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All Journal Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Journal of Computer Science and Informatics Engineering (J-Cosine) JURTEKSI Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Nasional Teknik Elektro dan Teknologi Informasi MATRIX : JURNAL MANAJEMEN TEKNOLOGI DAN INFORMATIKA Majalah Ilmiah Teknologi Elektro Ulil Albab Journal of Dedication in Community (JoDiC)
Komang Oka Saputra
Program Studi Teknik Elektro, Universitas Udayana
Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Journal : Journal of Computer Science and Informatics Engineering (J-Cosine)

 1 
Rancang Bangun Aplikasi Simulasi Dekorasi Ruangan dengan Memanfaatkan Teknologi Markerless Augmented Reality Putu Anggara Mahardika; I Made Arsa Suyadnya; Komang Oka Saputra
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 3 No 1 (2019): June 2019
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2256.93 KB) | DOI: 10.29303/jcosine.v3i1.238

Abstract

Markerless Augmented Reality (AR) is a technology that combines two-dimensional or three-dimensional virtual objects into a real environment and then projects these virtual objects in real time without the need for a special marker. In this research, the Markerless AR application will be used to simulate room decoration with 3-dimensional objects. This research was built using the Java programming language and using supporting applications namely Android Studio and Wikitude library. Based on the results of testing with the Black-box method, the overall functionality of the application has run well, besides testing also uses the System Usability Scale (SUS) method by giving questionnaires to 20 application users. The results of the System Usability Scale (SUS) test obtained an average score of 73.13. In grouping the SUS percentile score, the value of 73.13 is in Class C, wherein this assessment the application is acceptable and can be used easily by the user.
Comparison of Backpropagation Neural Network and Convolutional Neural Network on Handwriting Pattern Recognition A. A. SG. Mas Karunia Maharani; Komang Oka Saputra; Ni Made Ary Esta Dewi Wirastuti
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 6 No 1 (2022): June 2022
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcosine.v6i1.431

Abstract

Historical manuscripts are one of documents that important to be preserved because they contain a lot of information, one example of them is script as the historical documents . Historical document mostly still use handwriting in so many reserch. Currently, there are many research regarding the preservation of characters. One way of preservation that can be used is the digitization process. Digitizing’s process tanable by recognizing existing information using technology. The technology that can be used is machine learning. Handwriting is a complex case because of the many variations of these characters and the output of the author where variations of the author will produce different writings. The relevant fields for text and documents are Optical Chacarter Recognition (OCR) and handwriting recognition. There are several methods that can be used in the machine learning process, including Artificial Neural Network (ANN) and Convolutional Neural Network (CNN). Both of these methods are methods that can accept complex image input to be processed and recognized, therefore this method is highly recommended for processing handwriting.
Aplikasi Sistem Monitoring Pengairan Sawah Subak Berbasis Android Ni Made Ary Esta Dewi Wirastuti; Zaky Zamani Noor; Komang Oka Saputra
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 6 No 2 (2022): December 2022
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcosine.v6i2.449

Abstract

Subak is a group of farmers in Bali to manage rice fields irrigation. Farmers come directly to the rice fields which need time to monitor their fields irrigation so that it’s less efficient. Based on this, an Android-based subak irrigation monitoring application was designed using the flutter framework with subak culture system for monitoring farmers fields irrigation and using supporting application namely Android Studio. The result of this research is an Android application that can display the location of the rice fields that registered, successfully sends a high water request, successfully sends a request for registration of subak fields, and successfully reports damages in case of damages to the fields and also successfully retrieves data on the condition of rice fields whose data is taken from the Antares database. The Black-box testing and System usability scale (SUS) used in the Android application has been successfully run according to the given scenario and functions and also suitable for use by users because the result of SUS are above the average value that is 72.875.
Sistem Informasi Monitoring Pengairan Sawah Subak Berbasis WebGIS I Gusti Agung Anom Semara Putra; Ni Made Ary Esta Dewi Wirastuti; Komang Oka Saputra
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 6 No 2 (2022): December 2022
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcosine.v6i2.450

Abstract

Subak is a traditional organization owned by the Balinese people to manage rice field irrigation. In the process of irrigating the fields, subak administrators and farmers check the condition of the irrigation in the fields by directly coming to the location to check the condition of the water level in the fields, so it is time consuming and less efficient. The creation of a geographic information system is intended so that subak administrators and farmers know the water level of the fields and regulate irrigation without going to the fields. The geographic information system is built using the Laravel framework equipped with a map. The map was created with the Google Maps API with the aim of displaying the location of rice fields. The result of this research is a geographic information system that can monitor the height of rice fields and display data on a map. The information system can also receive sensor data and send configuration data to Antares. In black box testing, the information system has been running according to the functions and scenarios given. Based on the results of the System Usability Scale test, the application obtained a score of 76,125 which indicates the application is classified as good and can be accepted by the user.
Metode Potensial Untuk Menghitung Clock Skew I Gede Agus Aditya Putra Aditya; Komang Oka Saputra; Ni Made Ary Esta Dewi Wirastuti
Journal of Computer Science and Informatics Engineering (J-Cosine) Vol 6 No 2 (2022): December 2022
Publisher : Informatics Engineering Dept., Faculty of Engineering, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcosine.v6i2.459

Abstract

Some studies such as Aoki measure clock skew by filtering outliers by selecting the minimum offset that is collected using linear regression to calculate the slope of the accumulated minimum offset. Huang who uses the QPM (Quick Piecewise Minimum) algorithm to calculate the skew of the minimum offset at the beginning and end of the collected offsets and Moon's research that uses the LPA (Linear Programming Algorithm) algorithm which determines the clock skew of the line gradient that is below the offset. In addition, there are several methods that have the potential to be used in measuring clock skew including ant colony, bee colony, particle swarm, and also genetic algorithm. From these several methods, one method that has potential as a method that can be used for measuring clock skew will be selected. The method that can be used is particle swarm optimization because it is considered more efficient and flexible and easy to implement with few parameters used.
Co-Authors A. A. SG. Mas Karunia Maharani A.A Ngurah Amrita Abd. Kholiq Aggry Saputra Agma Tinoe Mauludy Agus Anwar Eka Wahyudi Anak Agung Gede Oka Kessawa Adnyana Anak Agung Gede Oka Kessawa Adnyana Azra Ariel Azmir Azra Ariel Azmir Bhaskara, I Made Adi Darma Kotama, I Nyoman Debbi Irfan Mudhoep Dewa Made Wiharta Duman Care Khrisne Gde Brahupadhya Subiksa Gede Iga Wilhamdika Gede Sukadarmika I G. A. K. Diafari Djuni Hartawan I Gede Agus Aditya Putra I Gede Agus Aditya Putra Aditya I Gusti Agung Anom Semara Putra I Gusti Ngurah Aditya Dharma I Gusti Ngurah Agung Widhiananda I Ketut Citra Adi Putra I Komang Dharmendra I Made Adi Bhaskara I Made Arsa Suyadnya I Made Bagus Wiradivka Laksa Wibawa I Made Oka Widyantara I Made Surya Sukma Mahardhika I N Satya Kumara I Nyoman Bernadus I Nyoman Gunantara I Wayan Andis Indrawan I Wayan Surya Pramana Ida Bagus A. Swamardika Imam Sucahyo Iskandar, Adi Panca Saputra Kadek Darmaastawan Kessawa Adnyana Gede Oka Anak Agung Kheri Arionadi Shobirin Komang Budiarta Leovin Leovin Linawati Linawati Made Dinda Pradnya Pramita Made Dinda Pradnya Pramita Made Dwi Mulyawan Made Dwi Mulyawan Made Sudarma Mita Anggaryani Mohammad Aryo Wibowo Muhammad Anshari Muhammad Habibbulloh Muhammad Ridwan Satrio Ni Luh Adriani Ni Made Ary Esta Dewi Wirastuti Ni Putu Sri Merta Suryani Nola Verli Herlian Nyoman Pramaita Nyoman Putra Sastra Philipus Novenando Mamang Weking Pratolo Rahardjo Putri Suardani Putri Suardani Putu Anggara Mahardika Putu Arya Mertasana Putu Bagus Hendrayana Surya Putu Bagus Indra Sukadiana Putra Putu Ratih Devyanti Putu Risanti Iswardani Putu Sri Merta Suryani Putu Vendi Arya Wibawa Rahadi, Putu Suta Adya Dharma Rezky Setyawan Rifky Lana Rahardian Risqa Purma Pratama Rukmi Sari Hartati Satriawan, Muhammad Wayan Gede Ariastina Widyadi Setiawan Yoga Divayana Yogha Pramana Zaky Zamani Noor Zulfachmi, Zulfachmi “Prama Ade Prayitno