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Rahmat Rahmat

Pusat Rekayasa Perangkat Nuklir Ã¢Â€Â“ BATAN

Author-ID : 356004

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Development of AI-Based Public Safety System with Face Recognition Using CNN and SVM Models in Real-Time Alifa, Naila Ratu; Yana Cahyana; Rahmat, Rahmat; Sutan Faisal
Journal of Applied Informatics and Computing Vol. 9 No. 3 (2025): June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i3.9524

Sexual crimes are an increasing problem, with many cases difficult to identify due to the limitations of existing surveillance systems. This study aims to develop an Artificial Intelligence (AI)-based system using Convolutional Neural Network (CNN) and Support Vector Machine (SVM) for gender identification in order to support sexual crime investigations. The methods used include processing facial image datasets, training models using CNN for feature extraction, and SVM for gender classification. The results showed that the CNN model achieved an accuracy of 90.15%, while the SVM model only achieved an accuracy of 82.16%. Further evaluation with a confusion matrix showed that CNN was more accurate in classifying gender than SVM. With these results, the developed system has the potential to help authorities identify perpetrators of sexual crimes more quickly and accurately. The dataset used consists of 23,706 grayscale facial images of 48x48 pixels, with a balanced distribution of male and female samples. The CNN architecture includes three convolutional blocks and achieves 90.15% accuracy. Although designed for real-time operation, inference speed needs further validation using FPS or latency metrics on specific hardware platforms.

Sentiment Analysis of User Reviews of the AdaKami Online Loan App from the App Store Using SVM and Naive Bayes Azzahra, Wava Lativa; Jamaludin Indra; Rahmat, Rahmat; Sutan Faisal
Journal of Applied Informatics and Computing Vol. 9 No. 3 (2025): June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i3.9536

This study aims to classify sentiments on user reviews of the AdaKami online loan application, which are obtained through web scraping techniques from the Apple App Store platform. A total of 2000 reviews were collected, then selected and 1000 reviews were selected to be manually labeled by two linguistic experts, to ensure the validity of the classification. Sentiments are divided into three categories, namely negative, neutral, and positive. The classification model was built using two machine learning algorithms, namely Support Vector Machine (SVM) and Naïve Bayes (NB). The evaluation was carried out by measuring accuracy, precision, recall, F1-score, as well as through confusion matrix and cross-validation. The results showed that SVM performed better, with an accuracy of 97.5%, an F1-score of 0.97, and an average cross-validation accuracy of 84.69%. In contrast, Naïve Bayes recorded an accuracy of 81.4% and an F1-score of 0.77. The results of the paired t-test showed that the difference in performance between the two models was statistically significant (p < 0.05). The SVM model was then applied to predict 971 unlabeled reviews, and the results showed a dominance of negative sentiment. Wordcloud visualizations reinforced this finding, with words such as “bilih”, “bunganya”, and “teror” as the most frequently occurring words. These findings prove that SVM is more effective in classifying online loan review sentiments, as well as providing important insights for developers in understanding user perceptions and experiences.

Sentiment Analysis on the Relocation of the National Capital (IKN) on Social Media X Using Naive Bayes and K-Nearest Neighbor (KNN) Methods Wulandari, Nova; Cahyana, Yana; Rahmat, Rahmat; Hikmayanti, Hanny
Journal of Applied Informatics and Computing Vol. 9 No. 3 (2025): June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i3.9552

This study investigates public sentiment toward the relocation of Indonesia’s capital from Jakarta to East Kalimantan, focusing on reactions from social media platforms such as X (formerly Twitter). Understanding these sentiments is crucial for the government to gauge support for this significant policy shift. The study compares the performance of two classification algorithms, Naïve Bayes and K-Nearest Neighbor (K-NN), in sentiment analysis. A total of 1.277 comments were collected using the tweet-harvest library through a crawling process. The data underwent preprocessing, including cleaning, case folding, normalization, stopword removal, tokenization, and stemming. Sentiment labels were assigned through both manual and automated methods, while feature extraction was performed using the TF-IDF technique. The algorithms' performance was assessed using accuracy, precision, recall, and F1-score metrics. The results revealed that Naïve Bayes outperformed K-NN, with an accuracy of 70%, precision of 72%, recall of 70%, and an F1-score of 69%. In contrast, K-NN achieved an accuracy of 60%, precision of 62%, recall of 60%, and an F1-score of 59%. These results suggest that Naïve Bayes is more effective in classifying sentiment related to the capital relocation. The findings offer valuable insights for policymakers and highlight the potential of automated sentiment analysis as a tool for monitoring public opinion on major governmental policies.

Co-Authors - Sapriya . Aprizal . Hamsiah A. Ni’mahtul Churriyah A., Abdulkarim AA Sudharmawan, AA Abd. Rahim Arsyad Abd. Rasyid Syamsuri Abdani, Abdani Abdi Abdi, Abdi Abdul Azis Abdul Karim, Ivan Junaidy Abdul Rahim Abdul Rahman Abdullah, Wahidah Abu Bakar Achmad Khudori Soleh Achmad, Syifa Latifah Achmadi, Nida Qurota Akyun Sadjad Ade Agung Harnawan, Ade Agung Ade Khadijatul Z Harahap Ade Putra, Hafrizal Okta Afdhal, Andi muhammad Afifah, Husna Ainul Afriandi, Fitra Afrizal S Agus Hermanto Agus Setiawan Ahmad Afdhal Fikri Ahmad Syarief Iskandar, Ahmad Syarief Aim Abdulkarim Aini, Dinda Nurul Aini, Fadhilah Ajat, Ajat Akbar, Muh.Rafli Akhbar Akhbar Akhriana, Asmah Akidah, Ihramsari Alganiu, Ajeng Shalwa Alhadar, Muhdi Alifa, Naila Ratu Alnedral Alrakhman, Riza Alvionika, Nindy Amanda, Zelmira Amelia Amelia Amiruddin, Eky Endriana Ananda Rizki, Fadhia Andi Saenong Anggara, Anggi Angraini, Rita Anis Wahdi Ansyar, Ansyar Arbansyah, Arbansyah Ardiansyah, Rizal Arsyad, Mufid Artika, Bintang Asep Mahpudz Asmaul Husna Asmawiyah Asmawiyah Asnawati Asnawati Assagaf, Fahima Atsani Wulansari Aulia Nurul Hikmah Ayub Ayub, Ayub Azmin, Muhammad Azzahra, Wava Lativa Badaruddin Anwar Badrudin Baharudin Baharudin Baihaqi, Kiki Ahmad Baskoro, Catur Hilman Adritya Haryo Bhakti Basri, Surya Kelana BASTIAN BASTIAN, BASTIAN Bintang Azhar, Ariq Budi Azhari Budi Nugroho Busaeri, Sitti Rahbiah Cahyono Cahyo Yono Candra Wardhani, Novia Sagita Candra, Yuni Cecep Darmawan, Cecep Christoporus, Christoporus Cindy Elfira Boom Dadang Sundawa, Dadang Dalimunthe, Femmy Indriany Dambe, Jumriani Dany Try Hutama Hutabarat Dasim Budimansyah Dedi Jubaedi, Ahmad dermawan, ari Despika, Mira DEWI SARTIKA Dewi, Armita Kurnia Dewiana, Ratih Dini Safitri Djafar, Imran Djoko Pekik Irianto Djoko Sulaksono Dwiyatno, Saleh Edmizal, Eval Edmizal Edwar Yazid ELIHAMI, ELIHAMI Elma Nazila Putri Emiel Salim Siregar Emrizal Encep Syarief Nurdin, Encep Syarief Endang Danial, Endang Eni Kurniawati Ervin Nora Susanti, Ervin Nora Erwin Pradian Fachrurazi Fadhil, Dimas Nu’man Fadhil, Moh Fadlurahamn, Muhammad Hammam Fadly Usman Fahrul Fahrul Faisal, Sutan Faizal Faizal, Faizal Fani, Julyia Fatuhrohim, Paras Fauzi Ahmad Muda Fauzi, Ahmad Fauziah, Hani Febrian, Ari Fera Sulastri Ferdiansyah, Yugi Firdiani, Dian Firman, Aditia Firman, Musda Fitri Larassagita, Annisa Fitri Nur Masruriyah, Anis Fitriah Ningsih, Fitriah Gema, Rima Liana Ghifari, M. Alif Al Gogasa, Mirda Gumilar, Agung Tesa Habib Ismail, Habib Habibi, Rahmat Hairil, Muhammad Halimah Tussadia Haliq, Muhammad Idham Hamsah, Hamsah Hanapi, Sitti Harlina Hanasi, Raihan A. Hanifah, Salma Hanny Hikmayanti Handayani Harahap, Ade Khadijatul Harahap, Ade Khadijatul Z Hariyanti Hariyanti Haryanto, Muklis Hasniar Hasniar, Hasniar Hastin Trustisari HENDRA GUNAWAN B11211055 Hendri Irawan Herawati, Yanthy Herizon Hery Sumardiyanto Hery Widijanto Hidayani, Hidayani Hidayanti, Nur Fitri Hidayat Hidayat Hidayat, Ahmad Zaki Hidayat, Sri Devi Hidayati, Mashlihati Nur Hikmah Hikmah Hikmawan, Muhammad Fathul Huda, Ahmad Aly Hudriati, Andi Husni, Hafizul Ibnu Haris Nasution Ida Arianingsih Ida Ayu Putu Sri Widnyani Iim Siti Masyitoh Ikram, Abdurrahman Imam Suyudi, Imam Imam Yuwono Imron, Jefri Inaose, Herlina Indra, Jamaludin Indrawati Indrawati Irianto, Agung Ishak Usman ISKANDAR Islah Munaji Ismail Ismail Ismrida, Ismrida Isninar, Isnainar Isra, Isra Iwan Fajri Jabri, Umiyati Jafar Jafar Jalal, A.M. Fadli Dzil Jamaluddin Jamaluddin Januar Inggar Yadi Jayadiputra, Eka Jefri Imron Joko Yunianto Prihatin Josi, Josi Junaedi, Thomas Jusran Jusran Juwita, Ayu Ratna Kadril, Kadril Kalla, Rastina Kamilah, Nur Azizah Karim Suryadi Kartika Putri, Hanifah Khairil Munawar Khairunisa, Wafa Khalid, Muhammad Idham Khasanah, Mushokhikhul Khitab, Wassam Muhammad Khoiriyah , Maulidatul Khusna, Miftakhul Kokom Komalasari Kristiadi, Aldo Kurniawan, Fadillah Kurniyawan, Handi La Masi, La Masi La Ode Abdul Syukur, La Ode Abdul Latifah, Husnah Layuk, Novita Sambo Leni Anggraeni Lia, Rakhel Lulu Ulfa Sholihannisa Luturmas, Fabiola B Luturmas, Fabiola Bulimasena M, Muh Zulfikar M. Amirullah M. Asrori M. Khairul Anwari M. Mukhlis Madyana Patasik Magito, Magito Maharani, Wa Ode Aulia Mahyuddin Mallongi, Syahril Mar Esterilita Marda, Alfian Margan, Choky Marhaendra Natawibawa Mariya Dewi, Kiki Marpaung, Edward Maryam Rahim Masradin, Masradin Masriani . Masyitoh, Iim Masyitoh, Iim Siti Maulana, Achmad Maulita, Maulita Max Nur Alam Mazhud, Nurfathana Mazid, Sukron Megawati - Megawati, Novi Meilani, Nima Meiske Puluhulawa Metty Agustine Primary Milda Yuliza Misrah Misrah Momo, Abdul Halim Muh. Idris Muhammad Aras Prabowo Muhammad Ardhi Razaq Abqa Muhammad Halimi Muhammad Ishak Muhammad Jamhari Muhammad Qadaruddin MUHAMMAD RIZAL Muhammad Saleh Muhammad Yusuf Muhammad Zalnur Muhlis Madani, Muhlis Mujaddidah, Husnul Mukhtar, Afiah Muliadi Mulyati Mulyati Munawar, Khairil Munir Munir, Munir Murni Murni Mursyid, Andi Miftahul Maulidil Mustain, Zainul Mustikaningsih, Dewi Mutia, Rosita Mutiara Pratiwi, Triana Muzdalifah Muzdalifah Nabila, Aprilian Nahwan, Nahwan Nasfryzal Carlo Nashap, Nashap Nasruddin, Muhammad Irfan Nasution, Emmi Rahmiwita Nasution, Ibnu Haris Natawibawa, Marhaendra Nawansari, Rada Neni Marlina Ngatemin, Ngatemin Ngatono, Ngatono Ningrum, Novi Resmi Ningsih, Sri Rahayu Nisa, Cut Zahratul Normawati Normawati, Normawati Nova Wulandari Novira, Nuraeni Novy Setia Yunas Nugraha, Restu Adi Nugraha, Yogi Nur Afnih, Dwi Nur Annisa NUR FADILAH Nuraeni Nuraeni Nurdin, Cherry Januar Nurgiansah, T Heru Nurhaeda, Nurhaeda Nurhalisa, St Nurhidayati, Titin Nurjannah, Mauliya Redyan NURJAYA NURJAYA, NURJAYA Nurlaelasari, Euis Nurmahadi, Nurmahadi Nursyam Andi Syarifuddin Nurul amin, Nurul Nurul Husna Nut, Nut Pakha, Aji Nasirohman Pambudi, Slamet Pattimukay, Hengky Virgo Richardo Pisi Bethania Titalessy pratama, arif dian Pratama, Febri Fajar Pratiwi, Elda Dwi Prayoga Bestari Pribadi, Esep Regan Pribadi, Rani Putri Prini Desima Evawani Ambarita Pupah, Emmas Mas Purwaningrum, Ajeng Handayani Puspitasari, Andi Putra Astaman Putra, Agung Nugraha Putra, Dean Anggara Putra, Fadli Suardhana Eka Putri, Mellyanti Eka Putri, Nurulita Purnama Qanuni, Umi Qhadijah, Nur Radawati, Rika Radian Januari Situmeang Rahman Ardiansyah, Arif Rahmanti, Virzinia Nur Rahmat, Nur Rahmati Rahmati Rahmawati, Rahmawati Rakhmawati, Nur Endah Ramadiansyah, Mohamad Luthfi Ramdani, Junjun Muhamad Ramli Ramly, Mansyur Rasbawati, Rasbawati Rasiam, Rasiam Rasyid, A. Ramli Ratnasari, Khurin'in Rendra, Agus Reski, Reski Rhussary, Margaretha Lasni Rianta Pratiwi Rifo Nur Laksana Restu RIKA KARTIKA Risky, Moh Rizka Handayani Robingatin Robingatin Roedy Kristiyono, Roedy Rofiatul Hosna Rofiq, M. Nafiur Rohana, Tatang Rohima, Yulia Kuraesin Ila Romadhona, Ekky Ilham Romlah Romli, Asep Darojatul Rosy Tristanti RR. Ella Evrita Hestiandari Rukli Rukli Sabarudin, Mohammad Sabda Sabda Sabrina, Muhammad Sadiman, Akmal Althaffikar Saefulloh, Nandang Sahril Nur Sakti, Reza Fauzi Jaya Salam, Rudhiana Saleh, Sitti Fithriani Saleha Saleha Salim, Muhammad Samiruddin, Samiruddin Samnur . Samsuddin, Sadly Samsul Bahri Samsul Hadi Sandy, Cut Lika Mestika Saputra, Dhio Sardiyo Sardiyo, Sardiyo Sari, Andi Puspita Sari, Ovi Hamidah Sari, Yuyun Kartika Sarkoni, Muhammad Sasmita, Rindi Sembiring, Rinawati Senen Senen Seprina, Seprina Septiawan, Ponco Adi Setia Rini, Setia Sirajuddin Sirajuddin Siregar, Ahmad Afandi Siswanto, Romi Siti Maizul Habibah Siti Masyitoh, Iim Siti Nurbayani Sri Ariyanti Sri Indriani Sri Langgeng Ratnasari Sri Muga, Jaka Sri Wulan, Sri St Aminah Azis St. Rukaiyah SUBHAN, MUHAMAD Sudarmi Sudarmi Sugama, Alviansyah Sugianto, Hendi Suhargon, Rahmat Sujianto Sujianto Sukari Sukari, Sukari Sukma Aditya Sukma, Ria Rifna Sukma, Sukma Sulastri Sulastri sulkarnain, sulkarnain Sumardi . Sumardiyanto, Hery Surabi, Nur Fadilah Suriani Suriani Surya, Herman Suryajaya Suryajaya, Suryajaya Suryobuwono, Abdullah Ade Susan Fitriasari Sutan Faisal sutanti sutanti Sutomo Sutomo Sutrisno, Sutrisno Suwardi Suwardi Syafaruddin, Dilasari Syahira, Alqarina Syahriah, Syahriah Syakni, M Nashir Syamzan Syukur Syarifuddin Dollah Syawal, Raihan Tanshzil, Sri Wahyuni Tanszhil, Sri Wahyuni Tantri Palupi Tarsidi, Deni Zein Thomas Junaedi Tri Syafa'ati, Febriana Tuti Wantu Ulhaq, Muh Zia Umam, Fuadul Umar, Kifli Umi Salamah UMMAH, ROCHMATUL Usma, Fadli Usman Usman Uswatunnisa Vivaldy, Jordy Wahyudin Wahyudin Wiaratama, Muhammad Rafsan Wibawa, I Gede Laksana Widantara, Handang Wiratomo, Giri Yahya, Chaydirul Yana Cahyana Yanuri, Yusuf Rohmat Yulianti Kalaba Yuwanti, Destiyana Z, Sahman Zailani Mohd Yusoff, Mohd Zamroni, M Afif

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Journal : JOURNAL OF APPLIED INFORMATICS AND COMPUTING