Bagged Tree, and Ensemble RUSBoosted Tree. Utilizing clinical and laboratory data from adults with a history or risk of cirrhosis, the study reveals that Ensemble Bagged Tree achieved the highest accuracy at 71%, followed by Ensemble Boosted Tree (67.2%) and Ensemble RUSBoosted Tree (66%). Analysis of clinical and laboratory variables provides further insights into the most significant contributors to risk prediction. The findings lay the groundwork for the advancement of a more sophisticated liver cirrhosis risk prediction tool, supporting a vision of more personalized and effective preventive strategies in liver disease management
Improved Human Activity Recognition Using Stacked Sparse Autoencoder (SSAE) Algorithm Aziz, Firman; Mustamin, Nurul Fathanah; Rijal, Muhammad; Tanniewa, Adam M
JOIV : International Journal on Informatics Visualization Vol 9, No 4 (2025)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.9.4.3079

Abstract

This study aims to enhance the performance of Human Activity Recognition (HAR) systems by implementing the Stacked Sparse Autoencoder (SSAE) algorithm combined with Support Vector Machine (SVM). The objective is to enhance the classification accuracy of human activities using sensor data. The materials for this study include a dataset collected from wearable devices equipped with accelerometers and gyroscopes. These devices generate time-series data representing a range of activities, such as walking, running, sitting, and standing. The raw data were preprocessed through normalization and segmented into fixed time windows to ensure uniformity and reliability for analysis. The methods utilized involve employing SSAE for automated feature extraction. The SSAE algorithm extracts hierarchical and abstract features from sensor data, enabling the model to learn complex patterns that traditional methods might overlook. The extracted features are then input into the SVM classifier to perform activity classification. SSAE was trained using unsupervised learning techniques, followed by supervised fine-tuning with labeled datasets. The results demonstrate that the SSAE-SVM model achieves superior performance compared to traditional SVM. The SSAE-SVM achieved 89% accuracy, 87% precision, 89% sensitivity, and 88% F1 score, significantly outperforming the traditional SVM’s 37% accuracy, 75% precision, 37% sensitivity, and 36% F1 score. These findings underscore the potential of SSAE in enhancing HAR systems by effectively extracting features from sensor data. Future research should focus on the real-time implementation of SSAE, leveraging diverse sensor modalities, and exploring its applicability in broader fields, such as predictive maintenance and personalized health monitoring.
Analisis Kebiasaan Konsumsi Nasi Mahasiswa Teknologi Pangan Universitas Pendidikan Indonesia di Tengah Dilema Impor Beras Annisa Sakanti Tamir; Firman Aziz; Ryan Ferdiana; Areta Nararya Putri Setiadi; Zhafira Tsania Rasyiffah; Shavi Khalwa Khalisha; Fiina Lanahdiyan Najah; Rahmania Nur Saputra
Sci-tech Journal Vol. 4 No. 2 (2025): Sci-Tech Journal
Publisher : MES Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/stj.v4i3.755

Abstract

This study examines rice consumption patterns among UPI Food Technology Students and the effectiveness of food diversification as a solution to rice dependence and increasing imports. The method used is descriptive with a qualitative approach through observation and interviews with a total of 5 respondents to understand consumption habits and openness to alternative carbohydrate sources. The results show that the majority of students still rely on rice as a staple food, while diversification efforts have not been effective due to taste preferences, limited access, and lack of socialization. However, there is potential for Food Technology students to develop local rice and try food alternatives in the future. The novelty of this research lies in the irony between student preferences and the availability of alternative carbohydrate sources. These findings can serve as a basis for more sustainable food education and development policies.
A Deep Learning Approach to Respiratory Disease Classification Using Lung Sound Visualization for Telemedicine Applications Wahyudi, Andi Enal; Batau, Radus; Aziz, Firman; Jeffry, Jeffry
Journal of System and Computer Engineering Vol 6 No 4 (2025): JSCE: October 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i4.2144

Abstract

This study presents the development of an intelligent system for the classification of respiratory diseases using lung sound visualizations and deep learning. A hybrid Convolutional Neural Network and Bidirectional Long Short-Term Memory (CNN–BiLSTM) model was designed to classify four conditions: asthma, bronchitis, tuberculosis, and normal (healthy). Lung sound recordings were converted into time-frequency representations (e.g., mel-spectrograms), enabling spatial-temporal feature extraction. The system achieved an overall classification accuracy of 99.5%, with F1-scores above 0.93 for all classes. The confusion matrix revealed minimal misclassifications, primarily between asthma and bronchitis. These results suggest that the proposed model can effectively support real-time, non-invasive respiratory screening, particularly in telemedicine environments. Future work includes clinical validation, integration of patient metadata, and adoption of transformer-based models to further enhance diagnostic performance.
Enhancing Human Activity Recognition with Attention-Based Stacked Sparse Autoencoders Batau, Radus; Sari, Sri Kurniyan; Aziz, Firman; Jeffry, Jeffry
Journal of System and Computer Engineering Vol 6 No 4 (2025): JSCE: October 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i4.2148

Abstract

This study presents the development of an intelligent system for the classification of respiratory diseases using lung sound visualizations and deep learning. A hybrid Convolutional Neural Network and Bidirectional Long Short-Term Memory (CNN–BiLSTM) model was designed to classify four conditions: asthma, bronchitis, tuberculosis, and normal (healthy). Lung sound recordings were converted into time-frequency representations (e.g., mel-spectrograms), enabling spatial-temporal feature extraction. The system achieved an overall classification accuracy of 99.5%, with F1-scores above 0.93 for all classes. The confusion matrix revealed minimal misclassifications, primarily between asthma and bronchitis. These results suggest that the proposed model can effectively support real-time, non-invasive respiratory screening, particularly in telemedicine environments. Future work includes clinical validation, integration of patient metadata, and adoption of transformer-based models to further enhance diagnostic performance.
Sistem Manajemen Penjadwalan Pengajaran Dosen berbasis SMS Gateway jeffry, jeffry; Velayaty, Ali Akbar; Aziz, Firman
Journal of System and Computer Engineering Vol 4 No 2 (2023): JSCE: Juli 2023
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v4i2.648

Abstract

To improve performance in teaching time, one of which is by being punctual in teaching, therefore a system is needed to remind lecturers when teaching time arrives. Along with the development of technology, almost everyone has a communication device called a cell phone, one of the functions that are often used is sending messages or SMS. SMS Gateway is a platform that can be used to send and receive SMS whose settings can be made using PHP with data storage tools in the form of MySQL. Reminder SMS and teaching schedule monitoring using the SMS Gateway is a system used to remind lecturers about class schedules via SMS that was developed using the PHP programming language.
Sistem Monitoring Status Meja Pada Restoran Berbasis Internet of Things (IOT) Mardewi, Mardewi; Iskandar, Imran; Sofyan, Sofyan; La Wungo, Supriyadi; Aziz, Firman
Journal of System and Computer Engineering Vol 4 No 2 (2023): JSCE: Juli 2023
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v4i2.816

Abstract

The condition of a busy restaurant sometimes makes it difficult for waiters to monitor and provide satisfactory service to customers. Customers must wave when they want to call waiters but feel ignored or not seen and will feel uncomfortable with the atmosphere and calm in the dining room. An Internet of Things (IOT) based desk status monitoring system is a concept that has the ability to transfer data over a network without the need for human-to-human interaction. This study proposes a table status monitoring system in IOT-based restaurants. This tool is made so that it can be applied to large rooms and crowded visitors. A device equipped with wireless communication to send data to the server, so that it can be monitored in real time. If the button on the tool is pressed, the system will send a signal to the relay to give a call sign warning to restaurant staff/waitresses. The results of this study indicate that status information from tables requesting service from waiters will respond to these service requests and help optimize service at restaurants so that they can satisfy their customers.
Kajian Persepsi Masyarakat Indonesia terhadap Obat Kimia dan Tradisional melalui Analisis Linguistik dan NLP dalam Konteks Farmasi Irmawati, Irmawati; Aziz, Firman; Delilah, Eva; Ishak, Pertiwi; Jafar, Jafar
Journal Pharmacy and Application of Computer Sciences Vol. 3 No. 1: Februari: 2025: JOPACS
Publisher : Arlisaka Madani Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59823/jopacs.v3i1.76

Abstract

Persepsi masyarakat terhadap obat kimia dan tradisional di Indonesia memiliki pengaruh signifikan terhadap pilihan pengobatan serta tingkat kepatuhan pasien dalam menjalani terapi. Kedua jenis obat ini, meskipun digunakan secara luas, kerap kali dipandang berbeda oleh masyarakat berdasarkan berbagai faktor seperti budaya, nilai-nilai kepercayaan, dan pengalaman personal dalam penggunaannya. Dalam konteks modern yang ditandai dengan berkembangnya teknologi digital, media sosial telah menjadi ruang publik yang penting bagi masyarakat untuk mengekspresikan opini, berbagi pengalaman, dan membentuk narasi kolektif tentang obat-obatan. Artikel ini bertujuan untuk menganalisis persepsi masyarakat Indonesia terhadap obat kimia dan obat tradisional melalui pendekatan interdisipliner yang menggabungkan analisis linguistik dan pemrosesan bahasa alami (Natural Language Processing/NLP). Data dikumpulkan dari platform media sosial seperti Twitter serta forum-forum kesehatan daring selama periode Januari hingga Maret 2024, menghasilkan lebih dari 50.000 unggahan dan komentar. Proses analisis mencakup pra-pemrosesan teks, analisis sentimen menggunakan model IndoBERT, topic modeling dengan BERTopic, dan analisis linguistik untuk menggali kedalaman makna bahasa yang digunakan masyarakat. Hasil penelitian menunjukkan bahwa obat tradisional lebih sering diasosiasikan dengan persepsi positif, terutama terkait sifatnya yang dianggap alami dan aman. Sebaliknya, obat kimia sering dipandang negatif, terutama karena isu efek samping dan ketergantungan. Temuan ini memberikan wawasan penting dalam menyusun strategi komunikasi kesehatan dan edukasi masyarakat yang lebih adaptif terhadap persepsi dan pola bahasa publik di Indonesia.
Analisis Pola Komunikasi dengan Chatgpt dalam Perspektif Psikologis pada Mahasiswa Universitas Pendidikan Indonesia Zahra Hasna Nabilla; Restu Arsyana; Hanum Nur Alifia; Misbah Abdul Aziz; Firman Aziz; Ryan Ferdiana
Jurnal Ilmiah Teknik Informatika dan Komunikasi Vol. 5 No. 2 (2025): Juli: Jurnal Ilmiah Teknik Informatika dan Komunikasi
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juitik.v5i2.1040

Abstract

In the digital era, students' interactions with technology have become increasingly widespread, including the use of artificial intelligence such as ChatGPT as a medium for both academic and personal communication. This study aims to analyze the communication patterns between students of Universitas Pendidikan Indonesia and ChatGPT, as well as its psychological impacts on users. This research employs a descriptive qualitative method, using in-depth interviews with three students from Universitas Pendidikan Indonesia and documentation in the form of conversation transcripts. The findings reveal that students utilize ChatGPT as a source of academic information, a discussion partner, and a tool for personal reflection. The communication patterns observed exhibit supportive, responsive, and affective styles. Psychologically, interacting with ChatGPT provides a sense of comfort, boosts self-confidence, and helps reduce academic anxiety. However, there is also a potential risk of dependency on the instant responses provided by artificial intelligence. This study recommends the development of digital communication literacy and the conscious use of technology to ensure that human–AI interactions remain psychologically healthy and productive.
Co-Authors Abasa, Sustrin Achmad Hufad Adriana, Andi Nur Ilmi Adriana, Andi Nurilmi Afifah, Mira Aulia Ahmad Sukarna Syahrir, Ahmad Sukarna Akbar Taufik Almuhajir Haris, Almuhajir Amalyah, Aam Amelia, Kiki Resqy Ampauleng Ampauleng Andi Nurilmi Adriana Andi Taufiqurrahman Akbar Andjani, Andita Dwi Andri Kurniawan Andyka Andyka, Andyka Anirwan Anirwan Annisa Sakanti Tamir Anugriaty Indah Asmarany Aqdami, Nashrullah Tsabbit Arafah, Muhammad Nur Areta Nararya Putri Setiadi Arifin, Syaadiah Armansyah, M Rezky Armin Lawi Arni, Sitti Artikasari, Devina Arvito, Djendral Muhammad Aulia, Khansa Ayu Asrhi, Nur Ayu, Rizkia Siva Aziz, Naufal Nuurul Aziz Azizah, Regita Nur Azminuddin I. S. Azis Barokah, Nurul Nur Batau, Radus Buang, Ariyani Buang, Misbahuddin Buyung Firmansyah Cahya, Nayla Riskia Delilah, Eva Dessy Putri Wahyuningtyas Dhilan Sasmita Enal Wahyudi, Abdi Fadhila Amri, Nur Faisal Rahman Fajriana, Fajriana Fani Temarwut, Farid Fatimah Azzahra NF Fatimah Malini Lubis Ferdiana, Ryan Fiina Lanahdiyan Najah Firdaus, Siti Laya Nurbaiti Firmansyah Firmansyah Firmansyah Firmansyah, Arya Pramudya Fuadi Syam, Rahmat Fujiono, Fujiono Gunawan, Resky Nuralisa H, Rezha Ilma Hadi Prayitno Hafsah, Hafni Hamdani Nur, Nur Hanayanti, Citra Siwi Hanum Nur Alifia Hasriani Hasriani, Hasriani Hayati, Ristia Nur Hechmi SHILI Hikam, Zaki Maula Hilyah, Finan Azka Nuzilla Indrayani, Lilis Intan, Dyah Noor Iriany, Rosary Irmawati Irmawati Ishak, Pertiwi Iskandar, Imran Ismail Ismail Istiqamah, Nurul Jafar Jafar Jafar Jafar Jeffry Jeffry Jeffry Kahar Gani Khairunnisa, Salwa Khurosani, Bilqhis Isywal Kurniyan Sari, Sri Kusumawardhani, Anggun L.E.P, Benny La Wungo, Supriyadi Lempi, Herga Andar Lutfi Budi Ilmawan, Lutfi Budi M Rezky Armansyah Mahdia, Naila Maulida Manan, Linda Ifni Pratiwi Marcelina, Dona Mardewi Mardewi Mardewi, Mardewi Marzuki Maulani, Rista Nabilah Meiliana, Annisa Merdewiningsi, Andi Mindra, Davin Septian Misbah Abdul Aziz Muhammad Arfah Asis Muhammad Lutfi Muhammad Rijal Muhammad Rijal Mutia Maulida Nasir, Norma Nasruddin Nasruddin Nur Ayu Asrhi Nur Ayu Asrhi Nur Hamadani Nur Nur Hamdani Nur Nur, Nur Hamdani Nurafni Shahnyb Nurafni Shahnyb Nurdyansa Nurul Fathanah Mustamin Nurul Istiqamah Osman, Isnawati Panggabean, Benny Leonard Enrico Paramitha, Aura Rahma Priambodo, Caka Gatot Putra, Sudarmadi Putranto, Samuel Aditya Eko Putri Ayu Lestari Putrinima, Ayudia Qoryn Qamal Qamal Rahma, Nabila Nailatur Rahma, Widya Rahmania Nur Saputra Reinata, Vanya Fara Restu Arsyana Rijal, Muhammad Riyanti, Apriani Rizqya Aufa Nuraini Rofi’i, Agus Rohmah Nur Hidayah Ronald Yehezkiel Sitompul Rozak, Rama Wijaya Abdul Ryan Ferdiana Sari, Sri Kurniyan Satar Satar Sazeli, Aulya Sasikirana Sembiring, Darmawanta Shahnyb, Nurafni Shavi Khalwa Khalisha Simarmata, Victoria Clareva Siti Saidah Soeriakartalegawa, Aldo Pranata Sofyan Sofyan Sumardi . Sumardi Sumardi Suroso Suroso Syahrul Usman Syam, Rahmat Fuadi Syam, Rahmat Fuady Tanniewa, Adam M Taufik , Akbar Taufik, Akbar Tazkillah, Ghina Ajmal Tb, Mar Athul Wazithah Triani, Novita Trianita, Desi Umar, Hendra Velayaty, Ali Akbar Vismania S. Damaianti, Vismania S. Wahab, Andyka Wahyudi, Andi Enal Wiftasya, Najla Wijaya, Neti Septi Wisnu, Basuki Wulandari, Ayu Ratna Wungo, Supriyadi La Yahya, Kurnia Yance Manoppo Yarkuran, Nuru Zahra Hasna Nabilla Zahra, Agifa Faiza Zevi, Fidiya Iryana Zhafira Tsania Rasyiffah Zulkarnain Zulkarnain Zulkarnain Zulkarnain