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Automatic identification of herbal medicines using deep learning on leaf images Anita Ahmad Kasim; Lukman Nadjamudiin; Muhammad Bakri; Chairunnisa Ar Lamasitudju; Puguh Budi Prakoso; Anindita Septiarini; Bima Prihasto
International Journal of Advances in Intelligent Informatics Vol 12, No 2 (2026): May 2026
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia has a high diversity of medicinal plants that are widely used in traditional healthcare practices. Identification of medicinal plants is commonly based on leaf morphology; however, similarities in leaf shape, texture, and color often cause misidentification, particularly among non-experts. This limitation highlights the need for an automated and reliable identification approach. The primary objective of this study is to develop and evaluate a deep learning–based system for the automatic identification of medicinal plants using leaf images, with a specific focus on comparing the performance and efficiency of MobileNetV2 and ResNet50V2 architectures. The research design adopts an experimental approach using an internally collected dataset of medicinal plant leaf images representing multiple plant classes. The dataset is divided into training and testing sets to evaluate model generalization. The methodology involves image preprocessing steps, including resizing, normalization, and data augmentation, followed by the application of transfer learning using MobileNetV2 and ResNet50V2 as feature extractors. Both models are trained under the same experimental settings and evaluated using standard classification metrics, including accuracy, precision, recall, F1-score, and confusion matrix analysis. The main outcomes and results indicate that both deep learning models achieve high classification performance. MobileNetV2 achieves an accuracy of 98.77%, precision of 98.84%, recall of 98.77%, and F1-score of 98.77%, while ResNet50V2 achieves an accuracy of 97.53%, precision of 97.87%, recall of 97.53%, and F1-score of 97.58%. The results demonstrate that MobileNetV2 provides slightly superior performance with lower computational complexity. In conclusion, lightweight deep learning architectures such as MobileNetV2 are effective and efficient for medicinal plant leaf identification and are suitable for implementation in mobile or resource-constrained environments.
Robust Voice Anti-Spoofing for Indonesian Datasets Using Spectro-Temporal Graph Attention Networks Bima Prihasto; Boby Mugi Pratama; Adinia Amaliah
Poltanesa Vol 27 No 1 (2026): June 2026
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v27i1.3841

Abstract

As voice biometric systems face escalating threats from deepfake audio, securing non-English languages remains a critical vulnerability. This exploratory study aims to develop a localized Indonesian-language spoofing detection baseline, acknowledging constraints of a small, imbalanced dataset. We propose an approach combining AASIST spectro-temporal graph attention networks with a SAMO multi-center one-class learning loss function. Initial evaluations revealed substantial class overlap without acoustic perturbation, yielding a baseline equal error rate of 48.9%, highlighting under-resourced language vulnerabilities. However, an ablation study injecting controlled Gaussian noise acted as an optimal stochastic regularizer, significantly clarifying the decision boundaries between genuine and spoofed speech. This minor perturbation reduced the equal error rate to 44.05%, whereas excessive noise predictably destroyed the fundamental acoustic structure. These findings demonstrate that regularized multi-center geometries isolate synthetic artifacts, establishing a foundational proof-of-concept and highlighting the need for expanded corpora when securing Indonesian voice authentication infrastructures against advanced generative attacks.
Ambulance Siren Audio Classification Using Convolutional Neural Network for Medical Emergency Detection Ramadhan Paninggalih; Bima Prihasto; Maryo Inri Pratama; Rizky Irswanda Ramadhana; Misbahuddin Misbahuddin; Buan Anshari; Lalu Ahmad Syamsul Irfan Akbar; Giri Wahyu Wiriasto
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 2: April 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i2.20099

Abstract

The rapid detection of emergency vehicle sirens is critical for enhancing road safety and traffic management. This study proposes an automated classification system for ambulance sirens using a Convolutional Neural Network (CNN). The method utilizes Mel-Frequency Cepstral Coefficients (MFCC) to transform audio signals into 2D feature maps, allowing the model to capture distinct spectral and temporal patterns. The dataset was preprocessed using a stratified split to ensure balanced class distribution and prevent data leakage. Experimental results demonstrate that the CNN model achieves a high performance with an accuracy of 0.95, significantly outperforming baseline models such as Multi-Layer Perceptron (MLP) and XGBoost. Detailed evaluation through a confusion matrix indicates a consistent precision, recall, and F1-score of 0.95, proving the model’s robustness in distinguishing sirens from complex urban noise. The implementation of the Adam optimizer and early stopping mechanism ensured stable convergence and prevented overfitting. These findings suggest that the proposed CNN-MFCC framework provides a reliable solution for real-time emergency signal detection, offering a substantial contribution to intelligent transportation systems.