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                <text>PCA and t-SNE Implementation for KNN Hypertension Classification</text>
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                <text>Hypertension;KNN;Dimensionality Reduction;PCA;t-SNE</text>
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                <text>Hypertension is a condition that, if allowed to increase, can significantly injure internal organs due to high blood pressure. The objective of this study is to use the K-Nearest Neighbor (KNN) algorithm along with PCA and t-SNE to accurately identify four categories of Hypertension,Normal, Hypertension, Stage 1 Hypertension, and Stage 2Hypertension. After establishing the scope, a dataset consistingof 7,794 samples was sourced from Labuang Baji Regional General Hospital, Makassar, and contained  age,  weight,  and  systolic  and  diastolic  blood  pressure  parameters.  The  class  distribution  is  Normal  (36.3%), Hypertension (43.12%), Stage 1 Hypertension (8.29%), and Stage 2 Hypertension (12.31%). Experimental results show that the  KNN  base  model  achieved  99%  accuracy,  KNN  with  PCA  reached  100%,  and  KNN  with  t-SNE  attained  99%.  Cross-validation was used to evaluate model generalization, yielding accuracies of 91%, 94%, and 91%, respectively. These findings suggest that KNN, particularly when integrated with t-SNE, is highly effective in visualizing and classifying non-linear data structures.  Furthermore,  this  study  demonstrates  that  incorporating  dimensionalityreduction  techniques  enhances  the interpretability of classified hypertension data, which is crucial for informed decision-making by mental healthcommittees</text>
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                <text>Andi Aulia Cahyana Resky1*, Jessica Crisfin Lapendy2, Andi Akram Nur Risal3*, Dewi Fatmarani Surianto4, Abdul Wahid</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6208/1025</text>
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                <text>Informatics and Computer Engineering, Engineering, Makassar State University, Makassar, Indonesia</text>
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                <text>FAJAR BAGUS W</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>Ant Colony Optimization for Jakarta Historical Tours: A Comparative Analysis of GPS and Map Image Approaches</text>
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                <text>Ant Colony Optimization; Historical Sites; Intelligent System;Traveling Salesman Problem;Tour Planning</text>
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                <text>The Traveling Salesman Problem (TSP) is a problem that represents a difficult combinatorial optimization problem starting from practical problems. The ant colony optimization (ACO) algorithm is implemented in several topics, particularly in solving combinatorial  optimization  problems. ACO  is inspired  by  the behavior of  ants in  searching  for the  shortest  path  between  a food source and their nest. In this research, ACO isused to find the best path or traveling salesman problem for museums and historical sites in Jakartacapital city of Indonesia. This research employs an approach based on the location's coordinates or latitude  and  longitude,  while  another  method  depends  on  coordinate  data  obtained  from  a  supplied  map  image.After implementing both models, it can be concluded that the ACO model is not very good at solving TSP using actual coordinates. Meanwhile,  the  algorithm  can  quickly  find near-optimalpathswhen  using  coordinates  from  a  map  image. The  algorithm generates the optimal path in 11 seconds, reducing the initial distance from 17.938 to 4.430, using 4.731 ants and 75 trips with a distance power of 1.Statistical random variation was also performed, which proved that the algorithm is flexible and reliable when tested under various conditions</text>
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                <text>Gabriel Fortino Bodhi1*, Charleen2,Devi Fitrianah</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/5968/1024</text>
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                <text>Computer Science, Binus Graduate Program, Bina Nusantara University, Jakarta, Indonesia</text>
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                <text>FAJAR BAGUS W</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>Hybrid Gradient Descent Grey Wolf Optimizer for Machine Learning Performance Enhancement</text>
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                <text>Hybrid  Gradient  Descent  Grey  Wolf  Optimizer; HyperparameterOptimization; DiabetesPrediction; Machine Learning;Support Vector Machine(SVM</text>
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                <text>Advancements  in  machine  learning  have  enabled  the  development  of  more  accurate  and  efficient health  prediction  models. This study aims to improve diabetes prediction performance using the Support Vector Machine (SVM) model optimized with the  Hybrid  Gradient  Descent  Gray  Wolf  Optimizer  (HGD-GWO)  method.  SVM  is  a  robust  machine  learning  algorithm  for classification and regression. Still, itsperformance depends significantly on selecting appropriate hyperparameters such as regularization (C), kernel coefficient (γ), and polynomial kernel degree (d). The HGD-GWO  method  synergizes  Gradient Descent  for local  optimization  and  Gray  Wolf  Optimizer  for  global  solution  exploration.  Using  the  Pima  Indians  Diabetes dataset,  the process  includes  normalization,  hyperparameter  optimization,  data division,  and  performance  evaluation  using accuracy, precision, recall, and F1-score metrics. The optimized SVM achieved an accuracy of 81.17%, with precision, recall, and F1-score values of 75.00%, 57.45%, and 65.06%, respectively, at a data ratio of80%:20%. These findings highlight the potential of HGD-GWO in enhancing predictive models, particularly for early diabetes detection.</text>
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            <description>An entity primarily responsible for making the resource</description>
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                <text>Sri Rossa Aisyah Puteri Baharie1*, Sugiyarto Surono2, Aris Thobirin3</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6203/1021</text>
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                <text> Matematika, Sains dan Teknologi Terapan, Universitas Ahmad Dahlan, Yogyakarta, Indonesia</text>
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                <text>16-02-2025</text>
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                <text>FAJAR BAGUS W</text>
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                <text>Advancing Hate Speech Detection in Indonesian Language Using Graph Neural NetworksandTF-IDF</text>
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                <text>Context-Aware  Sentiment  Analysis;Graph  Neural  Network  (GNN);Hate SpeechDetection;SocialMedia;XTF-IDF</text>
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                <text>Most of thehate speech and abusive content on social media, particularly in the Indonesian language, presents significant challenges for content moderation systems. Previous research has applied machine learning models such as Recurrent Neural Networks (RNN), Support Vector Machines (SVM), and Convolutional Neural Networks (CNN) to address this issue. However, these approaches are limited in their abilityto capture the relational and contextual nuances inherent in the data, resulting in suboptimal performance.This study introduces anapproach by combining Graph Neural Networks (GNN) with Term Frequency-Inverse Document Frequency (TF-IDF) for feature  extraction  to  improve  hate  speech  detection  on  Twitter  (platformX).  The  dataset  consists  of  13,169 Indonesian  tweets,  manually  labeled  for  Hate  Speech  and  Abusive  categories.  Preprocessing  steps  include  text cleaning,  stemming, stop-wordremoval,  and  normalization.  The  GNN  model  achieved  superior  results,  with accuracy scores of 92.90% for Abusive and 89.78% for Hate Speech, significantly outperforming the RNN model, which achieved accuracyof 86.09% and 86.15%, respectively. Thisstudy highlights the advantage of graph-based approaches in capturing complex relationships within text data. Future research can explore expanding datasets to include regional dialects and integrating advanced feature extraction techniques like Word2Vec or BERT. This study establishes a robust framework for improving hate speech detection, offering a valuable contribution to safer digital environments.</text>
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            <description>An entity primarily responsible for making the resource</description>
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                <text>Syaikha Amirah Zikrina1*, Fitriyani2</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6179/1020</text>
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                <text>Department of Data Science, Facultyof Informatics, Telkom University, Bandung, Indonesia</text>
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                <text>16-02-2025</text>
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                <text>FAJAR BAGUS W</text>
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                <text>Application of VGG16 in Automated Detection of Bone Fractures in X-Ray Images</text>
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                <text>Deep Learning; Bone Fracture; X-Ray Images; Convolutional Neural Network; VGG16</text>
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                <text>The purpose of this research is to determine whether or not a deep learning model called VGG16 can automatically identify bone fractures in X-ray pictures. The dataset, sourced from Kaggle, includes 10,522 images of human hand and foot bones, which underwent preprocessing steps such as normalization and resizing to 224x224 pixels to enhance data quality. The study utilizes the VGG16 architecture, pre-trained on ImageNet, as a base model, with transfer learning applied to adapt the model for  fracture  detection  by  fine-tuning  its  weights.  This  architecture  consists  of  five  blocks  of  convolutional  and  max-pooling layers to effectively extract and enhance information from the images for precise classification. The training and testing phases utilized an 80:20 split of the data, employing binary cross-entropy as the loss function and the Adam optimizer for efficient weight updates. The model achieved high performance, with an accuracy of 99.25%, precision of 98.62%, recall of 98.88%, and  an F1-score  of  99.16%  over 25epochs with a  batch  size  of  128.Experimental  results  indicate that smaller  batch  sizes generally enhance accuracy and reduce loss values, with batch sizes of 128 and 16 yielding optimal performance. The study's findings underscore the potential of VGG16 in improving diagnostic accuracyand reliability in medical imaging, providing a robust tool for fracture detection. Future research should continue exploring hyperparameter optimization to further enhance model performance while balancing computational efficiency</text>
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                <text>Resky Adhyaksa1, Bedy Purnama2</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6101/1018</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>NLP-Based Intent Classification Model for Academic Curriculum Chatbots in Universities Study Programs</text>
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                <text>Chatbots are increasingly prevalent in various fields, including academic fields. Universities often rely on lecturers and staff for information access, which can lead to delays, limited availability outside working hours, and the risk of missedquestions. This study aims to develop a chatbot model capable of addressingquestionsabout the curriculum through intent classification, reducing  reliance  on  manual  responses, and providing  a  solution  that  ensures  quick,accurate  information  retrieval. The research  focuses  on  optimizingthe IndoBERT model  for  intent  classification  andaddresses challengesthatarose  due  to imbalanceddata,  which  could  have  impacted  model  performance. Data  was  collected  through  an  open  poll  on  common curriculum-related  questions  asked  by  students.To  address  data  imbalance,  wetried  oversampling  techniques,  such  as SMOTE, B-SMOTE,  ADASYN,  and  Data  Augmentation. Data  augmentation  was  chosen  and  successfully  addressed  the imbalance problem while maintaining data semantics effectively. Weachieved the best model with hyperparameters batch size of 8,learning rate of 0.00001, 15 epochs, and 64 neurons in the hidden layer,resultingin 98.7% accuracy on the test data.  Evaluation  metrics  further  demonstrate  the  model's  robustness  across  multiple  intents. This  research  demonstrates  the advantages of the IndoBERT model inintent classification foracademic chatbots, achieving excellent performance</text>
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                <text>Najma Rafifah Putri Syallya1*, Anindya Apriliyanti Pravitasari2, Afrida Helen</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6276/1017</text>
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                <text>Department of Statistics, Universitas Padjadjaran, Bandung, Indonesia </text>
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                <text>FAJAR BAGUS W</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>Question Answering through Transfer Learning on Closed-Domain Educational Websites</text>
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                <text>Navigating complex educational websites poses challenges for users looking for specific information. This research discusses the  problem  of  efficient information  search  on  closed-domain  educational  platforms,  focusing  on  the  Universitas  Indonesia website. Leveraging Natural Language Processing (NLP), we explore the effectiveness of transfer learning models in Closed Domain Question Answering (QA). The performance of three BERT-based models, including IndoBERT, RoBERTa, and XLM-RoBERTa, are compared in transfer and non-transfer learning scenarios. Our result reveals that transfer learning significantly improves QA model performance. The models using a transfer learning scenario showed up to a 4.91\% improvement in the F-1 score against those using a non-transfer learning scenario. XLM-RoBERTa base outperforms all other models, achieving the F-1 score of61.72\%. This study provides valuable insights into Indonesian-language NLP tasks, emphasizing the efficacy of transfer learning in improving closed-domain QA on educational websites. This research advances our understanding of effective  information  retrieval  strategies,  with  implications  for  improving  user  experience  and  efficiency  in  accessing information from educational websites.</text>
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                <text>Matiin Laugiwa Prawira Putra1*, Evi Yulianti</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6163/1016</text>
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                <text>Computer Science, Facultyof Computer Science, University of Indonesia, Depok, Indonesia</text>
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                <text>FAJAR BAGUS W</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>Enhancing Premier League Match Outcome Prediction Using Support Vector Machine with Ensemble Techniques: A Comparative Study on Bagging and Boosting</text>
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                <text>Predicting football match outcomes is a significant challenge in sports analytics, requiring accurate and resilient models. This study evaluates the effectiveness of ensemble techniques, specifically Bagging and Boosting, in enhancing the performance of Support Vector Machine (SVM) models for predicting match outcomes in the English Premier League. The dataset comprises detailed  match  statistics  from  1,520  matches  across  multiple  seasons,  including  features  such  as team  performance,  player statistics, and match outcomes. Four models were examined: baseline SVM, SVM with Bagging, SVM with Boosting, and a combined SVM + Bagging + Boosting approach. Evaluation metrics include accuracy, recall, precision, F1 score, and ROC-AUC,  providing  a  comprehensive  assessment  of  each  model's  performance.  Experimental  results  indicatethat  ensemble methods  substantially  improve  model  accuracy  and  stability,  with  the  SVM  +  Bagging  +  Boosting  combination  achieving perfect accuracy,  recall,  precision,  and  F1  scores,  alongside anROC-AUC  value  of  0.88.  However,  this  model's  slightly reduced ROC-AUC compared to others and its high computational cost highlight potential risks of overfitting and the need for significant  resources.  These  findings  underscore  the  practical  potential  of  combining  Bagging  and  Boosting  with  SVM  for robust and accurate predictions. Limitations include the dataset's focus on a single league and the high resource requirements for  ensemble  methods.  Future  research  could  expand  this  approach  to  other  sports  and  leagues,  improve  computational efficiency, and explore real-time predictive applications.</text>
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                <text>Agus Perdana Windarto1*, Putrama Alkhairi2, Johan Muslim3</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6173/1015</text>
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                <text>Master's Program, Informatics Study Program, STIKOM Tunas Bangsa, Pematangsiantar, North Sumatra, Indonesia</text>
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                  <text>Vol 9 No 1 (2025)</text>
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                <text>mpact of Adaptive Synthetic on Naïve Bayes Accuracy in Imbalanced Anemia Detection Datasets</text>
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                <text>ADASYN;Class Imbalance; Oversampling; Machine Learning; Naïve Bayes;</text>
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                <text>This research aims to analyze the impact of the Adaptive Synthetic (ADASYN) oversampling technique on the performance of the Naïve Bayes classification algorithm on datasets with class imbalance. Class imbalance is a common problem in machine learning thatcan cause bias in prediction results, especially in minority classes. ADASYNis one of the oversampling methods that  focuses  on  adaptively  synthesizing  new  data  for  minority  classes.  In  this  study,  the  performance  of  the  Naïve  Bayes algorithm was tested onAnemia Diagnosisdatasets before and after the application of ADASYN. This dataset contains 104 instances, 5 attributes, and 2 classes, and has an imbalance ratio of 3. The evaluation was carried out by comparing accuracy, confusion matrix, precision, recall, and F1-score to obtain a more comprehensive picture of the effectiveness of ADASYNin improving  Naïve  Bayes.The  results  of  the  study  show  that  the  performance  of  the  oversampling  method  depends  on  the imbalance ratio so it is important to ensure that the oversampling method does not cause overfitting and this can be overcome by using ADASYN which only selects Selected Neighbors.The results showed that ADASYNsignificantly increased accuracy from 0.57 to 0.78, precision from 0.17 to 0.74, recall from 0.20 to 0.88, and F1-Score from 0.18 to 0.80.In this study, we also compared the application of ADASYN and SMOTE on the Naïve Bayes algorithm. The results show that ADASYN outperforms SMOTE across all key metrics—accuracy, precision, recall, and F1-Score—while the accuracy improvements were statistically significant (p-value = 0.00903)</text>
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                <text>Muhammad Khahfi Zuhanda1*, Lisya Permata2, Hartono3, Erianto Ongko4, Desniarti</text>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6031/1013</text>
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            <name>Publisher</name>
            <description>An entity responsible for making the resource available</description>
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              <elementText elementTextId="112015">
                <text>Department of Informatics, Faculty of Engineering, Universitas Medan Area, Medan,Indonesia</text>
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              <elementText elementTextId="112016">
                <text>27-01-2025</text>
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            <name>Contributor</name>
            <description>An entity responsible for making contributions to the resource</description>
            <elementTextContainer>
              <elementText elementTextId="112017">
                <text>FAJAR BAGUS W</text>
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                <text>ENGLISH</text>
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                  <text>Vol 9 No 1 (2025)</text>
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      <description>A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.</description>
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          <element elementId="50">
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                <text>Real-Time Location Monitoring and Routine Reminders Based on Internet of Things Integrated with Mobile for Dementia Disorder</text>
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          <element elementId="49">
            <name>Subject</name>
            <description>The topic of the resource</description>
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                <text>dementia;Global Positioning System(GPS);Internet of Things (IoT); real-time monitoring; reminder application</text>
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                <text>The increasing number of dementia sufferers worldwide demands a new approach to monitoring daily activities and locations to reduce the risk of getting lost. This study develops a real-time location monitoring and routine reminder system based on the Internet of Things (IoT), integrated with a mobile application. The system is designed to assist individuals with dementia, particularly  elderly  and  younger  adults  with  cognitive  impairments,  in  performing  daily  routines  independently,  while providing a sense of security for families and caregivers through real-time location tracking features. This technology utilizes GPS for accurate location monitoring, daily activity reminders, and automatic notifications for caregivers in case of deviations from usual routes.The system development includes prototype creationthat consistsof a mobile application and IoT tools such as the ESP32 WROOM microcontroller, Ublox Neo6M V2 GPS module, and SIM800L V2 GSM module. Functionality testing and  impact evaluation  were  conducted  to  assess its effectiveness in  improving  the  quality  of  life for  dementia  sufferers  and facilitating  monitoring  for  caregivers.  With  features  such  as  daily  reminders,  emergency  contacts,  and  real-time  data integration, this system is intended not only for dementia patients but also for families and caregivers seeking tools to ensure the safety and comfort of the sufferers. It is expected that this research will enhance the independence of dementia patients in performing daily activities and provide innovative solutions through IoT technology to improve well-being across different age groups</text>
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                <text>Dwi Rangga Okta Zuhdiyanto1*, Yuli Asriningtias2</text>
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            <description>A related resource from which the described resource is derived</description>
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                <text>https://jurnal.iaii.or.id/index.php/RESTI/article/view/6105/1012</text>
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              <elementText elementTextId="112004">
                <text>Department of Informatics, Faculty of Science and Technology, Universitas Teknologi Yogyakarta, Yogyakarta, Indonesia</text>
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            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
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                <text>26-01-2025</text>
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            <description>An entity responsible for making contributions to the resource</description>
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                <text>FAJAR BAGUS W</text>
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            <description>The file format, physical medium, or dimensions of the resource</description>
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                <text>PDF</text>
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            <description>A language of the resource</description>
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                <text>ENGLISH</text>
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