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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Register: Jurnal Ilmiah Teknologi Sistem Informasi JOIV : International Journal on Informatics Visualization Knowledge Engineering and Data Science ILKOM Jurnal Ilmiah WIDYA LAKSANA Logic : Jurnal Rancang Bangun dan Teknologi Jurnal Teknologi Informasi dan Pendidikan Jurnal Praksis dan Dedikasi Sosial Journal of Applied Data Sciences Pusaka : Journal of Tourism, Hospitality, Travel and Business Event Dharma: Jurnal Pengabdian Masyarakat
I Nyoman Gede Arya Astawa
Politeknik Negeri Bali
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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The Impact of Color Space and Intensity Normalization to Face Detection Performance I Nyoman Gede Arya Astawa; I Ketut Gede Darma Putra; I Made Sudarma; Rukmi Sari Hartati
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 4: December 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i4.6718

Abstract

In this study, human face detection have been widely conducted and it is still interesting to be research. In this research, strong impact of color space for face i.e., many and multi faces detection by using YIQ, YCbCr, HSV, HSL, CIELAB, and CIELUV are proposed. In this experiment, intensity normality method in one of the color space channel and tested the faces using Android based have been developed. The faces multi image datasets came from social media, mobile phone and digital camera. In this experiment, the color space YCbCr percentage value with the image initial value detection before processing are 67.15%, 75.00%, and 64.58% have been reached. Then, after the normalization process are 83.21%, 87.12%, and 80.21% have been increased. Furthermore, this study showed that color space of YCbCr have reached improvement percentage
PERBANDINGAN METODE JARINGAN SARAF TIRUAN PADA PERAMALAN CURAH HUJAN I Putu Sutawinaya; I Nyoman Gede Arya Astawa; Ni Kadek Dessy Hariyanti
Logic : Jurnal Rancang Bangun dan Teknologi Vol 17 No 2 (2017): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.547 KB) | DOI: 10.31940/logic.v17i2.542

Abstract

Intensitas curah hujan dikatakan besar apabila hujan lebat dan kondisi ini sangat berbahaya karena dapat menimbulkan banjir dan longsor, untuk itu perlu dilakukan peramalan untuk memperkirakan seberapa besar curah hujan yang akan datang. Metode Jaringan Saraf Tiruan (JST) adalah paradigma pengolahan informasi yang terinspirasi oleh sistem saraf secara biologis, seperti proses informasi pada otak manusia. Metode JST yang digunakan dalam meramal curah hujan pada penelitian ini adalah metode Backpropagation dan Adaline. Hasil peramalan dengan tingkat kesalahan yang lebih kecil dari kedua metode JST tersebut akan menunjukkan bahwa metode tersebut baik digunakan untuk peramalan. Berdasarkan pengujian yang telah dilakukan pada iterasi 1000 dihasilkan Root Mean Square Error (RMSE) dengan metode Backpropagation sebesar 0.0435, sedangkan Adaline sebesar 0.0674. Berdasarkan perbandingan nilai RMSE metode Backpropagation lebih baik dibandingkan dengan metode Adaline
Roboswab: A Covid-19 Thermal Imaging Detector Based on Oral and Facial Temperatures I Nyoman Gede Arya Astawa; I.D.G Ary Subagia; Felipe P. Vista IV; IGAK Cathur Adhi; I Made Ari Dwi Suta Atmaja
JOIV : International Journal on Informatics Visualization Vol 7, No 1 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.1.1505

Abstract

The SARS-CoV-2 virus has been the precursor of the coronavirus disease (COVID-19). The symptoms of COVID-19 begin with the common cold and then become very severe, such as those of Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Currently, polymerase chain reaction (PCR) is used to detect COVID-19 accurately, but it causes some side effects to the patient when the test is performed. Therefore, the proposed "Roboswab" was developed that uses thermal imaging to measure non-contact facial and oral temperature. This study focuses on the performance of the proposed equipment in measuring facial and oral temperature from various distances. Face detection also involves checking whether the subject is wearing a mask or not. Image processing methods with thermal imaging and robotic manipulators are integrated into a contact-free detector that is inexpensive, accurate, and painless. This research has successfully detected masked or non-masked faces and accurately detected facial temperature. The results showed that the accurate measurement of facial temperature with a mask is 90% with an error of +/- 0.05%, while it was 100% without a mask. On the other hand, the oral temperature was measured with 97% accuracy and an error of less than 5%. The optimal distance of the Roboswab to the face for measuring temperature is an average of 60 cm. The Roboswab tool equipped with masked or non-masked face detection can be used for early detection of COVID-19 without direct contact with patients.
TKJ and Graphic Design Training for Student Strengthening Facing UKK at SMK PGRI Amlapura Putu Gde Sukarata; I Nyoman Gede Arya Astawa; Gusti Nyoman Ayu Sukerti; I Wayan Suasnawa; I Putu Bagus Arya Pradnaya
Dharma: Jurnal Pengabdian Masyarakat Vol 4, No 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/dlppm.v4i1.8409

Abstract

The Vocational High School of the Indonesian Teachers Association (SMK PGRI) Amlapura is a vocational school at the upper middle level that has four majors namely, hospitality, catering, computer network and multimedia engineering. Located in Amlapura City, Karangasem Regency, Bali Province. Based on the vocational education that is carried out, all students studying in vocational schools are required to take the expertise competency test (UKK) of each field that is in demand in accordance with the majors they choose. This UKK is carried out nationally and is a national practical test. This is what distinguishes an educational model that exists at the high school level. As for facing the National Practice Examination, schools generally provide assistance for their students.Bali State Polytechnic in this case implementing Tri Dharma Higher Education such as teaching, research and service. One of the Tri Dharma of the tertiary institution is the Commander of the Commander, where the community service aims to play a role and participate in building the welfare of the community. This service activity is carried out in accordance with existing academic culture.Bali State Polytechnic Department of Electrical Engineering Information Management Study Program is willing to accompany the students of SMK PGRI Amlapura in terms of preparing themselves to take part in UKK. This mentoring activity is a service activity. Assistance provided specifically to UKK Computer Network Engineering Program and UKK Multimedia Program. Activities in the form of exposure in theory and direct practice. The continuation of assistance is also done using WhatsApp Group media.
IMPLEMENTASI CCTV ONLINE UNTUK MENINGKATKAN PEMANTAUAN FASILITAS WARGA BANJAR SAMPALAN Rudiastari, Elina; Atmaja, I Made Ari Dwi Suta; Bawa, I Gusti Ngurah Bagus Catur; Indah, Komang Ayu Triana; Sukerti, Gusti Nyoman Ayu; Astawa, I Nyoman Gede Arya
Jurnal Praksis dan Dedikasi Sosial (JPDS) Vol 7, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um032v7i1p77-84

Abstract

IMPLEMENTATION OF ONLINE CCTV TO IMPROVE MONITORING OF BANJAR SAMPALAN RESIDENTS' FACILITIESSampalan Hamlet is a tourist destination where many facilities and infrastructure have begun to be built. The problems faced by the Sampalan Traditional Banjar are that there is no supervision of the routes around the Banjar area, there is no documentary evidence that can be used to analyze accidents that occur around the Banjar, there is no supervision to avoid acts of theft at the temple and there is no supervision of the social activities of residents which was carried out in Banjar. The solution offered in this community service activity for the problems experienced is the installation of CCTV. This service activity aims to help access monitoring and supervision of the Banjar area to increase the security and comfort of residents and visiting tourists. This method of implementing community service activities is implemented into three main stages, namely preparation, implementation and evaluation. The results of the evaluation through a questionnaire resulted in 71.4 percent of residents stating that the installed CCTV was very useful, and 50 percent of residents stated that the presence of CCTV greatly facilitated monitoring and supervision around the Banjar.Dusun Sampalan merupakan destinasi wisata dimana fasilitas serta infrastruktur sudah mulai banyak dibangun. Permasalahan yang dihadapi Banjar Adat Sampalan yaitu belum adanya pengawasan terhadap jalur disekitar areal Banjar, tidak adanya bukti dokumentasi yang dapat digunakan untuk menganalisa peristiwa kecelakaan yang terjadi di sekitar Banjar, tidak adanya pengawasan untuk menghindari tindakan pencurian di pura serta tidak adanya pengawasan terhadap aktivitas sosial warga yang dilakukan di Banjar. Solusi yang ditawarkan dalam kegiatan pengabdian kepada masyarakat ini untuk permasalahan yang dialami adalah pemasangan CCTV. Tujuan dari kegiatan pengabdian ini adalah membantu akses monitoring dan pengawasan areal Banjar sehingga meningkatkan keamanan dan kenyamanan warga serta wisatawan yang berkunjung. Metode pelaksanaan kegiatan pengabdian kepada masyarakat ini diimplementasikan menjadi tiga tahapan utama yaitu persiapan, pelaksanaan dan evaluasi. Hasil evaluasi melalui kuisioner menghasilkan 71,4 persen warga menyatakan CCTV yang terpasang tersebut sangat bermanfaat serta 50 persen warga menyatakan bahwa adanya CCTV sangat mempermudah monitoring dan pengawasan di sekitar Banjar.
Comparison of the Packet Wavelet Transform Method for Medical Image Compression Atmaja, I Made Ari Dwi Suta; Triadi, Wilfridus Bambang; Astawa, I Nyoman Gede Arya; Radhitya, Made Leo
JOIV : International Journal on Informatics Visualization Vol 7, No 4 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.7.4.1732

Abstract

Medical images are often used for educational, analytical, and medical diagnostic purposes. Medical image data requires large amounts of storage on computers. Three types of codecs, namely Haar, Daubechies, and Biorthogonal, were used in this study. This study aims to find the best wavelet method of the three tested wavelet methods (Haar, Daubechies, and Biorthogonal). This study uses medical images representing USG and CT-scan images as testing data. The first test is carried out by comparing the threshold ratio. Three threshold values are used, namely 30, 40, and 50. The second test looks for PSNR values with different thresholds. The third test looks for a comparison of the rate (image size) to the PSSR value. The final test is to find each medical image's compression and decompression times. The first compression ratio test results on both medical images showed that CT scan images on Haar and Biorthogonal wavelets were the best, with an average compression ratio of 40.76% and a PSNR of 33.77. The PSNR obtained is also getting more significant for testing with a larger image size. The average compression time is 0.52 seconds, and the decompression time is 2.27 seconds. Based on the test results, this study recommends that the Daubechies wavelet method is very good for compression, which is 0.51 seconds, and the Biorthogonal wavelet method is very good for medical image decompression, which is 1.69 seconds.
Comparison of MobileNet and VGG16 CNN Architectures for Web-based Starfish Species Identification System Latumakulita, Luther Alexander; Paat, Frangky J.; Saroyo, Saroyo; Karim, Irwan; Astawa, I Nyoman Gede Arya; Sirait, Hasanuddin
Journal of Applied Data Sciences Vol 5, No 4: DECEMBER 2024
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v5i4.456

Abstract

Bunaken Marine Park (BMP) is famous for its rich marine biodiversity. BMP is an asset for the marine tourism industry of the Manado city government, and the North Sulawesi Province of Indonesia needs to be strengthened. This research aims to build a web-based intelligent system using a convolutional neural network (CNN) to identify starfish species to initiate developing a media center marine biota identification system of BMP. Two CNN architectures, namely MobileNet and VGG16, were conducted to produce identification models. The first stage carried out a training process on 1800 starfish image data and then evaluated using the 5-fold cross-validation technique. Validation results show that MobileNet is superior to the VGG16 architecture by achieving validation accuracy of 100% for each fold while VGG16 produces validation accuracy in the range of 94% to 100%. On the other hand, in the second stage of model testing, it was found that VGG16 worked better than MobileNet in identifying 200 new data. The Best Model produced by VGG16 achieved testing accuracy of 100% while MobileNet produced 99.5%. However, stability analysis of the identification models produced by both architectures shows that MobileNet has relatively small loss values ranging from 0.00069325 to 0.00214802 as well as smaller standard deviation values of 0.27 compared to 0.61 produced by VGG16. These findings indicate MobileNet is more stable in carrying out identification work compared to VGG16 of, thus the best model provided by MobileNet is taken to deploy in the web platform which is created using the Python flask framework. The proposed system can be used to strengthen the marine tourism industry as a media center of educational marine biota using deep learning approaches.
APLIKASI DIGITALISASI LAYANAN SURAT-MENYURAT UNTUK MENINGKATAN LAYANAN ADMINISTRASI KANTOR DESA Astawa, I Nyoman Gede Arya; Manuaba, Ida Bagus Putra; Atmaja, I Made Ari Dwi Suta Atmaja; Sukarata, I Putu Gde
JURNAL WIDYA LAKSANA Vol 12 No 2 (2023)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jwl.v12i2.61871

Abstract

Pelayanan surat-menyurat merupakan bagian dari kualitas kinerja pemerintah desa, dengan memberikan pelayanan surat-menyurat yang efektif dan efisien mampu meningkatkan kepuasan masyarakat terhadap administrasi desa. Saat ini pengelolaan pengajuan pembuatan surat-menyurat khususnya surat keterangan di Kantor Desa Adat Sibetan masih dilakukan dengan cara konvensional, sehingga menyebabkan beberapa permasalahan yang muncul. antara lain: proses pengajuan yang memerlukan waktu relatif lama, pengecekan status surat yang tidak efektif, data penduduk yang tidak terdokumentasi dengan baik. Untuk mengatasi permasalahan tersebut kegiatan pengabdian difokuskan pada pembuatan aplikasi digitalisasi surat-menyurat pada Kantor Desa Sibetan. Setelah aplikasi siap dan dihosting pada website maka dilakukan sosialisasi kepada warga Desa Sibetan. Evaluasi dari pengabdian masyarakat ini dilakukan dengan dua cara, pertama adalah mengevaluasi website menggunakan aplikasi tool yaitu Pagespeed Insights dan evaluasi kedua adalah evaluasi kebermanfaatan dan output hasil surat-menyurat menggunakan kuisioner. Hasil evaluasi pertama menunjukkan nilai diagnosa kinerja bila dijalankan pada dekstop rata-rata sebesar 92,25 dan pada perangkat mobile/smartphone adalah rata sebesar 81,5. Evaluasi kedua menggunakan kuisioner yang diisi oleh peserta dalam sosialisasi menunjukkan bahwa aplikasi layanan surat-menyurat sangat bermanfaat dan bila diimplementasikan sangat mudah digunakan dan sangat efesien dalam mengurus surat-surat di Kantor Desa Sibetan.
Green Accounting Practice Model for Tourism Villages in Support of Sustainable Tourism in Bali Astawa, I Putu; Arya Astawa, I Nyoman Gede; Ardina, Cening; Novandra Asta, Ngr. Putu Raka
Pusaka : Journal of Tourism, Hospitality, Travel and Business Event Vol. 7 No. 1 (2025): February-Juli
Publisher : Politeknik Pariwisata Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33649/padaidi.v1i2.344

Abstract

Tourism is currently in the spotlight because the massive use of natural resources is rumored to damage the order of life in the future. Various efforts are made for tourism business actors to maintain sustainability so that this nature remains sustainable. Information on sustainability activities is very important to be known by all parties to legitimize the implementation of sustainability. This research provides information on the implementation of sustainability practices in tourist villages with the main objective of designing a financial transaction model based on green accounting practices that have not been widely practiced in a tourist destination in the village. A qualitative approach was used to dig deeper into the data from five informants of tourist village managers who have implemented sustainability. The results of the study explain that transactions related to the environment are recorded, recognition of costs incurred, measurement, recording to accounts, then presented and detailed disclosure of environmental costs. In addition, it was found that environmental prevention costs, environmental detection costs and internal failure costs in strengthening sustainable tourism. The results of the study contribute to accounting science in revealing an environmental cost aimed at supporting sustainable tourism. This condition is a new way of maintaining sustainability oriented on financial transactions. This research can be developed quantitatively in strengthening the green accounting model associated with sustainable tourism.
Ontology Modeling for Subak Knowledge Management System Hariyanti, Ni Kadek Dessy; Linawati, Linawati; Oka Widyantara, I Made; Sukadarmika, Gede; Arya Astawa, I Nyoman Gede; Kamarudin, Nur Diyana
JOIV : International Journal on Informatics Visualization Vol 9, No 2 (2025)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.9.2.3386

Abstract

Subak, as a Balinese traditional agricultural organization, has knowledge of cultural heritage, including both explicit and tacit elements. This research aimed to develop ontology knowledge model for the digital preservation of Subak culture in the form of Knowledge Management System (KMS). The development of model was based on three main stages, including requirement analysis, ontology development, and ontology assessments. Requirement analysis included data collection through field observations, in-depth interviews, and document analysis, while ontology development consisted of hierarchical classes, object and data properties, as well as individual entities. Furthermore, ontology assessments were the stage of evaluating and testing the resulting ontology. Protégé software was used to apply ontology model, generating Ontograph visualizations and producing Ontology Web Language (OWL). Validation was carried out using both Ontology Quality Analysis (OntoQA) and expert comments. The evaluation results showed a Relationship Richness (RR) value of 0.8, an Inheritance Richness (IR) value of 0.78, and an Attribute Richness (AR) value of 3.89, showing that ontology captured a comprehensive and representative body of knowledge. Expert comments stated that ontology model created was worthy of being used to represent Subak knowledge as a form of cultural preservation. The developed Subak ontology could serve as a foundational knowledge base for further research in related fields such as agricultural management, social organization, and cultural preservation.
Co-Authors Agung Sulistyo Aji Prasetya Wibawa Andika Dwiyanto, Felix Ardina, Cening Ari Dwi Suta Atmaja, I Made Atmaja, I Made Ari Dwi Suta Atmaja, I Made Ari Dwi Suta Atmaja Ayu Sukerti, Gusti Nyoman Bagus Catur Bawa, I Gusti Ngurah Bawa, I Gusti Ngurah Bagus Catur Dessy Hariyanti, NK Didik Dwi Prasetya Dwiyanto, Felix Andika Fachrul Kurniawan Fadhli Almu’iini Ahda Fajar Purnama Felipe P. Vista IV Felix Andika Dwiyanto Frangky J. Paat Gede Sukadarmika Gusti Nyoman Ayu Sukerti Gusti Nyoman Ayu Sukerti, Gusti Nyoman Ayu I Dewa Gede Ary Subagia I ketut Gede Darma Putra I Made Oka Widyantara I MADE SUDARMA I Putu Astawa I Putu Bagus Arya Pradnaya I Putu Bagus Arya Pradnyana I Putu Sutawinaya I Putu Suwidnyana Putra I Wayan Budi Sentana I Wayan Budi Sentana, I Wayan Budi I Wayan Raka Ardana I Wayan Suasnawa I Wayan Suasnawa Ida Bagus Putra Manuaba IGAK Cathur Adhi Irawan, Novta Danyel Islam, Noorul Jabari, Nida Kamarudin, Nur Diyana Karim, Irwan Komang Ayu Triana Indah Linawati Linawati Luh Gede Putri Suardani Luther Latumakulita Mairi, Vitrail Gloria Ngr. Putu Raka Novandra Asta Pradnyana, I Putu Bagus Arya Purnama, Ida Bagus Irawan Putu Gde Sukarata Radhitya, Made Leo Rudiastari, Elina Rukmi Sari Hartati Saroyo Saroyo Sirait, Hasanuddin Suasnawa, I Wayan Sukarata, I Putu Gde Sulistyo, Danang Arbian Sutoko, Sutoko Triadi, Wilfridus Bambang Triana Indah, Komang Ayu Yusriel Ardian