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The growing interest in learning the Japanese language in Indonesia, driven by popular culture such as anime, creates a need to understand the effectiveness of different learning media. The non-uniform effectiveness of media for each individual poses a major challenge. Therefore, this study aims to analyze the effectiveness of both anime and textbooks by segmenting learner profiles and identifying key determinants of success using an artificial intelligence approach. This research employed a quantitative method through a questionnaire survey of 120 respondents. The data were analyzed in two stages: the K-Means Clustering algorithm was used to group respondents into learner profiles, and the Decision Tree algorithm was used to identify the most significant factors that differentiate these profiles. The analysis successfully identified three distinct learner profiles: "Intensive & Adaptive Learner," "Flexible Learner," and "Passive Learner." The decision tree revealed that the perception of textbook effectiveness and the frequency of anime use are the strongest predictors in determining a learner's profile, more so than theoretical learning style preferences. It is concluded that media effectiveness is highly dependent on the learner's behavioral and perceptual profile, which underscores the importance of a personalized approach in language education technology.

Since 2022, the application of the Internet of Things (IoT) in the healthcare sector has grown significantly, marked by the increasing adoption of wearable technology, artificial intelligence (AI), machine learning (ML), and blockchain integration. Research highlights India and China as leading contributors in this domain. IoT enables real-time monitoring of chronic diseases, tracking of patient vital signs, and detection of health protocol compliance. Integrated systems such as Monit4Healthy and RADAR-IoT support personalized medical recommendations and cross-platform interoperability. However, key challenges persist, including patient data privacy and security, system interoperability issues, data fragmentation, and barriers to user acceptance due to cost, digital literacy, and device comfort. Proposed solutions include blockchain for secure data sharing, adaptive congestion control for network performance, and user training to improve technology adoption. Therefore, successful IoT deployment in healthcare requires a comprehensive approach that addresses technological, social, ethical, and sustainability aspects to achieve an effective and inclusive transformation of health services.

Current advances in information technology have encouraged universities to utilize student academic data as a basis for decision-making, one of which is predicting academic achievement. This study aims to apply the C4.5 algorithm to develop a system for predicting student academic success in the Islamic Religious Education Study Program. This method was chosen because it produces a decision tree model that is easy to understand and has a high level of accuracy. The data used comes from student achievement indexes from semesters 1 to 5. The research results showed that the prediction system achieved 99.62% accuracy and achieved high recall precision across each class category. This demonstrates the effectiveness of the C4.5 algorithm in predicting student academic achievement and has the potential to serve as a valuable tool for decision-makers in higher education.

Behind the success of the Free Nutritious Meal Program (MBG), there are several problems related to the health factors of the program targets, namely, there are several cases of allergies that occur in schools, inadequate understanding of allergen management owned by food processing vendors, and the high cost of laboratory tests and the process that takes a long time. So, to overcome these problems, an application is proposed that can help detect allergens in food products using data mining and machine learning approaches. SVM and AdaBoost algorithms each have advantages that can be used to help build an optimal allergen detection model. This research uses a cross-validation model validation method with a value of K = 10 to help improve the performance of the model built. In this study, from the entire fold, an average accuracy value of 98.74% was obtained. To evaluate the model built, this research has also conducted several new data inputs, and in each new data input, the accuracy value is obtained above 99%. This indicates that the model built, namely the combination of SVM and AdaBoost algorithms with the cross-validation model validation method, produces high accuracy, so this model can greatly assist the allergen detection process in food products.

This research examines the application of the Elliptic Curve Digital Signature Algorithm (ECDSA) in a blockchain system as a security solution for digital payment systems in Indonesia. Using a descriptive-qualitative approach based on literature review and conceptual simulations using Python, this study discusses the working principles of ECDSA, its advantages over other digital signature algorithms, and the challenges of its adoption in Indonesia. The results show that ECDSA provides high cryptographic efficiency, maintains transaction authenticity and integrity, and supports a transparent decentralized system. The academic simulations include not only KYC processes, top-ups, transactions, validation by validators, and block recording, but also demonstrates the formation of an interconnected multi-level blockchain and tests scenarios for rejecting manipulated or invalid transactions. The contribution of this research lies not only in the theoretical review but also in the implementation illustrations that can be used as a basis for education and the initial development of blockchain-based digital payment systems. The research results show that ECDSA is capable of providing a high level of efficiency in the encryption and transaction verification process, maintaining data integrity and authenticity, and supporting a decentralized and transparent system. The academic simulations included the KYC process, wallet creation using ECDSA keys, balance top-ups through bank integration, transaction creation and validation, and block recording in the blockchain. Specifically, the simulations successfully demonstrated how new blocks are added to the chain by referencing the previous block's hash, as well as how transactions with corrupted signatures, manipulated amounts, or insufficient balances are automatically rejected by the validator consensus mechanism, maintaining system integrity. This research contributes not only theoretically, but also through conceptual representations that can be used as an educational foundation and for the initial development of blockchain-based digital payment systems in Indonesia.

CV KIA is a shop engaged in the field of computer sales and services, coming directly to make transactions and provide computer service information services. So there are obstacles that are quite time consuming and transportation costs for customers to find out information on goods, stock of goods, and the process of purchasing goods because customers have to come directly to the store. Product information on CV Kia cannot be updated in real time so that there is a delay in calculating stock of goods. The method used in this study is the prototype development method and is designed using UML. This system uses two programming languages, namely PHP. Implementation using the Xampp application, and MySQL. The results of this study are the design and creation of a web-based sales information system. The system that is built will also later facilitate the sales transaction process which can later reduce the level of competition with the outside market. This system displays information about product sales, and can carry out the sales transaction process so that customers do not need to come to the store to get information and make product purchases. The results of testing that has been carried out involving 10 Respondents that the conclusion of the quality of the feasibility of the software produced has a percentage of success with an average total of 100%.  Keywords: Sales, Prototype, PHP, Information Systems, Sublime Text

Web security is an important aspect in maintaining data integrity and confidentiality in the digital age, where cyber threats are increasingly complex and difficult to detect. This research was conducted because there are still many web systems that are vulnerable to attacks due to weak early detection of security gaps. For this reason, this study implements a combination of Nmap and Metasploit Framework as the main tools in proactively detecting and testing system vulnerabilities. The research method was carried out in three stages, namely data collection by scanning the network using Nmap to identify open ports and services, selecting the appropriate testing tools, and controlled exploitation using Metasploit on the Metasploitable2 test system. The results of the study show that Nmap is capable of mapping the attack surface in detail, while Metasploit can validate the scan results through exploitation of vulnerable services such as vsftpd 2.3.4, which successfully provided root access to the target system. The combination of these two tools has proven to be effective in conducting systematic, fast, and accurate early detection of attacks, so that it can be used as a preventive measure to improve web security from potential cyber threats.

Yayasan Misbahunnur adalah lembaga pendidikan yang terdapat di Kota Cimahi, yang mengelola 4 bidang, yakni madrasah tsanawiyah, madrasah aliyah, madrasah qur’aniyah, dan majelis ta’lim. Dalam kegiatan operasionalnya, didapati masalah yang berkaitan dengan sistem yang digunakan seperti informasi mengenai aset tidak lengkap, catatan aset tidak sesuai dengan kondisi eksisting aset, sistem tidak terhubung dengan jaringan, serta layanan yang diberikan sistem tidak dapat memenuhi kebutuhan pengguna, sehingga sehingga diperlukan evaluasi pada kinerja sistem menggunakan model Information Systems Success Measurement. Tujuan studi kasus ini adalah untuk mengevaluasi kinerja sistem informasi inventarisasi aset. Metode yang digunakan dalam penelitian ini adalah metode penelitian deskriptif dengan menggunakan pendekatan kualitatif. Teknik pengumpulan data yang digunakan dalam penelitian studi kasus ini yakni wawancara, observasi dan studi dokumentasi. Teknik Analisis data yang digunakan yakni teknik deskriptif dengan reduksi data, penyajian data dan pembuatan kesimpulan. Hasil penelitian ini menunjukkan bahwa sistem informasi yang digunakan tidak fleksibel dan tidak terintegrasi, informasi yang dihasilkan sistem tidak relevan, tidak akurat, tidak berlaku, sistem belum memiliki menu yang lengkap, membutuhkan durasi yang lama untuk menampilkan informasi, kepuasan pengguna rendah dan manfaat yang dirasakan belum optimal. Berdasarkan hasil tersebut, direkomendasikan untuk melakukan perancangan tracking system menggunakan teknologi RFID untuk sistem informasi inventarisasi aset berbasis web.

BPDAS Citarum-Ciliwung adalah salah satu instansi pemerintahan dibawah Kementrian Lingkungan Hidup dan Kehutanan yang memiliki tugas pokok dan fungsi menyajikan informasi mengenai perencanaan pengelolaan DAS, pengembangan kelembagaan dan kemitraan pengelolaan DAS maupun pemantauan dan evaluasi pengelolaan DAS.  Kegiatan pengelolaan DAS dilakukan melalui aplikasi SIMDAS yang dikelola oleh Seksi Evaluasi Pengelolaan DAS. Objek dalam artikel ini adalah kinerja SIMDAS terhadap kegiatan pengelolaan aset DAS di BPDAS Citarum-Ciliwung. Pada proses pengelolaan DAS terdapat permasalahan dalam penggunaan sistem yang diterapkan. SIMDAS belum terintegrasi dan masih berbasis offline sehingga tingkat fleksibilitas dan efisiensinya cukup rendah, informasi yang tersaji belum cepat dan akurat, penggunaan aplikasi sulit dimengerti oleh orang awam, dan keterbatasan pengguna dalam mengakses aplikasi, sehingga diperlukan evaluasi pada kinerja SIMDAS tersebut menggunakan Integrated Information Systems Success. Tujuan dari studi kasus ini adalah mengidentifikasi masalah kinerja SIMDAS terhadap pengelolaan aset DAS kemudian mengajukan rekomendasi rancangan alternatif solusi untuk mengatasi masalah kinerja aset SIMDAS tersebut. Metode yang digunakan dalam penelitian ini yakni metode penelitian deskriptif khususnya deskriptif ekspalatori dengan menggunakan pendekatan kualitatif dan kuantitatif. Teknik pengumpulan data yang digunakan dalam penelitian studi kasus ini yakni wawancara, observasi ilmiah, kuesioner, dan studi dokumentasi. Hasil dari studi kasus ini adalah rekomendasi perancangan SIMDAS di BPDAS Citarum-Ciliwung.