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PERANCANGAN TAMPILAN APLIKASI UJIAN BERBASIS KOMPUTER UNTUK UJIAN HARIAN SEKOLAH MENENGAH ATAS Nugrahaeni Puspita Dewi, Catur; Raafi'udin, Ridwan
ILKOM Jurnal Ilmiah Vol 10, No 3 (2018)
Publisher : Program Studi Teknik Informatika Fakultas Ilmu Komputer Univeristas Muslim Indonesia

Information and communication technology develops and forces users to always improve the implementation of our technology. Almost in society both in the industry in business competition and education sector to improve educational services. Increasing number of students, it must be required to use technology in managing their daily educational activities. Today there are many high schools that implement computer based test, only limited for training and taking of national final exams. So, with a short time there are still many students who are not familiar with the form of computer based test. Although these schools already have computer laboratories. In this research, the tim will try to design a computer based test system for schools that already have computer laboratories to be able to produce a daily test model independently. This research will produce a model graphic user interface (GUI) that can support the daily exam process in school and is expected to help students to deal with other computer based test models. To produce a User Friendly display model, many survey of students and teachers was conducted on the form of the test display with various features, such as photos, clocks, countdown timers, formulas, and standard values or constants.

Aplikasi Location Based Services (LBS) untuk Pendataan Potensi Daerah dengan Pendekatan Customer Relationship Management (CRM) Bayu Hananto; Ridwan Raafiudin; Tri Rahayu
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 1 No 3 (2017): Desember 2017
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

The purpose of this research is to build an application prototype for potential area data collection by using Location Based Service (LBS). In the prototype building stage of this application, use the method of Customer Relationship Management (CRM). This CRM method is for the benefit of a particular problem. The results obtained from this study are averaged average reliability (Reliability) with a value of 3.62, and category Usability category (Usability) with an average of 3.51. The model of this application will help local governments, to note the potential of their area.

Perancangan Sistem Informasi Tracerstudy Menggunakan Aplikasi Open Source Di Universitas Ridwan Raafi’Udin; Catur Nugrahaeni Pustpita Dewi; Bayu Hananto
Jurnal Sisfokom (Sistem Informasi dan Komputer) Vol 6, No 1 (2017): Maret
Publisher : ISB Atma Luhur

-- Keberhasilan alumni di dunia kerja atau industri menjadi salah satu tolak ukur keberhasilan perguruan tinggi dalam mendidik dan menghasilkan lulusannya. Untuk mengetahui keberhasilan para alumni maka dibutuhkan suatu sistem yang dapat menarik data dari perusahaan tempat alumni bekerja dan dari alumni itu sendiri. Cara konvensional dengan membagikan kuisioner berbasis kertas dan/ atau mengunjungi perusahaan dirasa kurang efektif karena membutuhkan waktu dan biaya yang banyak. Kemajuan teknologi memberikan suatu jalan atau cara yang lebih mudah dan murah namun membutuhkan pengetahuan di bidang teknologi informasi dan komunikasi terutama di bidang keterampilan komputer. Pada penelitian ini, peneliti mencoba meng-alih mediakan kuisioner konvensional menjadi suatu sistem yang disebut sistem aplikasi tracer study berbasis web. Dengan menggunakan aplikasi yang berbasis web dan internet diharapkan penyampaian dan pengumpulan kuisioner menjadi lebih mudah, cepat, dan murah. Dengan terkumpulnya data yang sebanyak-banyaknya memungkinkan perhitungan dan perkiraan keberhasilan alumni semakin akurat. Dengan data keberhasilan alumni yang akurat maka universitas dapat menggunakan data tersebut sebagai acuan dalam menentukan perbaikan atau peningkatan dalam berbagai sektor di dalam tubuh universitas itu sendiri. Dengan peningkatan yang berlandaskan pada data tracerstudy diharapkan pengembangan universitas akan lebih diterima oleh seluruh stakeholder

PERANCANGAN TAMPILAN APLIKASI UJIAN BERBASIS KOMPUTER UNTUK UJIAN HARIAN SEKOLAH MENENGAH ATAS Catur Nugrahaeni Puspita Dewi; Ridwan Raafi'udin
ILKOM Jurnal Ilmiah Vol 10, No 3 (2018)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v10i3.375.298-305

Information and communication technology develops and forces users to always improve the implementation of our technology. Almost in society both in the industry in business competition and education sector to improve educational services. Increasing number of students, it must be required to use technology in managing their daily educational activities. Today there are many high schools that implement computer based test, only limited for training and taking of national final exams. So, with a short time there are still many students who are not familiar with the form of computer based test. Although these schools already have computer laboratories. In this research, the tim will try to design a computer based test system for schools that already have computer laboratories to be able to produce a daily test model independently. This research will produce a model graphic user interface (GUI) that can support the daily exam process in school and is expected to help students to deal with other computer based test models. To produce a User Friendly display model, many survey of students and teachers was conducted on the form of the test display with various features, such as photos, clocks, countdown timers, formulas, and standard values or constants.

Simulation Of Traveling Salesman Problem For Distribution Of Fruits In Bogor City With Simulated Annealing Method: Simulation Of Traveling Salesman Problem For Distribution Of Fruits In Bogor City With Simulated Annealing Method Ali Khumaidi; Ridwan Raafi'udin; Indra Permana Solihin
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (612.598 KB)

Traveling Salesman Problem (TSP) is a problem of finding the shortest distance when a salesman visits a number of cities, provided that each city is visited exactly once and then returns to the initial city. TSP simulations for fruit distribution in Bogor city with each location having x and y coordinates as distances. The TSP used is a symmetrical TSP whose distance from city a to b has the same distance as city b to a. To solve and find solutions to problems using the Simulated Annealing (SA) Algorithm. The working principle is that at high temperatures metal liquid particles have a high energy level so it is relatively easy to move against other particles. Then as the temperature drops the particle slowly adjusts itself to form a configuration so that a stable state with a minimum energy level is obtained. This minimum energy is the shortest distance. Based on experiments that have been done using SA Algorithm on the TSP problem, the results show that the number of iterations that produce the optimal solution depends on the number of simulated locations. The more simulated location points, a large number of iterations are needed.

Pelatihan Desain Grafis untuk Meningkatkan Kreatifitas dan Menambah Daya Saing Masyarakat Kecamatan Pasar Minggu Jakarta Selatan Ridwan Raafi'udin; Bayu Hananto; Catur Nugrahaeni Puspita Dewi
SULUH: Jurnal Abdimas Vol 2 No 1 (2020): SULUH: Jurnal Abdimas Agustus
Publisher : FEB-UP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/suluh.v2i1.1570

The availability of information and communication technology (ICT) has made it a lot of convenience in everything. An example is the existence of online trading transactions, for we can market these products online both through marketplaces and social media, we must-have products that are slightly different from the others. One way is to design your own product packaging that we will sell, and for example it can be started by making a product logo. This is the basis of community service activities, and this activity utilizes the creative side of partners so that they can create a design that will be packaged in the next stage in the form of merchandise. In this design training phase, partner participants were given the understanding to use vector-based graphic design applications, from creating product logos to digital advertising posters

PENYULUHAN PENCEGAHAN TINDAK KRIMINAL ONLINE KEPADA IBU-IBU DASAWISMA DI RW 10 KELURAHAN CIRACAS "CYBERGUARD: PEMAHAMAN DAN KEAMANAN ONLINE" Neny Rosmawarni; Ridwan Raafi’udin; Catur Nugrahaeni Puspita Dewi; Fajar Edyana
Jurnal Abdimas Bina Bangsa Vol. 5 No. 1 (2024): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v5i2.1160

The rapid development of information technology brings with it various risks, including an increase in online crime. Groups of dasawisma women in RW 10 Ciracas Village are often easy targets for fraud and cybercrime due to a lack of understanding of online security. The "CyberGuard" counseling program is designed to increase awareness and knowledge about the prevention of online crime among dasawisma mothers. Through a series of workshops and educational sessions, the program provides information on the types of cybercrime, signs of online fraud, and preventive steps that can be taken to protect yourself and your family. The results of the evaluation showed a significant increase in the participants' understanding and awareness of online security, as well as their ability to identify and avoid potential cyber threats. This program is expected to be a model for similar counseling in other communities to improve the digital safety of the community at large

Pengujian Algoritma Long Short Term Memory untuk Prediksi Kualitas Udara dan Suhu Kota Bandung Khumaidi, Ali; Raafi'udin, Ridwan; Solihin, Indra Permana
Jurnal Telematika Vol. 15 No. 1 (2020)
Publisher : Yayasan Petra Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61769/telematika.v15i1.340

This study develops the LSTM modeling to predict time series data of air quality in the city of Bandung from the parameters PM10, ISPU, temperature, and humidity. Modeling LSTM with 4 hidden layers, the number of batch sizes that is 32, the optimizer is adam, value of epoch is 1000, and the loss function using Mean Squared Error. The LSTM modeling results show that the network has a fairly good performance in predicting training and testing. The modeling produces a fairly good prediction accuracy for 3 parameters (temperature, humidity, ISPU). This is indicated by the predicted RMSE value which is smaller than the standard deviation value of the dataset test. However, the prediction results generated from the four test parameters based on the order of the best are the prediction of humidity, temperature, ISPU, and PM10 with unfavorable predictive results. Penelitian ini mengembangkan pemodelan LSTM untuk memprediksi data time series, yaitu kualitas udara di kota Bandung, dari parameter PM10, ISPU, suhu, dan kelembaban. Pemodelan LSTM dengan 4 hidden layer, penentuan jumlah batch size yaitu 32, penentuan optimizer adalah adam, epoch senilai 1000, dan penentuan fungsi loss menggunakan mean squared error. Hasil pemodelan LSTM menunjukkan bahwa jaringan memiliki kinerja yang cukup baik pada prediksi training dan testing. Pemodelan menghasilkan keakuratan prediksi yang cukup baik untuk 3 parameter (suhu, kelembaban, ISPU).Hal ini ditunjukkan dengan nilai RMSE prediksi yang lebih kecil dari nilai standar deviasi uji dataset. Namun, hasil prediksi yang dihasilkan dari keempat parameter pengujian berdasarkan urutan dari yang paling baik yaitu prediksi kelembaban, suhu, ISPU, dan PM10 dengan hasil prediksi yang kurang baik.

Edukasi Konsep Desa Cerdas Kepada Masyarakat Dalam Rangka Pencanangan Rawapanjang Smart Village (RSV) Wibisono, Bayu; Raafiudin, Ridwan; Wirawan, Rio; Solihin, Indra Permana; Seta, Henki Bayu; Jayanta, Jayanta
Jurnal Pengabdian kepada Masyarakat Bidang Ilmu Komputer Vol 3 No 1 (2024): Jurnal Pengabdian Kepada Masyarakat Bidang Ilmu Komputer (ABDIKOM)
Publisher : Fakultas Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52958/abdikom.v3i1.6751

Dalam era globalisasi dan kemajuan teknologi informasi, perkembangan konsep Smart City atau kota cerdas telah menjadi fokus dalam pembangunan perkotaan di berbagai negara. Namun, tidak hanya perkotaan yang dapat memanfaatkan konsep ini, tetapi juga desa-desa di pedesaan. Munculnya konsep Smart Village atau desa cerdas menjadi alternatif untuk mengembangkan desa-desa yang mandiri dan berkelanjutan. Pada pelaksanaan pengabdian kepada masyarakat ini dilakukan kegiatan penjajakan awal hingga penyampaian konsep-konsep smart village di Desa Rawapanjang. Kegiatan ini dapat memberikan gambaran-gambaran kepada perangkat desa dan masyarakat tentang konsep smart village serta tahapan-tahapan esensial dalam membangun smart village dengan berpedoman pada blueprint kerangka fungsional sistem informasi kepemerintahan.

Effects of hyperparameter tuning on random forest regressor in the beef quality prediction model Raafi'udin, Ridwan; Purwanto, Yohanes Aris; Sitanggang, Imas Sukaesih; Astuti, Dewi Apri
Computer Science and Information Technologies Vol 6, No 2: July 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/csit.v6i2.p159-168

Prediction models for beef meat quality are necessary because production and consumption were significant and increasing yearly. This study aims to create a prediction model for beef freshness quality using the random forest regressor (RFR) algorithm and to improve the accuracy of the predictions using hyperparameter tuning. The use of near-infrared spectroscopy (NIRS) in predicting beef quality is an easy, cheap, and fast technique. This study used six meat quality parameters as prediction target variables for the test. The R² metric was used to evaluate the prediction results and compare the performance of the RFR with default parameters versus the RFR with hyperparameter tuning (RandomSearchCV). Using default parameters, the R-squared (R²) values for color (L*), drip loss (%), pH, storage time (hour), total plate colony (TPC in cfu/g), and water moisture (%) were 0.789, 0.839, 0.734, 0.909, 0.845, and 0.544, respectively. After applying hyperparameter tuning, these R² scores increased to 0.885, 0.931, 0.843, 0.957, 0.903, and 0.739, indicating an overall improvement in the model’s performance. The average performance increase for prediction results for all beef quality parameters is 0.0997 or 14% higher than the default parameters.

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