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All Journal JURNAL PENDIDIKAN TAMBUSAI Computer Science (CO-SCIENCE) Simpatik: Jurnal sistem Informasi dan Informatika MATHunesa: Jurnal Ilmiah Matematika
Chalimatusadiah, Chalimatusadiah
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Computer Science & IT Mathematics Social Sciences

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Penerapan Algoritma C4.5 Untuk Menentukan Kepuasan Pengguna Aplikasi E-Open Study Kasus : Kelurahan Jati Makmur Komalasari, Yuli; Puspitasari, Nabila Rahmah; Chalimatusadiah, Chalimatusadiah
Computer Science (CO-SCIENCE) Vol. 4 No. 2 (2024): Juli 2024
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/coscience.v4i2.3387

Abstract

To support government administration activities in an area, an application called E-Open is needed. The application was created to support the Bekasi City government, one of which is Jatimakmur Village, which is a government agency in Pondok Gede, Bekasi City. The application has been implemented, evaluation of the administration process using the E Open application is required. The aim is to measure, help, test and analyze the level of satisfaction using the E-Open application for Jatimakmur Village residents. Using data mining in data processing to determine the accuracy of each process, accurately converting information so that information is quickly understood and includes collecting, using historical data, patterns or relationships in large data sets. The research population was taken as 150 samples. Quantitative research using the C4.5 algorithm method is used, because it can make predictions by providing an ideal level of accuracy for prediction. Test this research with RapidMiner version 10.1. The results of the processing have a significant effect in determining the classification of the level of citizen satisfaction with the E-Open application. With an accuracy level of 91.33%, while in manual calculations the accuracy was 90.67% for the Satisfied percentage, or also known as the Very Good category. Keywords : Accuracy, C4.5 Algorithm,E-Open
BIFURKASI HOPF PADA MODEL DINAMIK S-I-P DENGAN PENYAKIT PADA POPULASI PREY DAN FUNGSI RESPON HOLLING TYPE II DENGAN PEMANENAN PADA PREY Waldhani, Gesti Essa; Chalimatusadiah, Chalimatusadiah
MATHunesa: Jurnal Ilmiah Matematika Vol. 12 No. 3 (2024)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/mathunesa.v12n3.p475-485

Abstract

In this paper, a dynamic S-I-P model with disease in the prey population and Holling type II functional response with harvesting in prey and time-delay were discussed. Model analysis is carried out by determining fixed points, then analyzing the stability of the fixed points and discussing the existence of the Hopf bifurcation. Another modification given to the model is the use of time delays. Delay time is the time needed for a predator to hunt its prey. The first case is a model without time delay, it is obtained that 2 fixed points are unstable and 2 fixed points are stable. One of them is the interior fixed point tested with the Routh-Hurwitz criteria. The second case is a model with a delay time, the critical delay value is obained. Hopf bifurcation occurs when the delay time value is equal to the critical delay value and also fulfills the transversality condition. Observations on the model simulation are carried out by varying the value of the delay time. When the Hopf bifurcation occurs, the graph on the solution plane shows a constant oscillatory movement. If the value of the delay time given is less than the critical value of the delay, the controlled system solution goes to a balanced state. Then when the delay time value is greater than the critical delay value, the system solution continues to fluctuate causing an unstable system condition.
Rancang Bangun Sistem Monitoring Produksi Pada PT. Ayra Digdaya Indonesia Komalasari, Yuli; Naufal, Muhammad Fachrezzy; Chalimatusadiah, Chalimatusadiah; Dewi, Yumi Novita
Simpatik: Jurnal Sistem Informasi dan Informatika Vol. 4 No. 2 (2024): Desember 2024
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/simpatik.v4i2.5400

Abstract

Manajemen produksi tidak dapat dipisahkan dari konsep produksi itu sendiri, dimana dalam pengertiannya produksi didefinisikan dengan suatu aktivitas ekonomi yang di dalamnya terjadi proses pengolahan input untuk mendapatkan suatu hasil akhir berupa output yang memiliki nilai dan manfaat lebih tinggi dari sebelumnya. Dari permalasahan yang ada di Ayra Digdaya Indonesia pada bagian produksi, proses penginputan data laporan produksi masih menggunakan lembaran kertas yang dilakukan secara manual lalu dikumpulkan dimeja supervisor, dan menghambat proses penginputan data oleh admin, sehingga admin harus mengambil lembar laporan yg ada dimeja supervisor serta proses pembuatan laporain bulanan yaing memakan waiktu lama sehingga pelaporan hasil produksi kurang efektif. Metode pengembangan yang dilakukan adalah metode waterfall dan perancangan menggunakan UML dan Database MySQL. Perancangan sistem monitoring produksi pada PT. Ayra Digdaya Indonesia dimulai dengan proses analisis kebutuhan sistem dan dilanjutkan dengan proses perancangan sistem yang didasarkan pada hasil analisis kebutuhan. Tahap terakhir dari proses penyusunan sistem ini adalah implementasi perancangan sistem menjadi sebuah sistem baru. Dalam Skripsi ini dapat disimpulkan bahwa sistem monotoring produksi yang dibangun dapat membantu dalam pengolahan monitoring hasil produksi pada PT. Ayra Digdaya Indonesia.
Uji Validitas dan Uji Reliabilitas Instrumen Penelitian Pemahaman Konsep Dasar Aljabar Azizah, Nur; Chalimatusadiah, Chalimatusadiah
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Aljabar merupakan cabang matematika yang berfokus pada manipulasi simbol dan variabel untuk menyelesaikan masalah numerik dan struktural. Konsep aljabar diperkenalkan kepada siswa pada jenjang SMP di kelas 7, namun banyak siswa terutama kelas 8 dan 9 masih mengalami kesulitan dalam memahami konsep aljabar karena sifatnya yang abstrak dan kurangnya koneksi dengan kehidupan nyata. Karena konsep aljabar adalah salah satu hal yang penting untuk dipelajari, maka pemahaman aljabar yang baik sangat dibutuhkan untuk keberhasilan akademik di jenjang pendidikan selanjutnya. Penelitian ini bertujuan untuk menganalisis tingkat pemahaman siswa SMP terhadap konsep dasar dan penerapan aljabar, khususnya di kelas 8 dan 9 dengan menyebarkan kuisioner yang berisikan pernyataan tentang pemahaman konsep aljabar dan penerapan aljabar. Untuk memastikan keakuratan pengukuran, instrumen penelitian diuji validitas dan reliabilitasnya menggunakan analisis korelasi serta uji Cronbach’s Alpha. Hasil penelitian diharapkan dapat memberikan rekomendasi bagi pendidik dalam merancang metode pembelajaran yang lebih efektif guna meningkatkan pemahaman siswa terhadap aljabar.
Penerapan Algoritma C4.5 Untuk Menentukan Kepuasan Pengguna Aplikasi E-Open Study Kasus : Kelurahan Jati Makmur Komalasari, Yuli; Puspitasari, Nabila Rahmah; Chalimatusadiah, Chalimatusadiah
Computer Science (CO-SCIENCE) Vol. 4 No. 2 (2024): Juli 2024
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/coscience.v4i2.3387

Abstract

To support government administration activities in an area, an application called E-Open is needed. The application was created to support the Bekasi City government, one of which is Jatimakmur Village, which is a government agency in Pondok Gede, Bekasi City. The application has been implemented, evaluation of the administration process using the E Open application is required. The aim is to measure, help, test and analyze the level of satisfaction using the E-Open application for Jatimakmur Village residents. Using data mining in data processing to determine the accuracy of each process, accurately converting information so that information is quickly understood and includes collecting, using historical data, patterns or relationships in large data sets. The research population was taken as 150 samples. Quantitative research using the C4.5 algorithm method is used, because it can make predictions by providing an ideal level of accuracy for prediction. Test this research with RapidMiner version 10.1. The results of the processing have a significant effect in determining the classification of the level of citizen satisfaction with the E-Open application. With an accuracy level of 91.33%, while in manual calculations the accuracy was 90.67% for the Satisfied percentage, or also known as the Very Good category. Keywords : Accuracy, C4.5 Algorithm,E-Open
Co-Authors KOMALASARI, YULI Naufal, Muhammad Fachrezzy Nur Azizah Puspitasari, Nabila Rahmah Waldhani, Gesti Essa Yumi Novita Dewi