Abstract:Abstract: Heart disease is one of the leading causes of death worldwide, making early detection and accurate diagnosis crucial for reducing mortality rates and improving patient outcomes. This study aims to evaluate the…
effectiveness of four machine learning algorithms—Logistic Regression, Random Forest, Support Vector Machine (SVM), and K-Nearest Neighbors (KNN)—in predicting heart disease, with a focus on enhancing model performance using Linear Discriminant Analysis (LDA) for feature reduction. Among the models, SVM achieved the highest accuracy at 84.24%, followed by Logistic Regression at 83.70%. Although Random Forest and KNN showed lower accuracies, all models benefited from LDA's dimensionality reduction. This study suggests that SVM, combined with LDA, offers an optimal solution for early and accurate heart disease prediction in the healthcare industry.
Keywords: feature reduction; heart disease; linear discriminant analysis (LDA); machine learning; SVM
Abstrak: Penyakit jantung merupakan salah satu penyebab utama kematian di seluruh dunia, sehingga deteksi dini dan diagnosis yang akurat sangat penting untuk menurunkan angka kematian dan meningkatkan hasil pengobatan pasien. Penelitian ini bertujuan untuk mengevaluasi efektivitas empat algoritma pembelajaran mesin—Regresi Logistik, Random Forest, Support Vector Machine (SVM), dan K-Nearest Neighbors (KNN)—dalam memprediksi penyakit jantung, dengan fokus pada peningkatan kinerja model menggunakan Analisis Diskriminan Linear (LDA) untuk reduksi fitur. Di antara model yang diuji, SVM mencapai akurasi tertinggi sebesar 84,24%, diikuti oleh Regresi Logistik dengan 83,70%. Meskipun Random Forest dan KNN menunjukkan akurasi yang lebih rendah, semua model memperoleh manfaat dari reduksi dimensi yang diberikan oleh LDA. Studi ini menunjukkan bahwa SVM yang dikombinasikan dengan LDA merupakan solusi optimal untuk prediksi penyakit jantung secara dini dan akurat dalam industri kesehatan.
Kata kunci: linear discriminant analysis (LDA); machine learning; penyakit jantung; reduksi fitur; SVM.
Abstract:Abstract: The development of AI assistants such as Gemini and ChatGPT can significantly assist in daily human tasks. In the field of Sentiment Analysis, AI assistants can be utilized as an automated labeling alternative…
to provide positive, negative, or neutral sentiments within a dataset. This research aims to enhance the performance of AI assistants in automated labeling processes by employing the Feature Selection algorithm, specifically Forward Selection. The methodology involves utilizing the Naïve Bayes and K-NN algorithms, and subsequently improving accuracy through the Feature Selection algorithm. The evaluation is conducted using K-Fold Cross Validation. Research findings indicate an improvement in the accuracy of the best model, which is ChatGPT, when using the Naïve Bayes algorithm and Shuffled Sampling technique. The initial accuracy of 79.09% increased to 87.18% after Feature Selection was applied. This demonstrates the effectiveness of Feature Selection, particularly Forward Selection, in enhancing the accuracy performance of the model.
Keywords: ai; assistant; chat gpt; feature selection; gemini.
Abstrak: Pekembangan Asisten AI seperti Gemini dan Chat GPT dapat membantu pekerjaan manusia sehari-hari. Dalam bidang Analisis Sentimen, Asisten AI dapat digunakan sebagai alternatif pelabelan otomatis untuk memberikan sentimen positif, negatif atau netral dalam suatu dataset. Penlitian ini bertujuan untuk meningkatkan performa yang dihasilkan oleh Asisten AI dalam proses pelabelan otomatis menggunakan Algortima Feature Selection yaitu Forward Selection. Metode yang digunakan adalah dengan menggunakan Algoritma Naïve Bayes dan K-NN kemudian hasil akurasi akan ditingkatkan menggunkan Algoritma Feature Selection. Evaluasi yang digunakan adalah K-Fold Cross Validation. Hasil penelitian menunjukkan peningkatan akurasi model terbaik berada pada Chat GPT dengan menggunakan Algoritma Naïve Bayes dan Teknik Shuffled Sampling, dari nilai akurasi awal sebesar 79.09%, setelah ditingkatkan menggunakan Feature Selection, maka nilai akurasinya meningkat menjadi 87.18%. Hal ini membuktikan peran Feature Selection, dimana yang digunakan adalah Forward Selection dalam meningkatkan akurasi ternyata memang efektif dalam meningkatkan performa akurasi model.
Kata kunci: ai; assisten; chat gpt; feature selection; gemini
Abstract:Abstract: The design of Smart Village Enterprise Architecture for village government systems serves to support sustainability in facilitating the creation of Good Governance in a Village Government. One significant role…
in achieving Good Governance in a village is Education. Education plays a crucial role in enhancing and developing Good Governance and the SDGs values of a village. The conducted research focuses on the design of Enterprise Architecture of the Smart Village concept, with a focus on Village Services' dimension that specifically targets Education Services in a village in the Special Region of Yogyakarta. The research method utilized the TOGAF ADM 9.2 framework. The focus domain in this study includes the preliminary phase, architecture vision, business architecture, data architecture, application architecture, technology architecture, opportunities and solutions, and migration planning for the Education service in the Pagerharjo Village Government. The research result is an Enterprise Architecture blueprint as a solution to the issues that occur in the Education service in the Pagerharjo Village Government, along with an IT Roadmap as a reference for the village government in project development. It is hoped that the recommendations provided can enhance the Education services offered by the Pagerharjo village, thereby aiding the Pagerharjo Village Government in improving its score for the fourth SDGs, Quality Education.
Keywords: Enterprise Architecture, Smart Village, SDGs, TOGAF ADM 9.2.
Abstrak: Perancangan Enterprise Architecture Smart Village pada sistem pemerintahan Desa befungsi mendukung sustainability dalam membantu terciptanya Good Governance di suatu Pemerintahan Desa. Salah satu peranan penting terciptanya Good Governance di suatu Desa adalah Pendidikan. Pendidikan memiliki peran penting dalam peningkatan maupun pembangunan Good Governance dan nilai SDGs Desa. Penelitian yang dilakukan berfokus pada perancangan Enterprise Architecture konsep Smart Village dimensi Village Services yang berfokus pada Education Services di Desa Daerah Istimewa Yogyakarta. Metode penelitian dilakukan dengan menggunakan framework TOGAF ADM 9.2. Fokus domain yang diambil dalam penelitian ini mencakup fase preliminary phase, architecture vision, arsitektur bisnis, arsitektur data, arsitektur aplikasi, arsitektur teknologi, opportunities and solutions, dan migration planning pada layanan Pendidikan di Pemerintahan Desa Pagerharjo. Hasil dari penelitian yang dilakukan berupa blueprint Enterprise Architecture sebagai solusi dari permasalahan yang terjadi pada layanan Pendidikan di Pemerintahan Desa Pagerharjo serta IT Roadmap sebagai acuan Pemerintah Desa dalam melakukan pengembangan proyek. Diharapkan, rekomendasi yang diberikan dapat meningkatkan layanan Pendidikan yang disediakan oleh Desa Pagerharjo, sehingga mampu membantu Pemerintah Desa Pagerharjo meningkatkan score nilai SDGs ke-empat, Pendidikan yang Berkualitas.
Kata kunci: Enterprise Architecture, Smart Village, SDGs, TOGAF ADM 9.2
Abstract:Abstract: Technology is able to digitize human work that was originally manual to become automatic and of course takes less time and better accuracy compared to results done by humans. But there are still many companies…
that have not implemented this technology. The use of the AngularJS framework in web application development has proven to be effective in enhancing the user experience and ease of development. In addition, the application of Agile methods in the application development process can provide the flexibility and adaptability needed to deal with frequent changes in requirements. This study aims to investigate the implementation of the AngularJS framework in the design of a web-based acceptance system application using the Agile method. The results of the study show that the implementation of the AngularJS framework in the design of web-based acceptance system applications provides significant benefits. In conclusion, the implementation of the AngularJS framework in the design of web-based acceptance system applications using Agile methods can improve efficiency, quality, and user experience. Using AngularJS enables the development of responsive and interactive applications, while the Agile method facilitates adaptation to changing customer needs. Therefore, the use of AngularJS with an Agile approach should be carefully considered by organizations wishing to develop successful web-based acceptance system applications.
Keyword s: Admissions, Agile, AngularJS, Web
Abstract: Teknologi mampu mendigitalisasi pekerjaan manusia yang awalnya manual menjadi otomatis dan tentunya memakan waktu yang lebih singkat dan akurasi yang lebih baik dibandingkan dengan hasil yang dikerjakan oleh manusia. Tetapi masih banyak perusahaan perusahaan yang belum menerapkan teknologi ini. Penggunaan framework AngularJS dalam pengembangan aplikasi web telah terbukti efektif dalam meningkatkan pengalaman pengguna dan kemudahan pengembangan. Selain itu, penerapan metode Agile dalam proses pengembangan aplikasi dapat memberikan fleksibilitas dan adaptabilitas yang diperlukan untuk menghadapi perubahan persyaratan yang sering terjadi. Penelitian ini bertujuan untuk menginvestigasi implementasi framework AngularJS dalam desain aplikasi sistem penerimaan berbasis web menggunakan metode Agile. Hasil penelitian menunjukkan bahwa implementasi framework AngularJS dalam desain aplikasi sistem penerimaan berbasis web memberikan manfaat yang signifikan. Dalam kesimpulannya, implementasi framework AngularJS dalam desain aplikasi sistem penerimaan berbasis web menggunakan metode Agile dapat meningkatkan efisiensi, kualitas, dan pengalaman pengguna. Penggunaan AngularJS memungkinkan pengembangan aplikasi yang responsif dan interaktif, sementara metode Agile memfasilitasi adaptasi terhadap perubahan kebutuhan pelanggan. Oleh karena itu, penggunaan AngularJS dengan pendekatan Agile harus dipertimbangkan secara cermat oleh organisasi yang ingin mengembangkan aplikasi sistem penerimaan berbasis web yang sukses.
Keywords: Admisi, Agile, AngularJS, Web
Abstract:This research was undertaken to analyze the influence of the Wordwall application on the speaking skills of eleventh-grade students at SMAN 1 Ciruas. Consequently, Wordwalluantitative methodology and a quasi-experimental…
design involving 82 participants, organized into two equally sized groups, namely the experimental and control groups. Data collection was conducted through speaking assessments administered prior to and following the treatment. The findings showed that students who received the treatment achieved better improvement in speaking skills than those in the control group. The average score achieved by the experimental group increased from 63.90 to 83.12, whereas the control group’s mean score rose from 66.15 to 74.34. The hypothesis test results revealed a significance value below 0.05 (p < 0.001), providing evidence of a statistically significant difference between the groups. The results point to the fact that the Wordwall application was effective in enhancing students’ speaking skills.. Consequently, Wordwall can be considered an effective technology-based learning tool for promoting speaking skill development in English language learning.
Abstract:The teaching profession plays a strategic role in advancing national education, as mandated by the 1945 Constitution of the Republic of Indonesia. However, teachers frequently face challenges, including threats of physical…
al violence from students’ parents, which undermine their dignity and safety in the educational environment. This study addresses the problem of how legal frameworks provide protection for teachers and whether existing regulations adequately ensure their rights and security. The research aims to analyze the effectiveness of legal protection for teachers under the Criminal Code, Law No. 14 of 2005 on Teachers and Lecturers, Law No. 35 of 2014 on Child Protection, and Ministerial Regulations concerning teacher protection. The study employs a normative juridical method with a statute, conceptual, and case approach, relying on primary, secondary, and tertiary legal materials, analyzed through qualitative interpretation and juridical argumentation. The results indicate that although legal instruments exist, their implementation remains weak due to the absence of technical regulations, limited institutional coordination, and insufficient support systems for teachers at the school level. The study concludes that derivative regulations and integrated mechanisms are essential for ensuring effective protection. It recommends strengthening inter-agency coordination, establishing school-level protection units, and enhancing teachers’ legal literacy.
Abstract:The Indonesian capital market plays a pivotal role in mobilising long-term financing for corporations and providing investment opportunities to the public. However, persistent stock fraud cases undermine market integrity…
and investor confidence. This study aims to evaluate the effectiveness of the existing legal framework for investor protection against stock fraud, analyse its practical implementation, and recommend measures to strengthen both preventive and repressive mechanisms. Employing a normative legal research design with a qualitative approach, the study integrates statute, conceptual, and case approaches, focusing on Law No. 8 of 1995 on Capital Markets, OJK regulations, the Criminal Code, and notable cases such as PT Hanson International Tbk. The findings reveal that while the legal framework normatively aligns with the Legal Protection Theory, Justice Theory, and Legal Effectiveness Theory, substantial gaps remain between regulation and enforcement. Weak supervisory coordination, delayed intervention, lengthy judicial processes, and low investor legal literacy reduce effectiveness. Recommended reforms include adopting regtech and suptech, enhancing cross-agency data integration, implementing AI-based surveillance, establishing a specialised capital market court, and strengthening investor education. The study concludes that combining regulatory improvements, adaptive enforcement, and public legal empowerment is essential to safeguard investors, maintain market integrity, and promote sustainable economic growth.
Abstract:This study examines the influence of the Technology Acceptance Model (TAM), focusing on Perceived Ease of Use (PEOU) and Perceived Usefulness (PU), on users’ Behavioral Intention (BI) to adopt and continue using M-Din, a…
a Sharia-based mobile banking application at Bank Muamalat in West Java. Employing a quantitative survey of 100 active M-Din users, data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results show that PEOU significantly affects PU, and both PEOU and PU significantly influence BI; additionally, PU partially mediates the effect of PEOU on BI. This research contributes to the digital banking literature by reaffirming TAM constructs within an Islamic finance context and offers practical recommendations for optimizing Sharia-compliant mobile banking strategies. Implications for enhancing user interface design and promoting key features to boost adoption are discussed.
Abstract:This study examines the role of public relations (PR) ethics in enhancing PT Kereta Api Indonesia's (PT KAI) competitive advantage in the railway industry. Ethical practices in PR are vital for fostering stakeholder trust,…
t, improving customer satisfaction, and enhancing employee engagement, all of which contribute to sustainable growth and market leadership. Adopting a qualitative research design and a case study approach, the research investigates how ethical principles such as transparency, integrity, equity, respect, and responsiveness are applied within PT KAI’s operational and strategic frameworks. Data collection involved document and thematic analyses, emphasizing ethical practices’ impact on stakeholder relationships and competitive outcomes. The findings highlight that PT KAI’s ethical initiatives strengthen its reputation, promote customer loyalty, and support a positive workplace environment. Despite these successes, challenges remain, including the absence of formalized ethical guidelines and the need for ethical leadership. The study concludes that integrating PR ethics into organizational culture enhances competitive advantage and ensures long-term sustainability in a dynamic market.
Abstract:This study aims to analyze the role of fiscal decentralization in enhancing regional financial independence in Indonesia. Using a qualitative approach and literature review methodology, the research examines the role of…
fiscal decentralization in promoting regional financial autonomy in Indonesia. The analysis compares the effectiveness of fiscal decentralization policies in fostering financial independence across various regions in the country. Fiscal decentralization has demonstrated positive impacts by granting regions greater freedom to determine development priorities and explore funding sources. Regions with strong economic potential and natural resources can increase their locally generated revenue (Pendapatan Asli Daerah or PAD) to support development. However, this policy also creates disparities among regions, where wealthier regions manage their finances independently while poorer regions remain reliant on central government transfers. Moreover, limited managerial capacity in some regions hampers the policy's effectiveness. Fiscal decentralization can strengthen regional financial independence if accompanied by enhanced financial management capacity and fiscal policy adjustments.