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Journal : JOURNAL OF APPLIED INFORMATICS AND COMPUTING

Optimasi Support Vector Machine Berbasis Particle Swarm Optimization Untuk Mendeteksi Hate Speech Pilkada Karawang Wahyuningrum Ayu; Rijal Abdulhakim; Yuyun Umaidah; Jajam Haerul Jaman
Journal of Applied Informatics and Computing Vol 5 No 2 (2021): December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v5i2.3473

Abstract

The rise of hate speech on social media can harm various parties, including the candidate for regional head of Karawang Regency in 2020, but because of the large number of comments, the sanctions given to violators are not evenly distributed. To make it easier for Bawaslu to give sanctions to violators and to provide a deterrent effect to the Karawang community so that hate speech does not occur again. Therefore, this study was conducted by classifying positive and negative comments. The methodology used is Knowledge Discovery in Database (KDD) by dividing the data into 4 scenarios. The results obtained state that the Support Vector Machine (SVM) Algorithm with scenario "2" on a linear kernel gets the highest accuracy value of "72.66%". Then the results of the 4 scenarios were optimized by Particle Swarm Optimization which got the highest accuracy value, namely the linear and polynomial kernels in the 4th scenario with 90:10 data sharing of "78.00%". Other evaluation values ​​also experienced the same increase, starting from precision, recall, and f1-score. It can be concluded that the Support Vector Machine algorithm optimized with Particle Swarm Optimization can increase the accuracy value.
Sales Analysis Using Apriori Algorithm in Data Mining Application on Food and Beverage (F&B) Transactions Marselina, Sonia; Jaman, Jajam Haerul; Kurniawan, Dwi Ely
Journal of Applied Informatics and Computing Vol. 7 No. 2 (2023): December 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v7i2.5026

Abstract

The current business landscape has compelled many companies to compete in boosting their company's revenue, particularly in the F&B sector. Existing sales transaction data has not been fully maximized in determining the business strategy of companies. Therefore, the implementation of data mining is necessary to analyze and explore available data to discover new information that is more beneficial for the company. In this study, we analyze sales transaction data using the a priori algorithm method because this algorithm efficiently handles the data mining process on a large scale with a substantial amount of data. The results of this study indicate that the formed association rules can determine patterns of product purchases that are frequently bought together. The established association rules successfully combine sales transaction data into two-item combinations, namely green tea latte and french fries, with a support value of 16% and a confidence level of 83%. These rules can be used as a reference in determining the company's business strategy.
Implementation of Identity Loss Function on Face Recognition of Low-Resolution Faces With Light CNN Architecture Mufid, Tsaqif Mu'tashim; Adam, Riza Ibnu; Jaman, Jajam Khaeru; Garno, Garno; Maulana, Iqbal
Journal of Applied Informatics and Computing Vol. 8 No. 1 (2024): July 2024
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v8i1.6274

Abstract

Face recognition in low-resolution images has seen significant advancements over the past few decades. Although extensive research has been conducted to improve accuracy in these conditions, one of the main challenges remains the difficulty in identifying unique facial features in low-resolution images, leading to high error rates in identification. The use of Deep Convolutional Neural Networks (DCNN) for low-resolution face recognition is still limited. However, employing super-resolution models like REAL-ESRGAN can enhance recognition accuracy in low-resolution images. This study utilizes the Light CNN architecture and applies the margin-based identity loss function AdaFace on low-resolution datasets. The model is trained using the Casia-WebFace dataset and evaluated using the LFW and TinyFace test datasets. Based on the evaluation results on the LFW test data, the best model is Light CNN9-AdaFace, achieving the highest accuracy of 97.78% at 128x128 resolution. For images with the lowest resolution of 16x16, an accuracy of 83.37% was achieved using super-resolution techniques. On the TinyFace test data, the use of super-resolution resulted in performance metrics with a Rank-1 accuracy of 47.26%, Rank-5 accuracy of 55.25%, Rank-10 accuracy of 58.61%, and Rank-20 accuracy of 61.90% using the Light CNN9-AdaFace architecture.
Pemetaan UMKM dalam Upaya Pengentasan Kemiskinan dan Penyerapan Tenaga Kerja Menggunakan Algoritma K-Means Kurniadewi, Herwinda; Hakim, Rijal Abdul; Jajuli, Mohamad; Jaman, Jajam Haerul
Journal of Applied Informatics and Computing Vol. 6 No. 2 (2022): December 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v6i2.4227

Abstract

Covid pandemic created an economic crisis. Increase the poverty rate by double digits in one year in Indonesia. Covid pandemic has also had an impact on Indonesia's employment conditions, such as finding it difficult to find work. Absorption of labor has a close correlation with poverty. The workforce has a significant influence on the poverty level. One of the regencies in West Java which has a high poverty rate and job seekers is increasing compared to the previous year, Purwakarta Regency. Poverty alleviation by developing MSMEs has good potential. The development of MSMEs will be able to absorb more workers and increase people's income so that it can encourage the rate of economic growth. In this study using the CRISP-DM methodology. In this study, MSMEs in Purwakarta Regency were grouped based on location, number of MSMEs, number of poor people and number of job seekers by using the k-means algorithm and mapping using python. The results of the grouping obtained 3 clusters, namely clusters as many as 6 districts, clusters as many as 8 districts and clusters as many as 3 districts. To determine the performance of the model, an evaluation of the silhouette coefficient which obtained a value of 0.45.
Pengenalan Wajah Resolusi Rendah Menggunakan Arsitektur Lightweight VarGFaceNet dengan Adaptive Margin Loss Ramadani, Daffa Tama; Adam, Riza Ibnu; Jaman, Jajam Haerul; Rozikin, Chaerur; Garno, G.
Journal of Applied Informatics and Computing Vol. 7 No. 1 (2023): July 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v7i1.5831

Abstract

Face recognition is a modern security solution that is quickly and easily integrated into most existing devices, so this system is widely applied to several domains as one of the security authorizations. Developing face recognition models using mainstream architectures (AlexNet, VGGNet, GoogleNet, ResNet, and SENet) will make it difficult to implement the models on mobile devices and embedded systems. In addition, low resolution images, such as those from CCTV surveillance cameras or drones, pose challenges for the models to recognize faces, as the images lack sufficient details for identification. Therefore, this research aims to analyze the performance of a face recognition model developed using the lightweight VarGFaceNet architecture with the adaptive margin loss AdaFace on a low-resolution image dataset. Based on the evaluation results on the LFW dataset, an accuracy of 99.08% was achieved on high-resolution data (112x112 pixels), while on the lowest synthetic low-resolution data (14x14 pixels), an accuracy of 79.87% was obtained with the assistance of the Real-ESRGAN and GFP-GAN super-resolution models. On the TinyFace dataset, without fine-tuning, a Rank-1 accuracy of 46.08% was achieved without using super-resolution models and 45.03% when utilizing super-resolution models.
Co-Authors Abdul Mufti Abdul Mufti Aditya Rizky Sanjaya Adrian Mangatar Affani Putri Riyandoro Agung Susilo Yuda Irawan Ahmad Ray Septa Firdaus Ahzka Nabbilah Tuzzahrah Alex Mulyana Almira Zahra Alpin Apriliansyah Mohsa Amelia Isnanda Ananda, Tri Darma Annabella Dian Dameria Sinambela Aprilia, Dita Aries Suharso Arif Imam Suroso Arip Solehudin Armeilia, Rida Carudin Carudin, Carudin Chaerur Rozikin Chandraditio, Ramadhan Desviana, Alyssa Devi Fitriani Maulana Dikky Setiyanto Dwi Ely Kurniawan Fadhillah, Octavia Salwa Dzaky Fadilah, Frido Firman Fajar Mulyana Fawzy Muhammad Bayfurqon Fazrin Meila Azzahra Sofyan Fifa Latifah, Umi Fiqri Faturrian, Muhammad Fitria Septianingrum Fitriana Destiawati Fitriana Destiawati Fitrianida Lutfiajati Pradhyani, Anisa Fitrianti, Ika Garno . Garno Garno Garno, G. Garno, Garno garno, Garno Hafiz Firdaus Hakim, Rijal Abdul Hamidah, Khoirunnisa Hapipah, Nur Harry Dhika, Harry Herlin Apriani Heryana, Nono Hopi Siti Hopipah Iip Supiyani Ilham Fitrahriansyah Intan Purnamasari Iqbal Maulana Irman Hermadi Iwan Hermawan Juardi, Didi Khaerunisa, Salsa Kurniadewi, Herwinda Lenteraningati, Anggun Liawati Liawati Lidya Ningsih Maesaroh, Maya Marselina, Sonia Maulana, Asyifa Mayasari, Rini Miftah Fauzy Alvaruqi Miftahussalamah, Dwi Mufid, Tsaqif Mu'tashim Muhamad Arya Fadila Muhammad Haikal Muhammad Samsul Ma'arif Mulyana, Alex Naufal Ibnu Salam Novia Indriyani Puji Astuti Nugroho, Rosyid Eko Nur Maelani Asih Nur Padilah, Tesa Nurhidayat Nurhidayat Oktia Dita Padilah, Tesa Nur Pamungkas, Wisnu Yogi Praditya Putri Utami Pratama, Okta Puput Silva Rosiana Rafliansyah Putra Rahmi, Hayatul Raisya Rahma Ramadani, Daffa Tama Ramona Purwa Novitri, Suci Rifky Maulana Rijal Abdulhakim Rini Mayasari Riza Ibnu Adam Riza Ibnu Adam, Riza Ibnu Rizal Fadilah Rizkyawan, Hafil Rizwan, Ivan Rozikin, Chaerur Salsabila, Farras Siregar, Amril Mutoi Sofi Defiyanti Surya Prabu Al Amin, Sinar Syah Adi Fahlevi Syifa Fauziyah, Syifa Tesa Nur Padilah Ultach Enri Ultach Enri Vicky Chandra Wahyuningrum Ayu Yaspin Andika Muhamad Nur Cholis Yayan Gustiana Yuazijah, Afiva Yurike Oktavirani Yuyun Umaidah Yuyun Umaidah Yuyun Umaidah Zahra, Vanissa Fatimatul