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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro TRANSIENT: Jurnal Ilmiah Teknik Elektro JURNAL NASIONAL TEKNIK ELEKTRO Sistemasi: Jurnal Sistem Informasi ILKOM Jurnal Ilmiah Jurnal Tecnoscienza Jurnal Teknologi Elekterika International Journal of Hydrological and Environmental for Sustainability
Hariani M. Pakka
Universitas Muslim Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Mathematics Other

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Journal : ILKOM Jurnal Ilmiah

 1 
K-Nearest Neighbors Analysis for Public Sentiment towards Implementation of Booster Vaccines in Indonesia Ihwana As'ad; Muhammad Arfah Asis; Hariani Ma'tang Pakka; Randi Mursalim; Yusnita binti Muhamad Noor
ILKOM Jurnal Ilmiah Vol 15, No 2 (2023)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v15i2.1561.365-372

Abstract

In order to prevent the spread of COVID-19 in Indonesia, the Government of the Republic of Indonesia has been implementing a booster vaccine program since January 12th, 2022, with priority for the elderly and vulnerable groups as well as those who got the second C-19 vaccine longer than 6 months. The implementation of this program raised many pros and cons among public which were expressed either positively or negatively through social media. Therefore, sentiment analysis is needed to examine these phenomenons. This study aims to determine the positive and negative response from public by employing K-Nearest Neighbor method. A total of 2,000 commentary data were collected to be in turn classified based on positive and negative sentiments. There are 500 comments used as training data and divided equally to positive and negative class, each consists of 250 data. Using the value of K = 9, the results show a positive sentiment of 43% while a negative sentiment of 57%. Based on the validity test using 10-fold cross validation, an accuracy of 82.60% was obtained, a recall value was 82.60% with a precision of 83.89%.
Optimizing THD in Modified Multilevel Inverters with IoT-Integrated MPPT Systems for Enhanced Efficiency Syarifuddin, Andi; Pakka, Hariani Ma'tang; Eren, Halit; AlGhamdi, Ahmed Saeed; Baso, Nur Fadliah
ILKOM Jurnal Ilmiah Vol 16, No 2 (2024)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v16i2.2092.198-209

Abstract

This work proposes a new Modified Multilevel Inverter (MMLI) and provides a comprehensive comparison with Conventional Cascaded H-bridge Inverters. The MMLI features fewer switching devices compared to the conventional H-Bridge Inverter for 9-level voltages and higher. Maximum Power Point Tracking (MPPT) incorporated with a Boost converter ensures a constant output from Photovoltaic (PV) arrays, which is then fed to the inverter to achieve the desired number of voltage levels. To enhance the performance and efficiency of the system, IoT technologies were integrated for real-time monitoring and control. Smart sensors and cloud-based platforms were utilized for data collection and analysis, enabling precise control of the MPPT and inverter systems. The integration of IoT resulted in significant improvements in the system's dynamic response, energy conversion efficiency, and overall reliability. The results were validated through simulations in Simulink, with outcomes presented and compared for voltage waveform and harmonic spectrum. The integration of IoT technologies provided substantial benefits, showcasing the interdisciplinary approach of this research in reducing Total Harmonic Distortion (THD) while optimizing inverter operations.
Co-Authors A. Ulfah Tenripada Abdullah, Syahrul Mubarak Abdurrahman, Tanridio Silviati Delfina Ahmed Saeed AlGhamdi Al Ghamdi, Ahmed Saeed AlGhamdi, Ahmed Saeed Amelya Indah Pratiwi Andi Syarifuddin Andi Syarifuddin Andiyan As'ad, Ihwana Azis, Andi Adillah Firstania Eren, Halit Fahmi Fahmi Faradibah, Amaliah Halit Eren Hartono, Sriwijanaka Yudi Husain, Fadel Muhammad Ihwana As’ad Jamaluddin Jamaluddin Joemsittiprasert, Watcharin Masa, M. Anas Masa, Muhammad Anas Muhammad Arfah Asis Nawir, Alfian NUR FADLIAH BASO Prasetyawati Umar, Emi Putra, Irfan Pratama Rahmatullah, Andi Muhammad Randi Mursalim Saidah Suyuti Salmiah Salmiah Tappa, Nurfadhilah Sam Umar Umar Wisanti, Widya Yusnita binti Muhamad Noor