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Firdhayanti, Ayu
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Library & Information Science

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Rancang Bangun Pendingin Ruang Otomatis Menggunakan Mikrokontroler dan Sensor Pir Ramadhan, Muhammad Rama; Wijaya, Ryan Aji; Firdhayanti, Ayu
Sienna Vol 5 No 2 (2024): Sienna Volume 5 Nomor 2 Desember 2024
Publisher : LPPM Universitas Muhammadiyah Kotabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47637/sienna.v5i2.1645

Abstract

Various industries have been impacted by advances in automation technology, such as energy management and temperature control in enclosed spaces. One interesting application is an automated air conditioning system, which aims to reduce energy wastage in the use of conventional chillers. Inefficient use of air conditioners often leads to high carbon emissions and energy wastage, especially in tropical countries like Indonesia. To improve the efficiency of the cooling system, you can use passive infrared (PIR) sensors. Activated only when people are present in the room, PIR sensors detect changes in the radiation produced by the human body. PIR sensors can be connected to cooling systems with microcontrollers such as Arduino and ESP8266. This enables automatic remote control and monitoring. The purpose of this research is to create and implement a PIR sensor-based automatic air conditioning system equipped with an Arduino controller. Evaluation is conducted to test the performance of the system in detecting human presence and controlling the air conditioner automatically. It is expected that this system will be a simple and efficient solution to reduce the energy usage of conventional air conditioners. In addition, it will support energy efficiency and environmental sustainability.
Klasifikasi Sentimen Ulasan Pengguna MyPertamina Menggunakan Algoritma Naive Bayes dan TF-IDF: Klasifikasi Sentimen Ulasan Pengguna MyPertamina Menggunakan Algoritma Naive Bayes dan TF-IDF Zulkarnaini, Zulkarnaini; Purnomo, Hendri; Firdhayanti, Ayu
JUPITER (Jurnal Penelitian Ilmu dan Teknologi Komputer) Vol 17 No 2 (2025): Jurnal Penelitian Ilmu dan Teknologi Komputer (JUPITER)
Publisher : Teknik Komputer Politeknik Negeri Sriwijaya

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Abstract

Analisis sentimen merupakan cabang dari pemrosesan bahasa alami (Natural Language Processing) yang berfungsi untuk mengevaluasi opini atau emosi pengguna terhadap suatu objek berdasarkan teks. Penelitian ini bertujuan untuk mengklasifikasikan sentimen ulasan pengguna terhadap aplikasi MyPertamina ke dalam tiga kategori, yaitu positif, netral, dan negatif. Data diperoleh dari ulasan pengguna aplikasi yang kemudian diolah melalui tahapan praproses teks dan vektorisasi menggunakan metode Term Frequency-Inverse Document Frequency (TF-IDF). Model klasifikasi yang digunakan dalam penelitian ini adalah Multinomial Naive Bayes karena kemampuannya dalam mengelola data teks yang bersifat multinomial. Hasil evaluasi menunjukkan bahwa algoritma Naive Bayes memberikan performa yang cukup baik dengan tingkat akurasi sebesar 84%. Selain itu, visualisasi WordCloud digunakan untuk menampilkan kata-kata yang paling sering muncul dalam tiap kategori sentimen, yang memberikan gambaran lebih mendalam mengenai persepsi pengguna. Penelitian ini menunjukkan bahwa analisis sentimen dapat menjadi alat bantu yang efektif dalam mengukur kepuasan pengguna serta dalam merumuskan strategi peningkatan kualitas layanan digital berbasis data.
PERANCANGAN SISTEM INFORMASI REGISTRASI LOMBA PEKAN OLAHRAGA DAN SENI DENGAN PEMANFAATAN INTEGRASI PAYMENT GATEWAY DI SMAN 15 BANDAR LAMPUNG firdhayanti, ayu; Agarina, Melda; Sutedi, Sutedi; Suryadi , Arman; Fauzi Maulana, Muh Royan
Jurnal SIMADA (Sistem Informasi dan Manajemen Basis Data) Vol. 7 No. 2 (2024): Jurnal SIMADA (Sistem Informasi dan Manajemen Basis Data)
Publisher : LP2M Institut Informatika Dan Bisnis Darmajaya

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Abstract

This research aims to design a web-based information system to facilitate the registration process for competitions in Sports and Arts Week (PORSENI) at SMAN 15 Bandar Lampung. This research was motivated by the complexity of the manual registration process that involved many participants from different schools, especially those from out of town. The designed information system integrates an online payment function through the Xendit payment gateway. This system is expected to increase the efficiency of the registration process, reduce the committee's workload, and provide convenience for participants to register and pay online. The results showed that the developed information system successfully simplified the registration and payment process of the competition. Participants can register and pay independently without coming directly to the committee. In addition, this system can automate several processes that were previously done manually, thus increasing the efficiency of the committee's work. Implementing this information system has positively contributed to the organisation of PORSENI at SMAN 15 Bandar Lampung.
Co-Authors Fauzi Maulana, Muh Royan Hendri Purnomo Melda Agarina Ramadhan, Muhammad Rama RR. Ella Evrita Hestiandari Suryadi , Arman Sutedi Sutedi Wijaya, Ryan Aji