Harmayani

RESEARCH, TEACHING, or OTHER INTERESTS

Computer Science, Human-Computer Interaction, Information Systems, Information Systems and Management

Scopus Publications

Poverty level prediction analysis based on bps data using simple moving average method
Ahmad Muhazir, Nurkarim Nehe, Mhd Ihsan Abidi, Widiarti Rista Maya, Elfitriani, and Harmayani
AIP Publishing



Ontology for Intelligent Disease Diagnosis
Muhammad Khoiruddin Harahap, Mahyuddin K. M. Nasution, Harmayani, and Nelly Astuti Hasibuan
IEEE
This research develops a comprehensive ontology to improve intelligent disease diagnosis by addressing gaps in current medical ontologies. By systematically organizing and analyzing medical data, the ontology enhances diagnostic accuracy and efficiency. The methodology includes a literature study and the development of an ontology-based on key concepts and relationships in the health domain. Results indicate that a more complete ontology supports better clinical decisions. Despite challenges in data collection and validation, the study contributes to improved medical care quality. Future research should focus on integrating machine learning and AI to enhance reasoning and prediction capabilities


Performance of LoRaWAN in Multi-Node
Puput Dani Prasetyo Adi, Khairul, Samsir Samsir, Harmayani, Firman Edi, Iwan Purnama, Muhammad Yasir, Agoestina Mappadang, Fairuz Iqbal Maulana, Gatot Suharto Abdul Fatah,et al.
IEEE
This research reviews the Performance of LoRaWAN using RF96 and simulation OMNeT++. RF96 is one of the chips used for LoRaWAncommunication; as a whole, LoRa Communication is formed from Radio Frequency communication between LoRa end-nodes and TCP/IP on the programming side of the Gateway and Application Server. This article explicitly discusses RF communication systems with many nodes or multi-nodes. This research uses OMNET++ simulation, which integrates and equalizes all components of RF96, starting from Bit-rate ability, SF, Bandwidth, CR, and other details integrated into one OMNET++ parameter. The parameters that can be calculated are RSSI, SNR, Bit-Rate Error Rate, Packet Loss, etc. This system, in detail, compares the number of end nodes communicated. The development of the results of this analysis is more of an approach to the Internet of Things; moreover, in this research, tests were conducted with 5, 10, 15, 20, 25, 50, 75, and 100 Nodes of LoRa, and analyzed in detail the output of parameters and Quality of Services from LoRaWancommunication.


Best Model and Performance of Bayesian Regularization Method for Data Prediction
Pratomo Setiaji, Bambang Widjanarko, Yuda Syahidin, Hidayatulah Himawan, Nurintan Asyiah Siregar, Harmayani, Lukman Samboteng, Nur’ Ainun Gulo, and Reni Kartikaningsih
IOP Publishing
Abstract The backpropagation algorithm has many training and activation functions that can be used to influence or maximize prediction results, all of which have their respective advantages and disadvantages. The purpose of this paper is to analyze one of the training functions of the backpropagation algorithm which can be used as a reference for use in data prediction problems in the form of models and best performance. The training function is the Bayesian Regularization method. This method is able to train the network by optimizing the Levenberg-Marquardt by updating the bias and weights. The research dataset used to analyze the data in this paper is Formal Education Participation in Indonesia 2015-2020 which consists of the School Participation Rate, the Gross Enrollment Rate, and the Pure Enrollment Rate. The 2015-2016 dataset is used as training data with a 2017 target, while the 2018-2019 dataset is the test data with a 2020 target. The models used are 2-10-1, 2-15-1, and 2-20-1. Based on the analysis and calculation process, the results of the 2-15-1 model are the best with an epoch of 217 iterations and an MSE of 0.00002945, this is because the epoch is not too large and has the smallest MSE compared to the other 2 models.


Application of Interpolation Image by using Bi-Cubic Algorithm
Dahlan Abdullah, F Fajriana, M Maryana, Lidya Rosnita, Andysah Putera Utama Siahaan, Robbi Rahim, P Harliana, H Harmayani, Zainuddin Ginting, Cut Ita Erliana,et al.
IOP Publishing
Image magnification is one of the branches in digital image processing that is often required in various applications such as in the field of medicine, multimedia, and in satellite imagery. As technology grows, more and more methods are used for image enlargement. In this study, the image enlargement process performs by using Bi-Cubic spline interpolation method, and the result of image try to compare between the original one and picture after enlargement.

RECENT SCHOLAR PUBLICATIONS

Profile Matching Method In Improving Staff Performance In Asahan University
DA Bambang Irwansyah, Harmayani
Journal of Computer Networks, Architecture and High Performance Computing 7 2025



PREDIKSI HASIL PEMILIHAN UMUM BERDASARKAN DATA MEDIA SOSIAL MENGGUNKAN TEKNIK DATA MINING NAIVE BAYES
R Rusli, H Harmayani
JOURNAL OF SCIENCE AND SOCIAL RESEARCH 8 (1), 357-362 2025



PENGGUNAAN ALGORITMA CLUSTERING K-MEANS UNTUK MENGELOMPOKKAN POLA CUACA
I Rinaldi, H Harmayani
JOURNAL OF SCIENCE AND SOCIAL RESEARCH 8 (1), 343-348 2025



PERBANDINGAN MULTI ATTRIBUTIVE IDEAL-REAL COMPARATIVE ANALYSIS DAN TECHNIQUE FOR ORDER PREFERENCE BY SIMILARITY TO IDEAL SOLUTION PENILAIAN EVALUASI KINERJA KECAMATAN
AI Arm, H Harmayani
JOURNAL OF SCIENCE AND SOCIAL RESEARCH 8 (1), 300-305 2025



PENGGUNAAN TEKNOLOGI LISTRIK SEDERHANA BOLA LAMPU UNTUK MENGETAHUI KUALITAS PUPUK ORGANIK DAN ANORGANIK DI DESA BENTENG JAYA
S Hasibuan, SS Ningsih, H Harmayani, F Wibowo, A Armaniar, C Zulia
Community Development Journal: Jurnal Pengabdian Masyarakat 6 (1), 844-847 2025



IMPLEMENTASI ALGORITMA K-NEAREST NEIGHBOR (KNN) UNTUK KLASIFIKASI PELAYANAN PUBLIK
BN Sitorus
Jurnal Kreativitas Teknologi dan Komputer 15 (11) 2024



Pelatihan Legalitas Usaha dan Sertifikat Halal Keripik Ubi di Desa Sei Bluru
H Harmayani, ES Siregar, DA Andriani, D Apdilah, NI Sinambela, ...
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal 7 (4), 613-620 2024



Ontology for Intelligent Disease Diagnosis
MK Harahap, MKM Nasution, NA Hasibuan
2024 International Conference on Electrical Engineering and Informatics 2024



MELIBATKAN GENERASI MUDA DALAM MENINGKATKAN LITERASI KEUANGAN DAN INVESTASI
ES Siregar, I Ismail, S Syahrunsyah, H Harmayani, I Juanda, M Syaman, ...
Community Development Journal: Jurnal Pengabdian Masyarakat 5 (4), 7610-7614 2024



Analisis Perancangan sistem
J Sinuraya, MS Wahyuni, HA Adwin, K Sari
Mega Press Nusantara 2024



MANFAAT JAMU BUMI PADA TANAMAN CABAI MERAH SEBAGAI PENCEGAHAN PENYAKIT TANAMAN DI DESA SEI SILAU BARAT
S Hasibuan, SS Ningsih, HBT Pane, H Harmayani, A Armaniar, F Wibowo
Community Development Journal: Jurnal Pengabdian Masyarakat 5 (4), 5934-5938 2024



Design of Safety Worker Helmets Based on the Internet of Things
T Urmila, RA Candra, DN Ilham, H Harmayani, MK Harahap
PERFECT: Journal of Smart Algorithms 1 (1), 18-22 2024



Esensi Data Mining : Teknik,Trend, dan Inovasi
Harmayani
2024



PENGENALAN DASAR HUKUM INVESTASI DAN PASAR MODAL BAGI REMAJA
ES Siregar, D Apdillah, M Husna, SH Siregar, A Fauzan, A Nasution, ...
Jurnal Kritis Studi Hukum 9 (5) 2024



Poverty level prediction analysis based on bps data using simple moving average method
A Muhazir, N Nehe, MI Abidi, WR Maya, E Elfitriani, H Harmayani
AIP Conference Proceedings 3024 (1) 2024



KETERAMPILAN DIGITAL MENGUASAI DUNIA KERJA MODERN
MK Dara Kusumawati, S.E., M.M. Ir. Hera Wasiati, M.M. Harmayani, ST, M. Kom ...
2024



Performance of LoRaWAN in Multi-Node
PDP Adi, S Samsir, F Edi, I Purnama, M Yasir, A Mappadang, FI Maulana, ...
2023 IEEE 9th Information Technology International Seminar (ITIS), 1-6 2024



The Development of The Project-Based Learning Model In Making Teaching Modules for Courses Multimedia Technology and Animation
MS Ramadhan, H Harmayani
Journal of Computer Networks, Architecture and High Performance Computing 6 2024



Reviewer Praktisi Mengajar 4
Harmayani
2024



SOSIALISASI OLAHAN JAMUR TIRAM PUTIH DI DESA SUKAJADI KECAMATAN MERANTI KABUPATEN ASAHAN
S Hasibuan, D Puspitasari, I Zahar, H Gunawan, S Fajri, A Armaniar, ...
Community Development Journal: Jurnal Pengabdian Masyarakat 4 (6), 13216-13219 2023

MOST CITED SCHOLAR PUBLICATIONS

Konsep Dasar E-Commerce
A Prasetio, M Ashoer, J Hutahaean, J Simarmata, RS Samosir, ...
Yayasan Kita Menulis 2022
Citations: 116



E-Commerce: Suatu Pengantar Bisnis Digital
H Harmayani, D Marpaung, A Hamzah, N Mulyani, J Hutahaean
Yayasan Kita Menulis 2022
Citations: 74



Bisnis online: Strategi dan peluang usaha
D Nofriansyah, C Jatiningrum, MNH Siregar, N Butarbutar, S Abadi, ...
Yayasan Kita Menulis 2022
Citations: 56



Perancangan Basis Data
SR Ningsih, AI Suryani, AAJ Sinlae, AMAK Parewe, A Halid, Y Siagian, ...
Yayasan Kita Menulis 2022
Citations: 45



Keamanan Siber: Tantangan di Era Revolusi Industri 4.0
Y Indarta, F Ranuharja, IF Ashari, J Simarmata, H Harmayani, MH Algifari, ...
Yayasan Kita Menulis 2022
Citations: 26



Aplikasi Komputer
H Harmayani, D Abdilah, M Mapilindo, O Oktopanda, J Hutahaean
Yayasan Drestanta Pelita Indonesia, 1-89 2022
Citations: 26



Pengantar Teknologi Komputer dan Informasi
J Hutahaean, M Amin, R Rismayani, MA Hamzah, A Akhriana, ...
Yayasan Kita Menulis 2022
Citations: 20



Application of interpolation image by using bi-cubic algorithm
D Abdullah, F Fajriana, M Maryana, L Rosnita, AP Utama Siahaan, ...
Journal of Physics: Conference Series 1114, 012066 2018
Citations: 19



Aplikasi pendukung keputusan dalam mengukur tingkat kepuasan pelayanan publik menggunakan metode mfep
PN Sari, W Ramdhan, AK Syahputra
Edumatic: Jurnal Pendidikan Informatika 7 (1), 59-68 2023
Citations: 13



Literasi Digital: Bijak Dalam Berekspresi Dan Bermedia Sosial
J Hutahaean, H Harmayani, D Apdilah, S Rahayu, ES Siregar
Yayasan Kita Menulis 2022
Citations: 8



Aviv, & Fatkhudin, Aslam.(2022)
Y Indarta, F Ranuharja, IF Ashari, JI Sihotang, J Simarmata, H Harmayani, ...
Keamanan Siber: Tantangan di Era Revolusi Industri 4 2022
Citations: 7



Implementasi Metode Saw Pada Sistem Pendukung Keputusan Penerima Hibah Penelitian Dan Pengabdian Kepada Masyarakat Dosen Una
H Harmayani, B Armadi
(JurTI) Jurnal Teknologi Informasi 4 (1), 139-145 2021
Citations: 6



Perbandingan Metode WP dan SAW dalam Sistem Pendukung Keputusan untuk Menentukan Tingkat Keberhasilan Guru Mengajar di Tingkat SMK
H Harmayani, RA Harahap
Jurnal Media Informatika Budidarma 6 (2), 923 2022
Citations: 5



Best Model and Performance of Bayesian Regularization Method for Data Prediction
P Setiaji, B Widjanarko, Y Syahidin, H Himawan, NA Siregar, ...
Journal of Physics: Conference Series 1933 (1), 012030 2021
Citations: 5



Analisis Perancangan sistem
J Sinuraya, MS Wahyuni, HA Adwin, K Sari
Mega Press Nusantara 2024
Citations: 4



Penerapan Metode Multi-Objective Optimization on The Basic of Ratio Analysis (MOORA) Dalam Seleksi Siswa Unggulan Sekolah
F Nugroho, H Harmayani, M Mesran, RH Mulia, EMT Situmorang, ...
Jurnal Media Informatika Budidarma 6 (4), 2287 2022
Citations: 4



Analisis Metode Multi Factor Evaluation Process pada Pemilihan Produk Perbankan yang sesuai Kebutuhan Nasabah
H Harmayani, V Dwina
J-SAKTI (Jurnal Sains Komputer Dan Informatika) 4 (2), 711-720 2021
Citations: 4



Basic Concepts of E-Commerce
A Prasetio, M Ashoer, J Hutahaean, J Simarmata, RS Samosir, ...
Our Writing Foundation 2021
Citations: 4



Performance of LoRaWAN in Multi-Node
PDP Adi, S Samsir, F Edi, I Purnama, M Yasir, A Mappadang, FI Maulana, ...
2023 IEEE 9th Information Technology International Seminar (ITIS), 1-6 2024
Citations: 3



Interaksi Manusia dan Komputer
H Harmayani, D Apdilah, F Helmiah, Y Siagian, AZ Syah
Yayasan Kita Menulis 2021
Citations: 3