Abstract:The cash flow statement presents the company's cash flows are divided into 3 categories, which is operating, investing and financing activities. The purpose of this research is to examine and analyze cash flow shenanigans…
s at PT Cakra Mineral Tbk in 2014-2016. This research is in the form of a case study involving fraud cases committed by PT Cakra Mineral Tbk. In detecting and analyzing fraud in company financial statements, this study uses secondary data that can be obtained from the IDX website or company website. The results of the analysis show that there are indications that PT Cakra Mineral Tbk has fake cash flows because the company consolidated its financial statements with two companies that had not been legally acquired. This can lead to an increase in revenue as shown in the 2016 report. This significant increase in sales can also be caused by an acquisition agreement that has beautified its financial statements. Apart from that, this company can also be said to be a red flag of selling receivables due to a drastic decrease of receivables in 2016, while in previous years there was no decrease as much. Based on the results of the analysis, this fraud has caused losses to various parties.
Abstract:This study aims to analyze and compare the strategies, methods and tools used by various institutions in the world and different countries in detecting fraud. Currently, Fraud has become a common thing in the world of economics…
onomics and business. As one of the preventive measures, robust detection is required. Methods and ways of detecting fraud are constantly changing and improving. Where every country certainly has a strategy in dealing with fraud cases to protect the country's economy. Without an appropriate strategy, it will facilitate further crime. This research will also explain fraud detection methods that have been applied by various institutions. The data before and after the Covid period did not show a very significant difference, so it can be concluded that whether external influences from outside the company did not significantly influence the occurrence of fraud in the company. Therefore, if we do not aware about the strategies, methods, and tools for detecting cases of fraud in companies, we will never know whether the company is in good condition or not.
Abstract:Urine alcohol testing plays a vital role in detecting alcohol consumption for clinical and forensic purposes, yet its results may be influenced by pre-analytical factors such as the delay between sample collection and laboratory…
boratory analysis. This study aimed to evaluate the effect of delay time before urine examination on alcohol concentration. An experimental One-Shot Case Study design was conducted involving 44 participants in Denpasar who had consumed alcohol. Alcohol concentration was measured immediately, after a 2-hour delay, and after a 4-hour delay using the Alcohol Urine Rapid Test Dipstick Allchek, and the data were analyzed using the Kruskal-Wallis test. The findings showed that average urine alcohol levels increased numerically after a 2- and 4-hour delay compared to immediate testing; however, this change was not statistically significant (p=0.131). These results confirm that delaying urine alcohol examination up to 4 hours does not significantly alter detectable alcohol concentrations, although prompt testing is still recommended to ensure result accuracy and minimize the risk of false positives. This study provides important insights for the development of standard operating procedures regarding urine alcohol analysis in laboratory practice.
Abstract:Abstract: The development of network infrastructure in higher education environments demands a monitoring system capable of detecting disruptions quickly and accurately. Royal University does not yet have an integrated and…
nd real-time network monitoring system, so network administrators often discover disruptions after receiving reports from users. This condition results in slow response to disruption handling and suboptimal network performance. This study aims to implement The Dude as a network monitoring system to support the optimization of Royal University's network infrastructure performance. The research method used is a qualitative approach with the stages of problem identification, literature study, system analysis, system design, implementation, and system testing. The monitoring system is implemented with The Dude Server architecture running on MikroTik CHR, while The Dude Client is used by the administrator via a laptop. The results show that the system is capable of performing network discovery, monitoring device status in real-time, displaying network topology visualization, recording monitoring history, and providing notifications when disruptions occur. System testing proves that all monitoring functions run according to the analyzed requirements. Thus, the implementation of The Dude is proven effective in increasing the speed of disruption detection, troubleshooting efficiency, and optimizing the network performance of Royal University.
Keywords: mikrotik; network monitoring; network discovery; network optimization; the dude
Abstrak: Perkembangan infrastruktur jaringan di lingkungan perguruan tinggi menuntut adanya sistem pemantauan yang mampu mendeteksi gangguan secara cepat dan akurat. Universitas Royal belum memiliki sistem monitoring jaringan yang terintegrasi dan real-time, sehingga administrator jaringan sering mengetahui gangguan setelah menerima laporan dari pengguna. Kondisi ini berdampak pada lambatnya respons penanganan gangguan serta kurang optimalnya kinerja jaringan. Penelitian ini bertujuan untuk mengimplementasikan The Dude sebagai sistem monitoring jaringan guna mendukung optimalisasi kinerja infrastruktur jaringan Universitas Royal. Metode penelitian yang digunakan adalah pendekatan kualitatif dengan tahapan identifikasi masalah, studi literatur, analisis sistem, perancangan sistem, implementasi, dan pengujian sistem. Sistem monitoring diimplementasikan dengan arsitektur The Dude Server yang berjalan pada MikroTik CHR, sedangkan The Dude Client digunakan oleh administrator melalui laptop. Hasil penelitian menunjukkan bahwa sistem mampu melakukan network discovery, memantau status perangkat secara real-time, menampilkan visualisasi topologi jaringan, mencatat histori monitoring, serta memberikan notifikasi ketika terjadi gangguan. Pengujian sistem membuktikan bahwa seluruh fungsi monitoring berjalan sesuai dengan kebutuhan yang telah dianalisis. Dengan demikian, implementasi The Dude terbukti efektif dalam meningkatkan kecepatan deteksi gangguan, efisiensi troubleshooting, dan optimalisasi kinerja jaringan Universitas Royal.
Kata kunci: mikrotik; monitoring jaringan; network discovery; optimalisasi jaringan; the dude
Abstract:Abstract: Hospitals, as healthcare facilities, have a high level of visitor mobility, particularly in inpatient wards. Therefore, visitor control is necessary to maintain patient comfort, safety, and service quality. Manual…
ual visitor monitoring is considered ineffective and prone to errors. Therefore, this study aims to design and implement an artificial intelligence-based visitor monitoring system for hospital inpatient wards using computer vision technology. The developed system utilizes the YOLOv8 model as an object detection algorithm to automatically detect and count visitors through a camera. Visitor information is displayed through a desktop-based monitoring interface and is equipped with warning notifications via the Telegram application and an automatic alarm if the number of visitors exceeds the limit set by hospital policy. Test results show that the system is capable of performing well in detecting and counting visitors in real time, as well as sending information and warnings responsively. Thus, this system is considered effective as a technology-based hospital management support solution in controlling inpatient ward density and making decisions more quickly and accurately.
Keywords: hospital; inpatient ward; computer vision; yolov8; visitor monitoring
Abstrak: Rumah sakit sebagai fasilitas pelayanan kesehatan memiliki tingkat mobilitas pengunjung yang tinggi, khususnya pada ruang rawat inap, sehingga diperlukan pengendalian jumlah pengunjung untuk menjaga kenyamanan, keselamatan pasien, dan kualitas pelayanan. Pemantauan jumlah pengunjung secara manual dinilai kurang efektif dan rentan terhadap kesalahan. Oleh karena itu, penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem pemantauan jumlah pengunjung ruang rawat inap rumah sakit berbasis kecerdasan buatan menggunakan teknologi computer vision. Sistem yang dikembangkan memanfaatkan model YOLOv8 sebagai algoritma object detection untuk mendeteksi dan menghitung jumlah pengunjung secara otomatis melalui kamera. Informasi jumlah pengunjung ditampilkan melalui antarmuka pemantauan berbasis desktop dan dilengkapi dengan notifikasi peringatan melalui aplikasi Telegram serta alarm otomatis apabila jumlah pengunjung melebihi batas yang ditetapkan sesuai kebijakan rumah sakit. Hasil pengujian menunjukkan bahwa sistem mampu bekerja dengan baik dalam mendeteksi dan menghitung jumlah pengunjung secara real-time, serta mengirimkan informasi dan peringatan secara responsif. Dengan demikian, sistem ini dinilai efektif sebagai solusi pendukung manajemen rumah sakit berbasis teknologi dalam pengendalian kepadatan ruang rawat inap dan pengambilan keputusan yang lebih cepat dan akurat.
Kata kunci: rumah sakit; ruang rawat inap; computer vision; yolov8; monitoring pengunjung
Abstract:Abstract: In this study, an analysis of the use of the Naive Bayes algorithm for sentiment analysis of reviews from Shopee app users on the Google Play Store was conducted, with classification divided into three categories:…
es: positive, negative, and neutral. To improve data quality, a preprocessing process was carried out with stages of cleaning, case folding, normalization, stop word removal, stemming, and tokenizing. Next, the text is formatted using the TF-IDF method to facilitate classification. For this data, the Naive Bayes model is used, which has an accuracy rate of 87% in detecting sentiment. Positive and negative categories can be easily identified compared to neutral sentiments due to the smaller amount of neutral data. Overall, the Naive Bayes algorithm successfully analyzed user sentiments well. The research can be developed with other algorithm methods, such as SVM, K-NN, or Decision Tree, in order to compare the performance of various algorithms.
Keywords: sentiment analysis; naive bayes; user reviews; e-commerce; shopee
Abstrak: Dalam penelitian ini dilakukan analisis penggunaan algoritma Naive Bayes untuk analisis sentimen review dari pengguna aplikasi Shopee di Google Play Store, klasifikasi dibagai menjadi 3 kategori yaitu positif, negatif, dan netral. Untuk meningkatkan kualitas data, dilakukam proses preprocessing dengan tahap cleanimg, case folding, normalisasi, stopword removal, stemming, dan tekonezing. Selanjutnya, teks diformat menggunakan metode TF-IDF untuk memudahkan klasifikasi. Untuk data ini, model Naive Bayes digunakan, yang memiliki tingkat akurasi 87% dalam mendeteksi sentimen. Kategori positif dan negatif dapat dengan mudah diidentifikasi dibadingkan sentiemen netral karena jumlah data netral yang lebih sedikit. Secara keseluruhan, algoritma Naive Bayes berhasil menganalisis perasaan pengguna dengan baik. Penelitian dapat dikembangkan dengan algoritma metode lain, seperti SVM, K-NN, atau Decision Tree, guna membandingkan kinerja berbagai algoritma.
Kata kunci: analisis sentiment; naive bayes; ulasan pengguna; e-commerce; shopee
Abstract:Abstract: This research focuses on the analysis and design of a cattle disease detection system using the Forward Chaining technique. This system aims to help farmers identify various diseases in cattle quickly and accurately,…
ately, which can ultimately improve livestock health and livestock productivity. In developing this system, the Forward Chaining technique is used as the main inference method. This method was chosen because of its ability to produce conclusions based on available facts in stages, so it is very suitable for expert system applications that require repeated and complex decision-making processes. This research begins with a system requirements analysis that includes identification of common types of cattle diseases, associated symptoms, as well as the knowledge and rules required for the diagnosis process. Next, system design is carried out which includes creating a knowledge base, inference engine, and user interface. The result of this research is a prototype expert system for diagnosing cattle diseases which has been tested and shows satisfactory performance in detecting various cattle diseases based on the symptoms entered. With this system, it is hoped that farmers can more quickly take appropriate action against diseases that attack their livestock, so that they can minimize losses and increase the efficiency of livestock businesses.
Keywords: analysis; expert system; forward chaining; cattle disease; website.
Abstrak: Penelitian ini berfokus pada analisis dan perancangan sistem deteksi penyakit sapi menggunakan teknik Forward Chaining. Sistem ini bertujuan untuk membantu peternak dalam mengidentifikasi berbagai penyakit pada sapi secara cepat dan akurat, yang pada akhirnya dapat meningkatkan kesehatan ternak dan produktivitas peternakan. Dalam pengembangan sistem ini, teknik Forward Chaining digunakan sebagai metode inferensi utama. Metode ini dipilih karena kemampuannya dalam menghasilkan kesimpulan berdasarkan fakta-fakta yang tersedia secara bertahap, sehingga sangat cocok untuk aplikasi sistem pakar yang memerlukan proses pengambilan keputusan berulang dan kompleks. Penelitian ini dimulai dengan analisis kebutuhan sistem yang mencakup identifikasi jenis-jenis penyakit sapi yang umum, gejala-gejala yang terkait, serta pengetahuan dan aturan yang diperlukan untuk proses deteksi. Selanjutnya, dilakukan perancangan sistem yang mencakup pembuatan basis pengetahuan, mesin inferensi, dan antarmuka pengguna. Hasil dari penelitian ini adalah sebuah prototipe sistem pakar deteksi penyakit sapi yang telah diuji dan menunjukkan kinerja yang memuaskan dalam mendeteksi berbagai penyakit sapi berdasarkan gejala-gejala yang dimasukkan. Dengan sistem ini, diharapkan peternak dapat lebih cepat dalam mengambil tindakan yang tepat terhadap penyakit yang menyerang ternaknya, sehingga dapat meminimalisir kerugian dan meningkatkan efisiensi usaha peternakan.
Kata kunci: analisis; sistem pakar; forward chaining; penyakit sapi; website
Abstract:Abstract: The advancement of digital technology has made it easier to create, process, and distribute files—using 317 files from the dataset https://www.kaggle.com/datasets/axon data/selfie-and-official-id-photo-dataset-18k…
t-18k images?select=metadata_image.csv has also introduced new challenges, such as the increasing practice of digital file manipulation that is difficult to detect visually. Therefore, an intelligent digital forensics system that can automatically and accurately detect file authenticity is required. This study aims to develop an intelligent digital forensics system for detecting file manipulation by leveraging metadata analysis and the Random Forest classification method. The methods used include extracting metadata from digital files—such as time information, device details, and processing history—followed by analysis to identify patterns of inconsistency that indicate manipulation. This data is then used as features in the classification process using the Random Forest algorithm to distinguish between original and manipulated files. The results of this study are expected to show that the use of metadata analysis combined with the Random Forest algorithm can improve accuracy in detecting digital file manipulation compared to conventional methods. The resulting system is expected to provide an effective, efficient, and integrated solution to support digital forensic investigations, Based on the test results, the system demonstrated good performance with an accuracy rate of 94%.
Keywords: Digital Forensics;File Manipulation;Metadata Analysis;Random Forest;Classification;Machine Learning
Abstrak:Perkembangan teknologi digital telah meningkatkan kemudahan dalam pembuatan, pengolahan,dan distribusi file sebanyak 317 file, sumber datasets https:// www.kaggle.com/datasets/axondata/selfie-and-official-id-photo-dataset-18k-images?select =metadata_image.csv, namun juga menimbulkan tantangan baru berupa meningkatnya praktik manipulasi file digital yang sulit dideteksi secara kasat mata. Oleh karena itu, diperlukan suatu sistem forensik digital yang cerdas dan mampu mendeteksi keaslian file secara otomatis dan akurat. Penelitian ini bertujuan untuk mengembangkan sistem forensik digital cerdas untuk deteksi manipulasi file dengan memanfaatkan analisis metadata dan metode klasifikasi Random Forest. Metode yang digunakan meliputi proses ekstraksi metadata dari file digital, seperti informasi waktu, perangkat, dan riwayat pengolahan, kemudian dilakukan analisis untuk menemukan pola ketidaksesuaian yang mengindikasikan adanya manipulasi. Selanjutnya, data tersebut digunakan sebagai fitur dalam proses klasifikasi menggunakan algoritma Random Forest untuk membedakan antara file asli dan file yang telah dimanipulasi. Hasil dari penelitian ini diharapkan menunjukkan bahwa penggunaan analisis metadata yang dikombinasikan dengan algoritma Random Forest mampu meningkatkan akurasi dalam mendeteksi manipulasi file digital dibandingkan metode konvensional. Sistem yang dihasilkan dapat memberikan solusi yang efektif, efisien, dan terintegrasi dalam mendukung proses investigasi forensik digital, Berdasarkan hasil pengujian, sistem menunjukkan performa yang baik dengan tingkat akurasi sebesar 94%.
Kata Kunci: Forensik Digital, Manipulasi File, Metadata, Random Forest, Klasifikasi, Machine Learning.
Abstract:Abstract: The development of information and communication technology has driven digital transformation in various sectors, including agriculture. One of the technologies widely applied is the Internet of Things (IoT), which…
hich enables devices to be interconnected through the internet to perform monitoring and data exchange in real time. In hydroponic cultivation, water quality stability is a crucial factor that affects plant growth. The main parameters that need to be monitored include water acidity level (pH), water temperature, and dissolved nutrient concentration measured using Total Dissolved Solids (TDS). However, water quality monitoring is still commonly conducted manually, making it less efficient and potentially causing delays in detecting changes in water conditions. This study aims to design an IoT-based water quality monitoring system for hydroponic cultivation using an ESP32 microcontroller integrated with pH, temperature, and TDS sensors. The collected data are sent to a server and displayed on a web dashboard in real time, equipped with automatic notification features. The proposed system is expected to improve monitoring efficiency and increase the productivity of hydroponic cultivation
Keywords: esp32; hydroponics; internet of things; real-time monitoring; water quality.
Abstrak: Perkembangan teknologi informasi dan komunikasi mendorong transformasi digital dalam berbagai sektor, termasuk pertanian. Salah satu teknologi yang banyak diterapkan adalah Internet of Things (IoT) yang memungkinkan perangkat saling terhubung melalui jaringan internet untuk melakukan pemantauan dan pertukaran data secara real-time. Pada budidaya hidroponik, kestabilan kualitas air menjadi faktor penting yang mempengaruhi pertumbuhan tanaman. Parameter utama yang perlu diperhatikan meliputi tingkat keasaman air (pH), suhu air, serta konsentrasi nutrisi terlarut yang diukur menggunakan Total Dissolved Solids (TDS). Namun, pemantauan kualitas air masih banyak dilakukan secara manual sehingga kurang efisien dan berpotensi menimbulkan keterlambatan dalam mendeteksi perubahan kondisi air. Penelitian ini bertujuan merancang sistem pemantauan kualitas air hidroponik berbasis IoT menggunakan mikrokontroler ESP32 yang terintegrasi dengan sensor pH, suhu, dan TDS. Data dikirim ke server dan ditampilkan pada web dashboard secara real-time serta dilengkapi notifikasi otomatis. Sistem ini diharapkan meningkatkan efisiensi pemantauan dan produktivitas budidaya hidroponik.
Kata kunci: esp32; hidroponik; internet of things; kualitas air; monitoring real-time
Abstract:Abstract: In the era of the Internet of Things (IoT), cyber threats are increasingly complex and dynamic, thus demanding an adaptive and intelligent network security system. This study proposes a Convolutional Neural Network…
work (CNN)-based Intrusion Detection System (IDS) implemented through a Federated Learning (FL) approach in a Non-Independent and Identically Distributed (Non-IID) data environment. This approach allows the model to be trained in a distributed manner across multiple IoT devices without having to collect sensitive data to a central server, thereby maintaining data privacy while increasing the efficiency of the training process. The experiment used the CIC IoT 2023 dataset, which represents various modern IoT network traffic patterns. The results show that the proposed CNN–FL model achieves an overall accuracy of 0.99, with excellent performance in detecting various types of network traffic. The model obtains a perfect recall value (1.00) for normal traffic (Benign), as well as a very high F1-score for DDoS (0.99) and DoS (0.99) attacks. Stable and consistent performance across all five federation rounds demonstrates that this approach is a reliable, efficient, and accurate solution for detecting threats in distributed and privacy-preserving IoT networks.
Keywords: cnn; federated_learning; ids; non-iid; ciciot2023
Abstrak: Dalam era Internet of Things (IoT), ancaman siber semakin kompleks dan dinamis, sehingga menuntut sistem keamanan jaringan yang adaptif dan cerdas. Penelitian ini mengusulkan Intrusion Detection System (IDS) berbasis Convolutional Neural Network (CNN) yang diterapkan melalui pendekatan Federated Learning (FL) pada lingkungan data yang bersifat Non-Independent and Identically Distributed (Non-IID). Pendekatan ini memungkinkan model dilatih secara terdistribusi di berbagai perangkat IoT tanpa harus mengumpulkan data sensitif ke server pusat, sehingga mampu menjaga privasi data sekaligus meningkatkan efisiensi proses pelatihan. Eksperimen menggunakan dataset CIC IoT 2023, yang merepresentasikan berbagai pola lalu lintas jaringan IoT modern. Hasil penelitian menunjukkan bahwa model CNN–FL yang diusulkan mencapai akurasi keseluruhan sebesar 0.99, dengan performa yang sangat baik dalam mendeteksi berbagai jenis lalu lintas jaringan. Model memperoleh nilai recall sempurna (1.00) untuk lalu lintas normal (Benign), serta nilai F1-score yang sangat tinggi untuk serangan DDoS (0.99) dan DoS (0.99). Kinerja yang stabil dan konsisten di seluruh lima putaran federasi membuktikan bahwa pendekatan ini merupakan solusi yang andal, efisien, dan akurat untuk mendeteksi ancaman pada jaringan IoT yang bersifat terdistribusi dan menjaga privasi (privacy-preserving).
Kata kunci: cnn; federated_learning; ids; non-iid; ciciot2023