Science, Technology, and Communication Journal
https://sintechcomjournal.com/index.php/stc
<p><strong>Science, Technology, and Communication Journal (SINTECHCOM Journal)</strong> is a peer-reviewed journal (e-ISSN: <a href="https://portal.issn.org/resource/ISSN/2774-8782" target="_blank" rel="noopener"><strong>2774-8782</strong></a> | p-ISSN: -) published regularly in February, June, and October by the <a href="https://drive.google.com/file/d/11GdUsTZWy_-IMFLCJhGancn8zixEqF5A/view?usp=sharing" target="_blank" rel="noopener"><strong><u>Lembaga Studi Pendidikan and Rekayasa Alam Riau (LSPRAR)</u></strong></a> in collaborates with the <a href="https://drive.google.com/file/d/1b7yyhUhfpkJZcz2YAIfUevvsQEcvjO2C/view?usp=sharing" target="_blank" rel="noopener"><span style="text-decoration: underline;"><strong>Indonesian Physical Society (PSI)-Riau</strong></span></a> and <a href="https://drive.google.com/file/d/1j_jbHyIuRRNnVs-x9v2S3rwuViooWIzf/view?usp=sharing" target="_blank" rel="noopener"><strong>Universitas Islam Mulia Yogyakarta</strong></a>. <strong>SINTECHCOM Journal</strong> is a periodical publication that publishes scientific articles on research results in the fields of basic science and engineering. <strong>SINTECHCOM Journal</strong> has been accredited at the <strong>SINTA 3</strong> level based on the Decree of the Director General of Research and Development Number <a title="SK SINTA 3 SINTECHCOM 2026" href="https://drive.google.com/file/d/1iorFmPMgoH5CAx8FOf7wqFiLqWjNAoq1/view?usp=sharing" target="_blank" rel="noopener"><strong>156/C/C3/KPT/2026</strong></a>.</p>Lembaga Studi Pendidikan dan Rekayasa Alam Riauen-USScience, Technology, and Communication Journal2774-8782Systematic literature review using deep learning in plant genomic prediction
https://sintechcomjournal.com/index.php/stc/article/view/368
<p>Genomic prediction (GP) is a critical approach in plant breeding used to forecast agronomic traits based on genetic marker data. In recent years, machine learning and deep learning methods have been increasingly applied in genomic prediction to address the limitations of traditional methods such as genomic best linear unbiased prediction (GBLUP). This systematic literature review aims to evaluate research trends over the past decade (2015–2025) regarding the application of deep learning in genomic prediction for crops, encompassing publication trends, publication sources, dataset types, key research topics, methods/algorithms used, implementation schemes, and commonly used evaluation metrics. The study follows the PRISMA protocol, with literature searches conducted on the primary databases Scopus and SpringerLink. From thousands of identified articles, 43 studies meeting the inclusion criteria were selected. The data revealed a significant increase in publications since 2018, peaking in 2024. The majority of articles were published in open-access journals, with notable contributions in Frontiers in Plant Science, Scientific Reports, and G3. The research covers various crop types, including wheat, maize, rice, soybean, sugarcane, and others, with diverse deep learning schemes such as convolutional neural networks (CNN), Ensemble Stacking, and Multi-Task Learning, often compared to conventional methods. The synthesis indicates that deep learning frequently enhances the accuracy of genomic prediction, particularly for complex multi-environment or multi-trait data. However, in some cases, classical linear/Bayesian models remain competitive. The application of deep learning in plant genomic prediction is rapidly advancing and demonstrates significant potential for improving crop selection performance.</p>Rizki Darmawan
Copyright (c) 2026 Rizki Darmawan
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2026-06-012026-06-016317318810.59190/stc.v6i3.368Security audit of a pharmacy information system using blackbox testing and CIA triad: A case study
https://sintechcomjournal.com/index.php/stc/article/view/370
<p>Pharmacy information systems are essential for managing drug inventory, sales, financial reports, and user administration, yet they are exposed to security risks like data manipulation, account misuse, and information leakage. This study integrates Blackbox Testing and the CIA Triad (Confidentiality, Integrity, Availability) to audit a pharmacy application. Testing employed 19 security scenarios, supported by tools such as SQLmap, Burp Suite, OWASP ZAP, and Apache JMeter to detect vulnerabilities without accessing source code. Results show that the system meets availability requirements and provides audit logging for user activity monitoring. However, confidentiality and integrity weaknesses were identified: input validation allowed illogical data like negative stock, potential SQL Injection existed on the login page, and password encryption was insufficient. Strengthening input sanitization, adopting strong encryption, and enhancing authentication are necessary to close security gaps and improve system reliability.</p>Rahmalia SyahputriM Rivaldi Arwin Hadi Wijaya
Copyright (c) 2026 Rahmalia Syahputri, M Rivaldi Arwin Hadi Wijaya
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2026-06-032026-06-036318919810.59190/stc.v6i3.370QoS aware traffic shaping for TikTok live streaming over congested LAN using MikroTik queue tree
https://sintechcomjournal.com/index.php/stc/article/view/369
<p>Real time video streaming applications such as TikTok Live are highly sensitive to network instability, especially under bandwidth contention on shared access networks. This paper evaluates a Quality of Service (QoS)-aware traffic shaping scheme for TikTok live streaming in a congested local area network using a MikroTik router with a queue tree configuration. TikTok traffic is identified and assigned minimum bandwidth guarantees and highest priority, while non streaming traffic is treated as best effort. Network performance is assessed under two scenarios: baseline (without shaping) and experiment (with shaping), sing the TIPHON standard and four QoS parameters: throughput, delay, jitter, and packet loss. The experimental results show that although the average throughput only increases slightly from 70.67 Kbps to 80 Kbps and remains in the “Poor” category, the proposed scheme significantly improves temporal QoS metrics: average delay is reduced from 88.65 ms to 45.16 ms (“Very Good”), jitter decreases from 95.61 ms to 89.80 ms (“Good”), and packet loss drops from 7.66% to 3.78% (“Good”). These findings indicate that priority-based traffic shaping using a queue tree can effectively stabilize latency and data delivery for TikTok live streaming on bandwidth-limited networks without requiring capacity upgrades.</p>Diah RisqiwatiWiryawan Ananta Pratama PanigoroHanugra Aulia Sidharta
Copyright (c) 2026 Diah Risqiwati, Wiryawan Ananta Pratama Panigoro, Hanugra Aulia Sidharta
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2026-06-042026-06-046319920610.59190/stc.v6i3.369Robust cryptocurrency price forecasting using a Bayesian-optimized CNN–LSTM hybrid model
https://sintechcomjournal.com/index.php/stc/article/view/377
<p>The rapid growth of cryptocurrency has caused the price movements of digital assets such as Bitcoin (BTC) and Ethereum (ETH) to become highly volatile and difficult to predict. This study aims to develop a cryptocurrency price prediction model using a hybrid convolutional neural network–long short-term memory (CNN-LSTM) architecture optimized with Bayesian Optimization. The data used in this study consisted of daily historical data for Bitcoin and Ethereum from January 1, 2018, to December 31, 2025, obtained from Yahoo Finance. The research stages included data preprocessing, normalization using Min-Max Scaling, sequence generation using the sliding window method (window sizes of 30, 60, and 90), CNN-LSTM model development, hyperparameter optimization using Bayesian Optimization (30, 50, and 100 trials), and evaluation using regression metrics including MSE, RMSE, MAE, MAPE, and R<sup>2</sup>. The results showed that the hybrid CNN-LSTM model outperformed the standalone CNN and LSTM models, with RMSE reductions of 27% – 59% for BTC and 18% – 19% for ETH. For Bitcoin data, the best model was obtained using 30 trials with a window size of 30, achieving an RMSE of $2,588.33, MAE of $2,004.23, MAPE of 1.99%, and R<sup>2</sup> of 0.9468. Meanwhile, for Ethereum data, the best model was obtained using 50 trials with a window size of 60, achieving an RMSE of $138.56, MAE of $99.75, MAPE of 3.27%, and R<sup>2</sup> of 0.9737. These results indicate that the combination of CNN-LSTM and Bayesian Optimization is effective for predicting cryptocurrency prices with non-linear and volatile characteristics.</p>Abdul Aziz SultonFitri InsaniOkfalisa OkfalisaLestari HandayaniNazruddin Safaat Harahap
Copyright (c) 2026 Abdul Aziz Sulton, Fitri Insani, Okfalisa Okfalisa, Lestari Handayani, Nazruddin Safaat Harahap
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2026-06-092026-06-096320721810.59190/stc.v6i3.377An IndoBERT-based framework for emotion classification in Indonesian song lyrics
https://sintechcomjournal.com/index.php/stc/article/view/372
<p>Emotion classification in song lyrics represented a significant research area within natural language processing, yet studies targeting Indonesian-language lyrics remained scarce due to the limited availability of labeled datasets and the absence of domain-specific models. This study developed and evaluated an emotion classification model for Indonesian song lyrics using fine-tuned IndoBERT-base-p2, a transformer-based language model pre-trained on a large Indonesian corpus. A dataset of 1,025 labeled lyric entries was compiled from Kaggle, Genius, and KapanLagi, covering four emotion categories: joy, sadness, fear, and anger. Preprocessing encompassed duplicate removal, case folding, structural marker removal, and non-alphabetic character cleaning. Nine fine-tuning experiments were conducted by systematically varying learning rate and dropout rate, with early stopping applied based on validation loss. The optimal configuration employed a learning rate of 3 × 10<sup>-5</sup> and a dropout rate of 0.1, achieving 75.73% accuracy and 75.85% macro-averaged F1-score on the held-out test set. Joy and anger were classified most reliably, attaining F1-scores of 82.76% and 76.47% respectively, while sadness presented the greatest challenge, exhibiting the lowest precision of 64.10% alongside a recall of 80.65%, indicating a systematic tendency of the model to over-predict this class. These findings demonstrated that IndoBERT-base-p2, when fine-tuned with appropriate hyperparameter configuration, served as an effective approach for domain-specific emotion classification in Indonesian song lyrics.</p>Agustar AlfonsoFitri InsaniOkfalisa OkfalisaMuhammad FikryFitra KurniaSri Wahyuni
Copyright (c) 2026 Agustar Alfonso, Fitri Insani, Okfalisa Okfalisa, Muhammad Fikry, Fitra Kurnia, Sri Wahyuni
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2026-06-102026-06-106321922810.59190/stc.v6i3.372Interpretative comparative analysis of LSTM and random forest for multi-label classification of English Qur’an translation
https://sintechcomjournal.com/index.php/stc/article/view/373
<p>The rapid growth of digital Qur'anic resources has created a need for automated systems capable of accurately categorizing verses by thematic content. The thematic complexity of Qur'anic text, in which a single verse may simultaneously convey multiple moral, spiritual, and social messages, presents a significant challenge for automated classification systems. This study conducts a comparative and explainable evaluation of long short-term memory (LSTM) and random forest (RF) for multi-label classification of English Qur'an translations across six thematic categories: arkanul Islam, iman, amal, human and community relations, akhlak, and history and story. To address severe class imbalance, synthetic minority over-sampling technique (SMOTE) was applied per label, expanding the training set from 4,489 to 19,658 samples. LSTM captured sequential contextual relationships through integer token embeddings, while RF relied on TF-IDF vector representations. Evaluated on 1,248 unseen test verses, RF achieved a higher macro F1-score (0.2748) compared to LSTM (0.2432), while LSTM retained marginally higher accuracy (79.61% vs. 79.55%). Per-label analysis revealed that both models performed best on lexically explicit labels such as arkanul Islam and iman, but consistently failed on abstract categories such as akhlak, where LSTM recorded near-zero recall of 0.61% and RF only 6.10%. This study contributes empirical evidence that TF-IDF-based SMOTE interpolation is more effective for minority-class augmentation than token-sequence interpolation, and demonstrates that macro F1-score is a more appropriate evaluation metric than accuracy for imbalanced multi-label religious text classification.</p>Nur DelifahNazruddin Safaat HarahapOkfalisa OkfalisaElvia Budianita
Copyright (c) 2026 Nur Delifah, Nazruddin Safaat Harahap, Okfalisa Okfalisa, Elvia Budianita
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2026-06-112026-06-116322924010.59190/stc.v6i3.373Workflow reproducibility and observability layer for Tomofast-x gravity inversion experiments
https://sintechcomjournal.com/index.php/stc/article/view/374
<p>Tomofast-x is an open-source parallel platform for gravity and magnetic inversion; however, reproducible execution, runtime observability, and workflow traceability are commonly managed outside the inversion software itself. This study presented a provenance-aware and telemetry-aware experimentation environment for reproducible Tomofast-x workflows and evaluated it using four publicly available reference scenarios archived on Zenodo. Each scenario was reproduced three times, resulting in 12 platform-managed runs executed through isolated workspaces with structured provenance and telemetry collection. The reproduced solutions showed close agreement with the reference outputs, with mean absolute root mean square error differences ranging from approximately 2.47 × 10<sup>-11</sup> to 4.72 × 10<sup>-9</sup>. Runtime telemetry revealed substantial operational differences between scenarios. The uncompressed baseline required approximately 10.9 GB peak memory, whereas compressed scenarios required approximately 202 – 247 MB. Runtime decreased from approximately 436 s in the baseline case to approximately 300 – 340 s in compressed executions. Telemetry was successfully collected for all runs, including processor utilization, observed process-level RAM, runtime progression, and message passing interface (MPI) worker activity. Workflow robustness was further evaluated using injected failure cases involving corrupted parameter files, missing data grids, invalid execution paths, and simulated MPI failures. The results demonstrated that the proposed platform provided reproducible, provenance-aware, and telemetry-aware experimentation support for workstation-scale Tomofast-x workflows.</p>I Wayan Pio Pratama
Copyright (c) 2026 I Wayan Pio Pratama
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2026-06-122026-06-126324125410.59190/stc.v6i3.374Adsorption of lead (II) ions using NaOH-activated matoa fruit shell (Pometia pinnata): Characterization and adsorption kinetics
https://sintechcomjournal.com/index.php/stc/article/view/382
<p>This study focuses on the utilization of matoa fruit shell waste, which contains cellulose, as a potential biosorbent for binding heavy metals in solution. The study aims to examine the ability of matoa fruit shell powder (<em>Pometia pinnata</em>) as a biosorbent in removing lead (II) ions from solution and to analyze adsorption characteristics through kinetic studies. The research methods included biosorbent activation using NaOH at activation ratios of 1:1, 1:2, 1:3, 1:4, and 1:5 (w/v). The adsorption process was conducted with variations in parameters, including biosorbent dose, pH, and contact time. Characterization was performed using FTIR to determine functional groups, SEM-EDS to examine surface morphology and elemental composition, and ICP-OES to determine lead concentration in the solution. Kinetic analysis employed first-order pseudo-kinetic, second-order pseudo-kinetic, and intraparticle diffusion models. FTIR analysis results indicated the involvement of hydroxyl (-OH) and carboxyl (-COO<sup>-</sup>) groups in the lead (II) ion binding process. The results of the study indicate that optimal adsorption conditions were achieved at a dose of 0.05 grams, a pH of 6, and a contact time of 60 minutes, with an adsorption efficiency of 90.76% and an adsorption capacity of 27.59 mg/g. The most suitable kinetic model was the pseudo-second-order model (R<sup>2</sup> = 0.9999), indicating a chemisorption mechanism.</p>Fadhil Maulana HarahapT Abu HanifahSofia Anita
Copyright (c) 2026 Fadhil Maulana Harahap, T Abu Hanifah, Sofia Anita
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2026-06-152026-06-156325527010.59190/stc.v6i3.382Enhancing Indonesian hadith classification through multi-word embedding and support vector machine
https://sintechcomjournal.com/index.php/stc/article/view/384
<p>Hadith classification plays an important role in supporting the organization and retrieval of Islamic knowledge in digital environments. However, the increasing volume of digital hadith collections presents challenges for manual classification, making automated approaches increasingly necessary. This study proposes a hadith text classification framework based on support vector machine (SVM) and a Multi-Word Embedding approach. The dataset used in this study was obtained from the Kaggle hadith dataset repository and consists of 34,441 hadith records. The textual data were preprocessed through case folding, noise removal, stopword removal, and stemming before feature extraction. Three embedding strategies were evaluated, namely Word2Vec, FastText, and the proposed multi-word embedding, which combines Word2Vec and FastText representations through vector concatenation. The generated feature vectors were subsequently classified using SVM and evaluated using accuracy, precision, recall, and F1-score. Experimental results show that the proposed multi-word embedding approach achieved the best performance, obtaining an accuracy of 75.58%, precision of 75.68%, recall of 75.58%, and F1-score of 75.46%. These results outperform Word2Vec + SVM and FastText + SVM, demonstrating that the integration of contextual semantic and subword-level information produces richer feature representations and improves classification effectiveness. The findings indicate that multi-word embedding is a promising approach for automated hadith text classification and can contribute to the development of intelligent Islamic information systems.</p>Mila HastatiJunadhi JunadhiSusi ErlindaAgustin Agustin
Copyright (c) 2026 Mila Hastati, Junadhi Junadhi, Susi Erlinda, Agustin Agustin
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2026-06-162026-06-166327128210.59190/stc.v6i3.384The application of visual programming technology to classify mango leaves using a convolutional neural network
https://sintechcomjournal.com/index.php/stc/article/view/388
<p>Leaf images are representations of leaves captured using digital cameras, which visually display the morphology and structure of the leaves. The classification of mango fruit can be identified from the type of leaves by using a convolutional neural network (CNN). The aim of this research is to obtain information on the type of mango fruit based on leaf type using image processing. The experimental setup involved the application of the test data set and the training data set to the classification of mango leaves, utilising iterations on both the training and testing data sets. This process involved the use of images exhibiting slight variations in shape, both in terms of image position and leaf type, to facilitate a comparison with images of the intended leaf type and leaves not included in the training classification. The experimental results yielded an accuracy level of 80.76%, validating the efficacy of the approach.</p>Silfia AndiniTeuku RadillahSumijan Sumijan
Copyright (c) 2026 Silfia Andini, Teuku Radillah, Sumijan Sumijan
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2026-06-192026-06-196328329210.59190/stc.v6i3.388