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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Jurnal Teknika : Jurnal Teoritis dan Terapan Bidang Keteknikan JOINTECOMS (Journal of Information Technology and Computer Science) Riau Jurnal Teknik Informatika

Nahumi Nugrahaningsih

Universitas Palangka Raya

Author-ID : 9435520

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Library & Information Science Mechanical Engineering

Published : 17 Documents Claim Missing Document

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WEBSITE PEMESANAN PENGINAPAN DI PALANGKA RAYA Adi Novari Chandra; Felicia Sylviana; Nahumi Nugrahaningsih
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 15 No. 1 (2021): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v15i1.1935

Internet as a means of fast and easy information media for the general public, in this case can also be used to find accommodation in Palangka Raya, Website booking accommodation in Palangka Raya also to facilitate customers in the process of booking a stay where customers can know the availability of room, room facilities and last room price also make it easier for the property to use it as a media information on the The property can manage the accommodation, rooms, room facilities as well as confirmation of orders from customers, then admin tasks as the manager of the website. The method of software development used is the advanced waterfall methodology, namely analysis, design, coding and testing. At the analysis stage, there was an analysis of old systems and new systems and analysis of databases using the DFD methodology after that design. In testing stage using Black Box testing method, which is a testing strategy that focuses solely on the functionality factor and software specifications. Suggestion for development of this website by adding filtering feature with map concept based on route or nearby location.

RANCANG BANGUN KANGKANUNG ELEKTRIK DENGAN SENSOR PIEZO BERBASIS MIKROKONTROLER Pisces Adam; Deddy Ronaldo; Nahumi Nugrahaningsih
Jurnal Teknika: Jurnal Teoritis dan Terapan Bidang Keteknikan Vol. 6 No. 1 (2022): Jurnal Teknika: Jurnal Teoritis dan Terapan Bidang Keteknikan, Oktober 2022
Publisher : Fakultas Teknik Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52868/jt.v6i1.7894

Alat musik kangkanung adalah salah satu alat musik tradisional yang berasal dari Kalimantan Tengah. Di sanggar seni igal jue para pemain alat musik kangkanung hanya dapat berlatih di sanggar dikarenakan jumlah alat musik kangkanung yang digunakan terbilang terbatas oleh harga yang begitu mahal berdasarkan bahan yang digunakan mulai Rp1.000.000,- hingga sampai Rp1.500.000,- per gong kangkanung. Di era perkembangan teknologi saat ini alat musik elektrik telah banyak dibuat dan digunakan sebagai opsi tambahan media berlatih memainkan alat musik tradisional. Maka tujuan dari penelitian ini adalah rancang bangun kangkanung elektrik dengan sensor piezoelektrik berbasis mikrokontroler. Rancang bangun kangkanung elektrik dengan sensor piezoelektrik berbasis mikrokontroler pada penelitian ini menggunakan metode eksperimental dimana data didapatkan dari beberapa kali percobaan dengan tahap-tahap pengerjaan yaitu analisi sistem, perancangan sistem, perakitan sistem, pemrograman sistem, dan Pengujian sistem. Hasil akhir dari penelitian ini adalah sistem rancang dan bangun yaitu alat musik kangkanung elektrik yang telah dapat digunakan dengan 10 sensor piezoelektrik sebagai penerima intensitas kekuatan pukulan yang memiliki 5 level velocity dengan nada pentatonik la, do, re, mi, dan sol pada 5 pad atas dan 5 pad bawah, berbasis mikrokontroler arduino mega 2560 dengan 3 kontrol tuning pada nada do = C, do = G, dan do = D pada data set sample suara kangkanung, terhubung dengan speaker sebagai media pengeluar output suara kangkanung

SISTEM PAKAR TINGKAT STRES PADA MAHASISWA SKRIPSI BERBASIS WEBSITE (STUDI KASUS: FAKULTAS TEKNIK UNIVERSITAS PALANGKA RAYA) Putu Atika; Abertun Sagit Sahay; Nahumi Nugrahaningsih; Ariesta Lestari; Felicia Sylviana
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 17 No. 1 (2023): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v17i1.8241

An expert system is an application program that tries to imitate the reasoning of an expert in solving a problem. Students at the Faculty of Engineering who are taking a thesis must have experienced stress when working on a thesis, this is obtained from internal and external factors, stress is divided into 4, namely normal, mild, moderate, and severe stress. To find out what level of stress they are experiencing while working on the thesis. Therefore, in this thesis research, we will discuss how to design and build an Expert System application for Stress Levels for Website-Based Thesis Students (Case Study: Faculty of Engineering, University of Palangka Raya) aims to create an expert system using the forward chaining method and certainty factor, by making an application. In this way, students can find out the level of stress that is being experienced when working on a thesis and be given solutions according to the level of stress. The result is an expert system application that can replace the presence of experts to diagnose stress levels. Students make independent diagnoses by answering the symptoms they are experiencing. This study uses 10 student data from the Department of Civil Engineering 3, Architecture 2, Informatics Engineering 3, and Mining Engineering 2. The results can be concluded that the dominant students experience severe stress levels when working on theses. There is a recapitulation to see the percentage of students who experience stress levels at stress levels and periods.

SMARTBOX PENERIMA PAKET BELANJA ONLINE Deddy Ronaldo; Nahumi Nugrahaningsih; Edy Pratamajaya
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 17 No. 2 (2023): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v7i2.8782

At the time of the development of industry 4.0, freight forwarding services urgently needed increased online buying and selling services supported by e-commerce. Problems with delivery services are usually caused by the sender himself. For example, such as damage and loss of goods sent, high shipping costs and erratic delivery times. To overcome the above problems, the researcher created a design in the form of a package receiving box using a linear sequential method such as analysis, design, coding and testing where this box can later be used when the box owner is not at the box's house. The box that is made has a camera that is used to monitor the whereabouts of the person in front of the box, if someone is in front of the box, the box will send a notification to the telegram so that later the owner can control the box to open so that packages can be put into the box. The final result of this research is a package receiving box that can be controlled and provides notification via telegram, where this tool uses a camera as a person detector and ultrasonic to detect items in the box, which will later provide notifications to the telegram bot so that the package owner knows if there is a courier or not in front of the package receiving box, and also telegram can control the servo to unlock the package receiving box itself.

PERANCANGAN APLIKASI KAMUS DIGITAL BAHASA LAWANGAN – BAHASA INDONESIA Ariesta Lestari; Nahumi Nugrahaningsih; Dwiani Septiana
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 17 No. 2 (2023): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jti.v7i2.9095

Local language is a representation of cultural identity. Apart of being used as communication tools, local language also contains valuable values and local language. Central Kalimantan has a lot of undocumented local language, etiher conventially, let alone digitally. The purposes of this research is to provide a digital vocabulaty of Dayak Lawangan in Central Kalimantan. The stages in Rapid Application Develoment (RAD) method was adopted to build the application. The method was chosen because it is suitable for the lack of development time but it still can provide a precise and complies with the stages of making an application. With this applicatioin, it is hoped that the existence of local language of Dayak Lawangan community can be well documented in order to maintain the diversity.

Analisa dan Identifikasi Genre Musik Menggunakan Metode Support Vector Machine Julian, Innosensius; Nugrahaningsih, Nahumi; Lestari, Ariesta; Licantik, Licantik; Sylviana, Felicia
Journal of Information Technology and Computer Science Vol. 4 No. 2 (2024): JOINTECOMS : Journal of Information Technology and Computer Science
Publisher : Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47111/jointecoms.v4i2.15441

Penelitian ini bertujuan untuk mengembangkan metode identifikasi genre musik dalam musik Indonesia menggunakan Mel-frequency cepstral coefficients (MFCC) sebagai fitur akustik. Sebanyak 400 sampel musik dari berbagai genre digunakan dalam studi ini. Analisis menggunakan Confusion Matrix untuk mengukur akurasi prediksi genre musik berdasarkan model yang dikembangkan.Hasil pengujian menunjukkan nilai precision yang signifikan untuk setiap genre: blues (84%), classical (88%), jazz (71%), dan pop (94%). Selain itu, recall untuk setiap genre juga menunjukkan performa yang baik: blues (81%), classical (83%), jazz (83%), pop (89%). F1-score, yang menggabungkan precision dan recall, menunjukkan kinerja model yang seimbang: blues (82%), classical (86%), jazz (77%), pop (91%).Keseluruhan, model yang dikembangkan mencapai akurasi sebesar 84%, menegaskan efektivitas metode MFCC dalam mengidentifikasi genre musik. Penelitian ini menyoroti pentingnya penggunaan dataset yang representatif untuk meningkatkan akurasi identifikasi genre musik dalam konteks musik Indonesia.

KLASIFIKASI TINGKAT KEMATANGAN BUAH JAMBU KRISTAL BERDASARKAN WARNA KULIT MENGGUNAKAN METODE NAIVE BAYES Saputra, Wahyu; Chandra, Ade; Nugrahaningsih, Nahumi
Riau Jurnal Teknik Informatika Vol. 3 No. 3 (2024): November 2024
Publisher : Prodi Teknik Informatika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/rjti.v3i3.3003

Indonesia, dengan kekayaan alamnya, memiliki banyak jenis tanaman buah, termasuk jambu kristal yang bermanfaat untuk kesehatan. Jambu kristal tumbuh subur di berbagai wilayah, termasuk Kalimantan Tengah. Deteksi kematangan buah sangat penting untuk memastikan kualitas produk, di mana warna buah menjadi indikator utama. Penelitian ini memanfaatkan pengolahan citra digital untuk mengklasifikasikan kematangan jambu kristal menggunakan model ruang warna HSV (Hue, Saturation, Value). Metode ini memisahkan informasi warna dari kecerahan dan saturasi, yang berguna dalam penilaian visual kematangan buah. Klasifikasi dilakukan dengan metode Naive Bayes, yang efektif untuk data berdimensi tinggi seperti citra digital. Tujuan penelitian adalah mengklasifikasikan kematangan jambu kristal menjadi dua kelas: layak panen dan tidak layak panen, serta mengevaluasi akurasi metode Naive Bayes. Hasil penelitian menunjukkan bahwa model Naive Bayes dengan ruang warna HSV mencapai akurasi sebesar 88,10%. Meskipun hasil ini baik, ada potensi perbaikan lebih lanjut melalui teknik preprocessing yang lebih canggih atau penggunaan fitur tambahan. Penelitian ini diharapkan mempermudah pemilahan jambu kristal, meningkatkan efisiensi dalam pengelolaan panen, serta memberikan manfaat bagi petani dan industri pertanian. Dengan klasifikasi yang lebih akurat, identifikasi kematangan buah menjadi lebih efisien, menghemat tenaga, waktu, dan biaya. Kata kunci: Kematangan Buah Jambu Kristal, Pengolahan Citra Digital, Ruang Warna HSV, Naive Bayes, Klasifikasi

Sistem Informasi Pengolahan Data Pembelian Dan Penjualan Produk Usaha Pada Toko Mentari Berbasis Website Mentari, Amy Olivia; Nugrahaningsih, Nahumi
Journal of Information Technology and Computer Science Vol. 2 No. 1 (2022): JOINTECOMS : Journal of Information Technology and Computer Science
Publisher : Universitas Palangka Raya

The development of technology is growing rapidly and there is many oportunity people could gain from that development, which also been implemented in the small and micro business development in various field to achieve its goals. Mentari Store is one of them. To ensure that data processing and report making of goods could be carried out properly, they need to change their management method from conventional into computerized and automated data processing methods. The data for this program is collected through interviews with the store owner, obvervation at the store, and through library studies. Using the Waterfall methodology and the Blackbox testing, this research is focused on software functionally to ensure that all parts already tested and successfully executed.

Titik Café : Aplikasi Pencarian Café Menggunakan Metode Algoritma Ant Colony Kota Palangka Raya Berbasis Android Perdana, Ravi; Lestari, Ariesta; Nugrahaningsih, Nahumi
Journal of Information Technology and Computer Science Vol. 2 No. 2 (2022): JOINTECOMS : Journal of Information Technology and Computer Science
Publisher : Universitas Palangka Raya

The increasing number of café in Palangka Raya makes people especially newcomers confused about choosing the right café to visit. In the end, sometimes people are stuck getting a cafe that is far from where they are, even though it turns out that there is a cafe they want that is close to them and also for newcomers to the city of Palangka Raya. This happens because currently, searching for cafes or restaurants is still limited to information from Google Maps only.Based on these problems, a system that can provide information is needed and is facilitated by finding the location of the café with the closest distance from the location of the application user. This study aims to build an android application that can display information and the location of a café that is presented in the form of an android application.This research applies the Ant Colony algorithm, as well as Google Maps and Mapbox as a digital map builder, and is developed based on Android. Making this application using the waterfall method, at the analysis stage the analysis stage is carried out on the things needed for making the application. At the design stage, program modeling is described in Data Flow Diagrams (DFD). Then at the coding stage of making this application using Android Studio, and testing this application using the black box method

Sistem Informasi Penyewaan Lapangan Futsal Indoor Se-Kota Palangka Raya Berbasis Website Vianus, Rezaski Yoan; Nugrahaningsih, Nahumi
Journal of Information Technology and Computer Science Vol. 2 No. 2 (2022): JOINTECOMS : Journal of Information Technology and Computer Science
Publisher : Universitas Palangka Raya

The use of computers and mobile phones in the field of ordering and in the Internet world is growing, because humans are always looking for new breakthroughs in the development of a remote information system that provides access rights and detailed information for the community. Therefore, it is necessary to have a futsal field booking website. so by making this website it can be a means for futsal field entrepreneurs in the field of field rental in Palangkaraya to develop their business. Therefore, a web-based futsal field ordering information system is needed to provide convenience to the public. Apart from being a medium to promote the field, this information system makes it easy for the public to order the desired futsal field. This Futsal Universe application with this system is expected that customers can see the latest information on field rentals on the Futsal Universe Website if there is an empty or full field, they can see it without having to go to the field directly and can place an order anytime and anywhere without having to go to the field

Co-Authors Abertun Sagit Sahay Ade Chandra Adi Novari Chandra Adventus Panda Agus Sehatman Saragih Ariesta Lestari Ariesta Lestari Berkati, Axel Deddy Ronaldo Dwiani Septiana Edy Pratamajaya Felicia Sylviana Gabriel Dwi Putra Krisma Rusan Gosal, Silvia Siladevi Jakkirahman , Jakkirahman Julian, Innosensius Licantik Licantik, Licantik Mentari, Amy Olivia Milenia, Tiara Sari Novianti, Angellita Perdana, Ravi Pisces Adam Putu Atika Ronaldo, Deddy Vianus, Rezaski Yoan Wahyu Saputra

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