| 2026 | ICCS | Lightweight Grey Wolf Optimization-Driven Hyperparameter Tuning of U-Net for Robust Brain Tumor Segmentation. | Shoffan Saifullah, Rafal Drezewski, Anton Yudhana |
| 2025 | GECCO | Particle Swarm-Optimized U-Net Framework for Precise Multimodal Brain Tumor Segmentation. | Shoffan Saifullah, Rafal Drezewski |
| 2025 | ICCS | Optimizing U-Net Architecture Using Differential Evolution for Brain Tumor Segmentation. | Shoffan Saifullah, Rafal Drezewski |
| 2024 | GECCO | Improved Brain Tumor Segmentation Using Modified U-Net based on Particle Swarm Optimization Image Enhancement. | Shoffan Saifullah, Rafal Drezewski |
| 2024 | ICCS | Enhancing Breast Cancer Diagnosis: A CNN-Based Approach for Medical Image Segmentation and Classification. | Shoffan Saifullah, Rafal Drezewski |
| 2024 | ICCS | Brain Tumor Segmentation Using Ensemble CNN-Transfer Learning Models: DeepLabV3plus and ResNet50 Approach. | Shoffan Saifullah, Rafal Drezewski |
| 2024 | PPSN | Automatic Brain Tumor Segmentation Using Convolutional Neural Networks: U-Net Framework with PSO-Tuned Hyperparameters. | Shoffan Saifullah, Rafal Drezewski |
| 2023 | ICCS | Sentiment Analysis Using Machine Learning Approach Based on Feature Extraction for Anxiety Detection. | Shoffan Saifullah, Rafal Drezewski, Felix Andika Dwiyanto, Agus Sasmito Aribowo, Yuli Fauziah |
| 2023 | KES | Modified Histogram Equalization for Improved CNN Medical Image Segmentation. | Shoffan Saifullah, Rafal Drezewski |
| 2023 | KES | Palm Oil Maturity Classification Using K-Nearest Neighbors Based on RGB and L*a*b Color Extraction. | Shoffan Saifullah, Dessyanto Boedi Prasetyo, Indahyani, Rafal Drezewski, Felix Andika Dwiyanto |
| 2022 | KES | Non-Destructive Egg Fertility Detection in Incubation Using SVM Classifier Based on GLCM Parameters. | Shoffan Saifullah, Rafal Drezewski |