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All Journal PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic Seminar Nasional Informatika (SEMNASIF) Jurnal Komtika (Komputasi dan Informatika) SPEED - Sentra Penelitian Engineering dan Edukasi Computing and Information System Journal
Mukhtar Hanafi
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Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Library & Information Science

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APLIKASI FUZZY NEURAL NETWORK (FNN) PADA SISTEM KONTROL DENGAN WAKTU TUNDA Mukhtar Hanafi
Seminar Nasional Informatika (SEMNASIF) Vol 1, No 1 (2012): Computation And Instrumentation
Publisher : Jurusan Teknik Informatika

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Abstract

Waktu tunda pada sistem kontrol terjadi karena adanya jeda waktu bagi sensor untuk mendeteksi terjadinya error, sehingga mempengaruhi kecepatan controller untuk meresponnya. Akibat keidaklineran dan ketidakpastian ini akan berdampak pada respon sistem secara keseluruhan. Jenis controller yang sering digunakan pada sistem kontrol ini adalah PID. Untuk mendapatkan respon sistem yang baik, harus dilakukan lebih dahulu tuning terhadap parameter P,I dan D pada PID controller pada nilai waktu tunda tertentu. Jika terjadi perubahan nilai waktu tunda diluar toleransi yang diijinkan, maka harus dilakukan tuning ulang untuk memperbaiki lagi respon sistemnya, dan ini membutuhkan waktu dan keahlian tersendiri. Sementara itu, Fuzzy Logic Controller (FLC) menawarkan metode pengontrolan yang lebih robust dalam menyesuaikan perubahan parameter akibat keidaklineran dan ketidakpastian tersebut. Tetapi FLC sangat tergantung pada basis aturan (rule-based) yang digunakan dalam proses pengandalian sistem, dan rule-based tersebut sangat dipengaruhi oleh pengetahuan dan pengalaman perancangnya. Aturan yang salah dapat mengakibatkan ketidakstabilan sistem. Fuzzy Neural Network (FNN), sistem hybrid dari fuzzy dan jaringan syaraf, dapat memberikan solusi bagi sistem kontrol yang dikembangkan dengan konsep logika fuzzy ini. Hasil simulasi dengan matlab menunjukkan bahwa kemampuan pembalajaran yang dimiliki oleh unsur jaringan syaraf pada FNN dapat membantu memberikan respon sistem yang baik meskipun pada rule-based aturan yang digunakan terbatas.
MENINGKATKAN KEMAMPUAN PENGENALAN POLA SINYAL DENGAN OPTIMALKAN RULES PADA FUZZY NEURAL NETWORK Mukhtar Hanafi
Seminar Nasional Informatika (SEMNASIF) Vol 1, No 4 (2013): Intelligent System dan Application
Publisher : Jurusan Teknik Informatika

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Abstract

Fuzzy Neural Network (FNN) merupakan suatu model yang dilatih menggunakan jaringan syaraf, namun struktur jaringannya diintepretasikan dengan sekelompok aturan-aturan (rules) fuzzy. Meskipun logika fuzzy dapat menerjemahkan pengetahuan pakar secara langsung melalui aturan-aturan dengan label-label linguistik, tapi umumnya membutuhkan waktu yang lama untuk mendisain dan menyesuaikan fungsi keanggotaan yang dapat memberikan definisi secara kuantitatif  label-label linguistik ini. Hal ini menjadi sebih sulit lagi manakala rules yang ada sangat terbatas. Selanjutnya, bagaimana mengoptimalkan keterbatasan rules untuk meningkatkan kemampuan FNN dalam proses pembelajarannya. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan fuzzy rules dalam proses pembelajaran pada FNN,  serta peningkatan kemampuannya dalam mengenal pola sinyal yang dilatihkan. Pengujian dilakukan dengan menggunakan model jaringan FNN empat layer , algoritma pembelajaran back propagation dan tiga rule base fuzzy, yaitu  dengan 9, 25 dan 49 rules. Pada penelitian ini, untuk mengembangkan rule base fuzzy dari 9 rules menjadi 25 dan 49 rules adalah dengan cara penambahan fungsi keanggotaan masukan error (e) dan perubahan error (de). Hasil pengujian menunjukkan, dengan penambahan jumlah rules, kemampuan FNN dalam mengenal pola sinyal menjadi lebih baik. Semakin banyak rules yang digunakan, kemampuannya dalam pengenali pola menjadi semakin baik akan tetapi proses belajar yang dilakukan juga semakin lama.
RANCANG BANGUN WEBSITE E-COMMERCE PADA HIJABNYA NISA DI MAGELANG Nur Anisa; Najibullah Ibrahim; Listuhayu Amalia; Mukhtar Hanafi; Nugroho Agung Prabowo - UM Magelang
SPEED - Sentra Penelitian Engineering dan Edukasi Vol 13, No 1 (2021): Speed Januari 2021
Publisher : APMMI - Asosiasi Profesi Multimedia Indonwsia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (727.235 KB) | DOI: 10.55181/speed.v13i1.685

Abstract

Abstract - Nisa's hijab is one of the home made businesses in the fashion sector that provides a wide variety of hijabs. Nisa's hijab, in the transaction process, she hasn't used website-based sales but still uses manual transactions through social media. The method used for the process of making an e-commerce website uses UML (Unified Modeling Language) to be communicated with the program. The database is built using ERD (Entity Relationship Diagram) which consists of two main components, namely entities and relationships. This r-commerce website is used as a marketing medium that facilitates sales transactions and product management. The sales system in Nisa's Hijab is equipped with easy access rights to customers if you want to become a member, namely the freedom to shop with more than one number of products in each purchase transaction. ManagementKeywords: e-commerce, marketing media, transactions Abstrak - Hijabnya Nisa merupakan salah satu bisnis home made dalam bidang fashion yang menyediakan berbagai macam variasi hijab. Hijabnya Nisa ini, dalam proses transaksinya belum menggunakan penjualan berbasis website melainkan masih menggunakan transaksi manual dengan melalui media sosial. Metode yang digunakan untuk proses pembuatan website e-commerce ini menggunakan UML (Unified Modeling Language) untuk dikomunikasikan dengan program. Basis data dibangun dengan menggunakan ERD (Entitas Relationship Diagram) yang terdiri dari dua komponen utama yaitu entitas dan relasi. Website r-commerce ini digunakan sebagai media pemasaran yang memermudah transaksi jual belidan pengelolaan produk. Sistem penjualan di Hijabnya Nisa dilengkapi kemudahan hak akses kepada pelanggan jika ingin menjadi member yaitu kebebasan berbelanja dengan jumlah produk lebih dari satu dalam setiap transaksi pembelian. Pengelolaan Kata kunci: e-commerce, media pemasaran, transaksi
Model Konseptual E-Da'wah Muhammadiyah Berbasis Web Nugroho Agung Prabowo; R Arri Widyanto; Bambang Pujiarto; Mukhtar Hanafi; Andi Widiyanto; Meidar Hadi Avizenna
Jurnal Komtika (Komputasi dan Informatika) Vol 6 No 1 (2022)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/komtika.v6i1.7093

Abstract

The development of information and communication technology has been proactively addressed by Muhammadiyah. Muhammadiyah has modernized da'wah methods by utilizing ICT technology in every activity, but it is still limited to media commonly used by the public such as social media, the web on the Internet, and so on, so that it is still limited, partial, and has not been systematic and structured ally serves its people and is constrained in monitoring and evaluation. The use of web based systems can be a solution to develop locations or e-da'wah based on geography while answering problems in the management and branch of the Muhammadiyah region in monitoring and evaluating its activities. The research method used is to use quantitative methods to obtain primary data to find out the user's desire for e-da'wah in Muhammadiyah citizens while the observation method and survey questionnaire are used to evaluate the acceptance of Muhammadiyah member users to the use of e-da'wah applications that have been made. This research aims to design a framework for the concept of web-based e-da'wah applications. As a result, the e-da'wah application model developed on a web-based basis has received responses from 57% of respondents who find it easy to understand the studies presented in this e-da'wah media.
Traffic Congestion Detection Using YOLOv8 Algorithm With CCTV Data Indra Bayu Pangestu; Maimunah, Maimunah; Mukhtar Hanafi
PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic Vol. 12 No. 2 (2024): September 2024
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/piksel.v12i2.9953

Abstract

Community development and growth according to data from the Central Java Statistics Agency regarding the number of vehicles in Central Java Province in 2021 is 20 320 743. The increasing growth of society has caused vehicle density which is a serious problem in urban areas. This study developed a congestion detection system using the YOLOv8 algorithm to analyze traffic density from CCTV footage. Automated detection of traffic congestion is a critical challenge in urban transport management. YOLOv8, a fast and accurate object detection algorithm, is used to identify vehicles and count their number in various areas of the highway. This information is then processed to assess road congestion conditions, with the aim of detecting congestion. The data obtained were tested on two road scenarios and traffic conditions to evaluate the performance of the system. The results showed that the proposed system was able to detect congestion with an accuracy level of 59.2% from several experiments. The use of YOLOv8 enables real-time detection with efficient computing resources, making it a potential solution for large-scale deployment. This research shows that the incorporation of advanced object detection algorithms such as YOLOv8 with CCTV data can provide an effective solution for traffic management in large cities. This system is expected to improve response to congestion, help control traffic, and reduce the negative impact of congestion in urban areas
Web-Based Online Inventory Booking System: A Case Study of Ngawen Muntilan Magelang Indonesia Nugroho Agung Prabowo; Irsatu Nurhayadin; Arif Setyo Wicaksono; Zuan Afrisaul Haq; Mukhtar Hanafi; Bambang Pujiarto; R. Arri Widyanto
Computing and Information System Journal Vol. 1 No. 2 (2025): Integration of Automation and Information Systems in Enhancing Organizational C
Publisher : IndoCompt Publisher

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Abstract

This study describes the development and implementation of a web-based online borrowing and booking system for inventory items in the Dusun Ngawen community, Muntilan, Magelang. The system was designed using an Object-Oriented Programming (OOP) approach to ensure a modular, flexible, and efficient structure for future scalability. The research began with user requirement analysis involving residents and inventory managers, followed by OOP-based architectural design, code implementation using encapsulation, inheritance, and polymorphism principles, and functionality testing before online deployment. The resulting system enables residents to view available inventory, submit borrowing requests, and track borrowing status in real-time through a responsive web interface. The system also features an admin dashboard with integrated data management for user registration, item availability, and borrowing transactions. Results show that the system effectively overcomes communication barriers in traditional inventory borrowing processes, ensures transparency of item availability, and streamlines monitoring and confirmation processes. This innovation not only improves service efficiency within the RT environment but also provides a reference framework for similar community-based system developments. However, optimal utilization requires socialization and training for residents and managers. Overall, the implementation demonstrates that web-based technology with OOP design can significantly advance inventory management practices in local residential communities
Co-Authors Andi Widiyanto Arif Setyo Wicaksono Bambang Pujiarto Indra Bayu Pangestu Irsatu Nurhayadin Listuhayu Amalia Maimunah, Maimunah Meidar Hadi Avizenna Najibullah Ibrahim Nugroho Agung Prabowo Nugroho Agung Prabowo Nugroho Agung Prabowo - UM Magelang Nur Anisa R Arri Widyanto R. Arri Widyanto Zuan Afrisaul Haq