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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%.
Comparing MPPT Algorithms for Improved Partial-Shaded PV Power Generations Abdullah Basalamah; Hariani Pakka; Halit Eren; Ahmed Saed Alghamdi; Andi Syarifuddin; Kusno Kamil; Salmiah; Sriwijanaka Yudi Hartono
JURNAL NASIONAL TEKNIK ELEKTRO Vol 12, No 3: November 2023
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v12n3.1134.2023

Abstract

olar energy, accepted as an alternative energy source, is attracting commercial interest and scholars and researchers for improving efficiency and lowering the losses within the system. One of these significant losses is due to partial and complex shading. This study concentrates on reducing losses to enhance the efficiency of solar systems. Maximum Power Point Tracking (MPTT) uses several alternative algorithms for efficient operations. We have selected four algorithms supporting MPPT, namely P&O, PSO, Adaptive cuckoo, and Dragonfly. These algorithms are applied on photovoltaic (PV) systems in four different scenarios: uniform irradiance, partial shading, complex partial shading, and multiple local maximum power points. According to this study, results show that the algorithms' performance vary significantly based on these scenarios. It has been shown that PSO has the longest tracking time compared to other but tracks the maximum power best when exposed to uniform irradiance. In contrast, DFO takes the shortest tracking time and performs best in I-V curves but do not have a maximum power point at the knee. Both adaptive cuckoo and PSO perform well in tracking the global maximum power point, particularly in partial shadings. The study provides insights into the strengths and weaknesses of each algorithm in different scenarios and can guide the selection of an appropriate algorithm for a given PV system.
Perancangan Sistem Manajemen Laboratorium Terpadu untuk Mendukung Pengembangan Smart Campus A.Ulfah Tenripada Syahar; Hariani Ma’Tang Pakka; Amaliah Faradibah
JURNAL TECNOSCIENZA Vol. 8 No. 1 (2023): TECNOSCIENZA
Publisher : JURNAL TECNOSCIENZA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51158/tecnoscienza.v8i1.1081

Abstract

Laboratorium merupakan tempat di mana berbagai kegiatan akademik, seperti praktikum dan riset akan dilakukan. Laboratorium harus kita Kelola dengan baik karena sangat penting dan berpengaruh untuk keberhasilan aktivitas akademik pada program studi dan fakultas. Tujuan dari penelitian ini adalah bagaimana kita melakukan analisis dan membuat sebuah perancangabn sistem informasi manajemen laboratorium terpadu pada program studi Teknik Informatika Universitas Muslim Indonesia, dengan focus pada kegiatan praktikum. Penelitian dilaukan dalam beberapa tahap dengan menggunakan metode pengembangan berbasi obyek seperti pengumpulan data, analisis kebutuhan, dan perancangan sistem. Sistem ini dirancang dan dibuat dengan menggunakan metode waterfall dan hasil dari penelitian ini akan digubakan sebagai refrensi untuk dilakukan penegmbengan sistem selanjutnya.
Analysis of Shallow Groundwater Quality as Consumable Water in Maros Baru District Aquifer Systems, South Sulawesi, Indonesia Umar, Emi Prasetyawati; Nawir, Alfian; Pakka, Hariani M.; Jamaluddin, Jamaluddin; Tappa, Nurfadhilah Sam; Joemsittiprasert, Watcharin
International Journal of Hydrological and Environmental for Sustainability Vol 1, No 1 (2022): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.976 KB) | DOI: 10.58524/ijhes.v1i1.55

Abstract

Water is a source of necessity for humans. Water quality is very important to be considered as the source of clean water. Some people in Maros Baru District use ground wells as the source of water needs. Therefore it is important to know the physical quality and pH level of shallow wells and to know the worthiness of shallow wells in Maros Baru District with reference to Permenkes No.492/ 2010. This study examined the feasibility of water based on the physical quality and the pH level of water taken from shallow wells. The research was carried out directly in field with 14 sampling points scattered in the north, east, south, west and at the center of field. The method in observing pH value is by litmus paper and observation on the physical condition of water, well depth, well diameter and surface level of water. The result shows there were 2 locations with saltwater taste, as the location is near from the sea and rivers, while turbidity of the water influenced by condition of surround environment that was not properly maintained. From data processing, it can be concluded that as many as 5 of the 14 sampling points did not meet the eligibility standards of Permenkes No.492/2010 to be used as a source of clean water intended for drinking water.
Analisa Efesiensi Energy Menggunakan Protocol Hybrid Dalam Jaringan Ad hoc Pakka, Hariani Ma’tang; Abdurrahman, Tanridio Silviati Delfina; Salmiah, Salmiah; Suyuti, Saidah; Hartono, Sriwijanaka Yudi; Masa, Muhammad Anas
Jurnal Teknologi Elekterika Vol. 20 No. 2 (2023)
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v20i2.4653

Abstract

Jaringan Ad Hoc adalah jenis jaringan nirkabel yang terbentuk secara spontan dan sementara antara perangkat yang saling terhubung tanpa memerlukan infrastruktur tetap seperti titik akses atau router. Meskipun jaringan ad hoc menawarkan fleksibilitas, mobilitas node yang terus-menerus membuatnya rentan terhadap serangan privasi. Keamanan menjadi fokus utama dalam Internet of Things (IoT) karena kerangka kerja yang fleksibel, dan ancaman seperti modifikasi perangkat lunak dan spionase dapat muncul. Pentingnya mendeteksi intrusi dalam jaringan ad hoc menjadi krusial untuk melindungi privasi dan menyediakan perlindungan. Pengawasan invasi adalah metode terbaik untuk mengidentifikasi potensi pelanggaran lebih lanjut. Selain itu, hilangnya sumber energi dari node dapat mempengaruhi kapasitas stasiun seluler, yang memerlukan pengembangan protokol sebagai metode pilihan koneksi terbaik dan paling dapat diandalkan. Pendekatan hibrida diimplementasikan dengan menggabungkan algoritma Cat Slapped Solo Algorithm (C-SSA) untuk memilih langkah-langkah optimal dalam pengembangan rute. Penggunaan pengelompokan fuzzy dan pemilihan Cluster Head (CH) berdasarkan signifikansi kepercayaan memberikan dasar untuk perutean multi-hop nirkabel. Algoritma hibrida ini menawarkan kepercayaan dalam aspek keamanan dan efisiensi energi saat perjalanan di dalam jaringan ad hoc. Hasil eksperimen menunjukkan bahwa metode yang diusulkan menghasilkan kebutuhan energi yang rendah, durasi minimum, kecepatan pemahaman dan penyelesaian yang tinggi, persentase terbesar untuk paket data, dan tingkat deteksi yang baik. Teknik ini juga dibandingkan dengan metode yang sudah ada, termasuk yang melibatkan serangan pada model pelompatan paket selektif, menunjukkan keunggulannya dalam menghadapi tantangan keamanan dan efisiensi energi dalam konteks jaringan ad hoc.
Sistem Cross Layer pada Protokol Zigbee untuk Peningkatan Efisiensi Energi dan QoS Pakka, Hariani Ma'tang
Transient: Jurnal Ilmiah Teknik Elektro TRANSIENT, VOL. 13, NO.1, MARET 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transient.v13i1.31-36

Abstract

Jaringan Sensor Nirkabel (WSN) telah mengubah sistem operasi Internet of Things (IoT), dengan melibatkan sejumlah node sensor yang terhubung. Tantangan signifikan dalam Jaringan Sensor Nirkabel meliputi efisiensi energi, daya tahan baterai, paket drop, kualitas layanan (QoS), pengelolaan memori, mobilitas, dan kapasitas komputasi. Mobilitas menyebabkan tingginya frekuensi data drop, dapat mempengaruhi kelengkapan dan kualitas Informasi. Hal ini dapat menyebabkan peningkatan delay, media access delay, dan beban yang menghambat kinerja jaringan. Tujuan utama penelitian ini adalah untuk mengurangi paket drop, meningkatkan efisiensi energi, dan meningkatkan kinerja QoS dengan protocol Zigbee IEEE 802.15.4. Pendekatan lintas lapisan (Cross-Layer) digunakan dalam mengintegrasikan MAC dan lapisan fisik dengan desain yang mengoptimalkan semua parameter. Penelitian ini menggunakan OPNET Modeler 14.5 untuk proses simulasi. Hasil simulasi menunjukkan bahwa konsep cross-layer yang diusulkan lebih efisien daripada pendekatan tradisional dalam hal Throughput, Delay, Media Access Delay, Load, dan data Drop.
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.
ANALYSIS AN EXTRA-HIGH VOLTAGE TRANSMISSION LINE INTEGRATED WITH ZIGBEE SENSOR NETWORK Pakka, Hariani Ma'tang; Masa, M. Anas; Syarifuddin, Andi; Al Ghamdi, Ahmed Saeed; Suyuti, Saidah
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 27, No 1 Januari (2025): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.27.1.1-9

Abstract

The abundance and variety of sensor nodes in intelligent transmission lines make them unique and distinguishable. These nodes are essential components of the system, providing valuable data and information that enable efficient and effective communication. Intelligent transmission lines are characterized by their abundance and diverse range of sensor nodes. Comparing and analyzing performance metrics for star, tree, and mesh networks with the same attribute configuration includes application layer end-to-end latency and MAC layer throughput. By utilizing the ZigBee protocol in conjunction with OPNET, this is accomplished via the modeling and simulation of a wireless sensor network structure for intelligent transmission lines. An extra-high voltage transmission line that integrates multiple embedded sensing nodes was equipped with an appropriate ZigBee wireless network architecture. Following the integration of the tower's scenarios and results simulation of OPNET, the compatibility between mesh and ZigBee wireless network topology of the transmission lines, comprising several embedded sensing nodes, has been confirmed.
Design and Implementation of Distributed Parallel Architecture for IoT-Based Smart Home Network Traffic Optimization Pakka, Hariani Ma’tang; Azis, Andi Adillah Firstania; Husain, Fadel Muhammad; Putra, Irfan Pratama; Abdurrahman, Tanridio Silviati Delfina; Suyuti, Saidah
Jurnal Teknologi Elekterika Vol. 22 No. 1 (2025)
Publisher : Jurusan Teknik Elektro Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v22i1.5476

Abstract

The increasing implementation of Internet of Things (IoT) in 5G technology and cellular communications faces significant challenges regarding data traffic load and network congestion, particularly in conventional smart home systems. This research proposes and implements a distributed parallel smart home architecture as a solution for optimizing data traffic management and enhancing system reliability. The developed architecture adopts a three-layer structure: a cloud layer as the parent node, a route layer based on ESP8266 as distributed nodes, and a leaf layer consisting of sensors and actuators. Implementation was conducted through a prototype model at the UMI Electrical Engineering Laboratory with comprehensive system performance testing. Results demonstrate a 47% reduction in traffic load compared to conventional centralized systems, achieving 99.7% reliability with a 2.3-second recovery time. The system maintains bandwidth utilization below 60% and demonstrates scaling capability up to 200% without performance degradation. Under normal conditions, the system achieves an average traffic rate of 0.93 Kbits with a 45ms response time, while in emergency mode, it handles peak traffic up to 0.94 Kbits with a 32ms response time. This research contributes significantly to developing more efficient and scalable smart home architectures while providing a framework for implementing parallel distributed systems in broader IoT applications.
Smart Clove Oil Distillation System using IoT and Ultrasonic Sensors As'ad, Ihwana; Rahmatullah, Andi Muhammad; Abdullah, Syahrul Mubarak; Fahmi, Fahmi; Pakka, Hariani Ma'tang; Andiyan, Andiyan
SISTEMASI Vol 14, No 5 (2025): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v14i5.5232

Abstract

Traditional clove essential oil distillation remains inefficient due to manual labor dependency, imprecise oil-water separation, and inconsistent product quality. Addressing these limitations, this study aims to design and develop a smart, Internet of Things (IoT)-based system named AquaClove to automate and optimize the distillation process. The system integrates an ESP32 microcontroller, ultrasonic sensors, and solenoid valves, enabling precise fluid level detection and automated oil-water separation. Using the Arduino IoT Cloud, the system supports real-time monitoring and remote control, enhancing operational transparency and scalability. results indicate that the system achieved a 32% reduction in total distillation time (from 4.2 to 2.9 hours), 66.7% reduction in labor requirements (from 3 to 1 personnel), and 66.7% reduction in oil loss per 10-liter batch (from 0.6 L to 0.2 L). The ultrasonic sensors consistently detected liquid levels with an average measurement deviation of less than ±2 mm, while solenoid valves responded within 0.8 seconds of command input. These outcomes demonstrate significant improvements in process efficiency, separation precision, and system responsiveness. Furthermore, the modular container design promotes gravity-assisted separation, enhancing energy efficiency and reducing mechanical complexity. The remote monitoring feature allows users to access real-time data on fluid levels and system status, ensuring reliable operation with minimal manual supervision. AquaClove thus demonstrates how integrating ultrasonic sensing and IoT technologies can modernize traditional agricultural processes. This study contributes a scalable and sustainable solution to the essential oil industry, particularly in small- and medium-scale clove oil production.