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All Journal International Journal of Electrical and Computer Engineering IAES International Journal of Artificial Intelligence (IJ-AI) TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Teknologi Informasi dan Ilmu Komputer Journal of Information Technology and Computer Science Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Indonesian Journal of Electrical Engineering and Computer Science Bubungan Tinggi: Jurnal Pengabdian Masyarakat Jurnal Nasional Teknik Elektro dan Teknologi Informasi Edu Komputika Journal

Komang Candra Brata

Universitas Brawijaya

Author-ID : 243317

Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Social Sciences Other

Published : 167 Documents Claim Missing Document

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Articles

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Location-Based Augmented Reality Information for Bus Route Planning System Komang Candra Brata; Deron Liang; Sholeh Hadi Pramono
International Journal of Electrical and Computer Engineering (IJECE) Vol 5, No 1: February 2015
Publisher : Institute of Advanced Engineering and Science

Bus Route Planner applications will unfold their full potential when bus passengers are enabled to get information about the shortest path route, make a travel plan and get the correct buses in order to reduce the travel time. However, all these information are provided in text based and map view. It is difficult to understand them for the person who does not know place in the map. This paper describes the android base application of Augmented Reality (AR) that has feature to support the action of a bus user in an innovative and dynamic ways by putting additional information layer on smart phone camera screen and give the instruction assistant that leading the user way to the nearest bus stop. The experimental results show that, the overall functional of proposed application can be run well in various type of Android smart phone. When compared with similar bus traveling applications, the proposed application works more efficient.

User experience improvement of japanese language mobile learning application through mental model and A/B testing Komang Candra Brata; Adam Hendra Brata
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 3: June 2020
Publisher : Institute of Advanced Engineering and Science

Advances in smartphone technology have led to the strong emergence of mobile learning (m-learning) on the market to support foreign language learning purposes, especially for the Japanese language. No matter what kind of m-learning application, their goal should help learners to learn the Japanese language independently. However, popular Japanese m-learning applications only accommodate on enhancing reading, vocabulary and writing ability so that user experience issues are still prevalent and may affect the learning outcome. In the context of user experience, usability is one of the essential factors in mobile application development to determine the level of the application’s user experience. In this paper, we advocate for a user experience improvement by using the mental model and A/B testing. The mental model is used to reflect the user’s inner thinking mode. A comparative approach was used to investigate the performance of 20 high-grade students with homogenous backgrounds and coursework. User experience level was measured based on the usability approach on pragmatic quality and hedonic quality like effectiveness (success rate of task completion), efficiency (task completion time) and satisfaction. The results then compared with an existing Japanese m-learning to gather the insight of improvement of our proposed method. Experimental results show that both m-learning versions proved can enhance learner performance in pragmatic attributes. Nevertheless, the study also reveals that an m-learning that employs the conversational mental model in the learning process is more valued by participants in hedonic qualities. Mean that the proposed m-learning which is developed with the mental model consideration and designed using A/B testing is able to provide conversational learning experience intuitively.

An effective approach to develop location-based augmented reality information support Komang Candra Brata; Deron Liang
International Journal of Electrical and Computer Engineering (IJECE) Vol 9, No 4: August 2019
Publisher : Institute of Advanced Engineering and Science

Using location-based augmented reality (AR) for pedestrian navigation can greatly improve user action to reduce the travel time. Pedestrian navigation differs in many ways from the conventional navigation system used in a car or other vehicles. A major issue with using location-based AR for navigation to a specific landmark is their quality of usability, especially if the active screen is overcrowded with the augmented POI markers which were overlap each other at the same time. This paper describes the user journey map approach that led to new insights about how users were using location-based AR for navigation. These insights led to a deep understanding of challenges that user must face when using location-based AR application for pedestrian navigation purpose, and more generally, they helped the development team to appreciate the variety of user experience in software requirement specification phase. To prove our concept, a prototype of intuitive location-based AR was built to be compared with existing standard-location based AR. The user evaluation results reveal that the overall functional requirements which are gathered from user journey have same level of success rate criteria when compared with standard location-based AR. Nevertheless, the field study participants highlighted the extended features in our prototype could significantly enhance the user action on locating the right object in particular place when compared with standard location-based AR application (proved with the required time).

Comparative study of user experience on mobile pedestrian navigation between digital map interface and location-based augmented reality Komang Candra Brata; Deron Liang
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 2: April 2020
Publisher : Institute of Advanced Engineering and Science

Fast-paced mobile technology development has permitted augmented reality experiences to be delivered on mobile pedestrian navigation context. The fact that the more prevalent of this technology commonly will substituting the digital map visualization to present the geo-location information is still debatable. This paper comprises a report on a field study comparing about user experience when interacting with different modes of mobile electronic assistance in the context of pedestrian navigation interfaces which utilize location-based augmented reality (AR) and two-dimensional digital map to visualize the points of interest (POIs) location in the vicinity of the user. The study was conducted with two subsequent experiments in the Zhongli District, Taoyuan City, Taiwan. The study involved 10 participants aged between 22 and 28 years with different experiences in using smartphones and navigation systems. Navigation performance was measured based on a usability approach on pragmatic quality and hedonic quality like effectiveness (success rate of task completion), efficiency (task completion time) and satisfaction in real outdoor conditions. The evaluation findings have been cross-checked with the user’s personal comments. We aim at eliciting knowledge about user requirements related to mobile pedestrian interfaces and evaluating user experience from pragmatic and hedonic viewpoints. Results show that in the context of pedestrian navigation, digital map interfaces lead to significantly better navigation performance in pragmatic attributes in comparison to AR interfaces. Nevertheless, the study also reveals that location-based AR is more valued by participants in hedonic qualities and overall performance.

A new perspective of refractive error calculation with mobile application Komang Candra Brata; Mukhammad Sharif Hidayatulloh; Lutfi Fanani; Adam Hendra Brata
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 5: October 2020
Publisher : Institute of Advanced Engineering and Science

In many situations, not standardized and limited access to eye health care in several regions of Indonesia becomes the main challenge for myopia patients to measure and monitor their current refractive error condition. Many apps were proposed to provide low-cost alternative measurement tools rather than expensive tools such as Phoropter with Snellen chart and Retinoscopy, but still, those apps need an Internet connection and manually complex steps to operate. These conditions make myopia patients reluctant to use this kind of service. In this regard, we propose an intuitive diopter level measurement app based on mobile application setup, which implements the concept of measure the user face to smartphone screen distance for the rapid diopter calculation processes and at the same time provides a low-cost alternative refractive measurement tool. This paper highlights our experiences when developing a mobile application that can help patients with myopia measuring their blur line distances and evaluate their diopter levels independently. We conduct a number of human trials with the device on a controlled environment to demonstrate the ability of the proposed app to measure the diopter level. The experimental results show that the proposed app is quite successful in measuring the diopter level of myopia patients with a relatively small range of calculation errors compared to optometrist measurement results.

An alternative m-learning scoring approach to automatically evaluate Iqro’s pronunciation based on pitch, volume, and rhythm features Komang Candra Brata; Mohamad Handy Nugraha; Adam Hendra Brata
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 5: October 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i5.pp5313-5320

The Iqro’ has been proven as an effective method to improve literacy for reading Hijaiyah letters which are the fundamental skill for reading the Qur’an. The Iqro method relies on a mentor to evaluate the accuracy of the student’s pronunciation of the Hijaiyah letters. With the advancement of mobile technology, many mobile apps are available to assist the learning process. However, the existing solution that is available on the market only provides a one-way learning experience where users only focus on enhancing vocabulary, writing, and reading ability with a simple true-false assessment. Although enhancing the vocabulary and reading ability is important, training the correct Makhraj (Arabic pronunciation) is also essential in fundamental Hijaiyah learning. This paper presents the feasibility investigation of the usage of the pitch, volume, and rhythm as the more comprehensive audio assessment parameters in the voice recognition module to evaluate the student's ability to pronounce the Hijaiyah letter in an m-learning implementation. Instead of just presenting the true-false output, the proposed method will calculate the Makhraj correctness in the range 0 to 100. Experimental results with 10 respondents show that the sample correlation coefficient using Pearson between a manual assessment by Ustaz and the application result for Iqro’ level 1 is 0.51 which means this approach is acceptable for future implementation.

Co-Authors Abdul Ghoniy Nur Chasana Abdurrahman Diewa Prakarsa Abyan Setia Asa Putra Achmad Arif Kusamiaji Achmad Arwan Achmad Igaz Falatehan Adam Hendra Brata Adam Hendra Brata Ade Armawi Paypas Adena Nioga Admaja Dwi Herlambang Agi Putra Kharisma Agus Purnomo Ruminto Ahmad Afif Supianto Ahmad Afif Supianto Ahmad Afif Supianto Ahmad Wahid Rifa'i Ahmad Wildan Rizaldy Ahmadan Mukhtarif Akbar, Muhammad Aminul Akhmad Rizqi Azhari Albilaga Linggra Pradana Alfin Hidayat Darmawan Alfonsus Avianto Chandrawan Alif Andarta Al Falah Amir Saqib Azhardika Amira Fauzia Rahmah Andri Suranta Ginting Angel Anggina Nasution Annisa Novy Kholiyanti Arka Fadila Yasa Arya Yudha Mahendra Arya Yudha Mahendra Aryo Pinandito Azka Muhammad Hanisa Bayu Reza Gunawan Buce Trias Hanggara Candra , Ersya Nadia Charles Sanggalangi Chavindro Bunga Mardiasto Danang Trisdiana Putra Denny Sagita Rusdianto Deron Liang Dewi, Ratih Kartika Dicky Wahyudi Dinda Hudaifa Djoko Pramono Dwi Yovan Harjananto Eka Iqbal Virgiawan Ekklesioga Kaban Eko Prasetyo Lukman Nur Hakim Erastus Mauliate Erika Ramadhanty Eriq Muh. Adams Jonemaro Fadhil Rizqullah Saniputra Fadhyl Farhan Alghifari Fadhyl Farhan Alghifari Fais Al Huda Faishal Pradipta Astungkoro Faizatul Amalia Fajar Pradana Fara Nur Azizah Fatimah Azzahra Fatkhur Rosyad Fatur Rahnat Ariyan Fatwa Ramdani, Fatwa Felinda Gracia Lubis Ferlie Deanada Effendi Fiqih Yanfirdaus Afandi Fitrantika Diashafira Fitriyah, Hurriyatul Gema Isya Luthfi Prathama Ghifari Galih Ramadhan Ghozi Akbar Wicaksono Ginanjar Wisnu Ifan A. Ginanjar Wisnu Ifan Agusti Giri Nugroho Hafidz Aulia Setijadi Hafiz Maulana Hanifah Muslimah Az-Zahra Hanifah Muslimah Az-Zahra, Hanifah Muslimah Harun Christian Bentro Hendrikus Dimas Samara Herman Tolle Hernawan, Zildan Isrezkinurahman Heru Putra Hilman Hamdani Hilyah Nadhirah Ignatius Daniel Y.T.A. Ginting Ilham Rachmad Zunaidi Ilmam Achmadiarsyi Imam Safi'i Ingke Ryastratika Milenia Efendi Iqbal Setya Nurfimansyah Ishak Robin Simorangkir Ismail Rabbanii Ismiarta Aknuranda Januari Arka Jemal Rashidi Jeriko Hosea Julanto Jimmy Sohaga Dachi Joang Pratama Achmad Jodie Rizky Hidayat Joel Johanes Cirio Joshua Dika Khoirul Abdul Jamil Kusworo, Muhammad Aziz Linda Shintya Sari Lutfi Fanani Lutfi Fanani Lutfi Fanani M Faizal Putra Pradana M. Ali Fauzi M. Isrofil Dwi Khusnanta M. Syafiul Umam Mahardeka Tri Ananta Mahardeka Tri Ananta, Mahardeka Tri Maharoni Hendra Pradikja Meita Putri Aidha Mochamad Ilham Irwinansyah Mohamad Handy Nugraha Mohamad Handy Nugraha Mohammad Haikal Hasnain Mohammad Syaifudin Abdullah Muhamad Nabil Rabani Muhammad Abdul 'Alim Muhammad Abyan Safitra Muhammad Afif Fauzi Muhammad Aminul Akbar Muhammad Avied Bachmid Muhammad Enowato Muhammad Hasan Johan Alfarizi Muhammad Ilham Wibowo Muhammad Jauhari Jawara Perkasa Muhammad Lamkhil Bashor Muhammad Lavy Aunil Malik El Harisy Muhammad Naufal Dzikrullah Muhammad Rafsan Adhizar Muhammad Rizqi Rakha Aulia Muhammad Rizqinovniari Muhammad Salman Ramadhan Muhammad Satya Nugraha Muhammad Zaharuddin Mukhammad Sharif Hidayatulloh Mukhammad Sharif Hidayatulloh Nabila Nabila Nabila Nabila Nabila, Nabila Nike Wirahayu Cahyaningsih Niken Hendrakusma Wardani Noveria Anggraeni Fiaji Novrian, Irhamsyah Reva Nugraha, Irvan Rizki Nurizal Dwi Priandani Nurul Hidayat Nyoman Putra Utama Pangayoman, Wishnuadji Surya Prabowo, Muhammad Bintang Priska Suseta Prita Nur Rizky Faridiani Putra, Ananda Ilyasa Rachmad Soleh Rafiqah Majidah Rahman Rulli Arjiansa Ramadhan, Rigel Vibi Ramadhani Imam Khoiri Randy Indraswara Raras Kirana Amaranggana Rasyid Asis Perdana Ratih Kartika Dewi Reinhard Jonathan Silalahi Retno Indah Rokhmawati Revianda Amrullah Akbar Riekko Rahmat Rahardian Rio Donaroe Munthe Riswan Septriayadi Sianturi Riza Setiawan Robertus Dwi Ari Utomo Robihamanto Robihamanto Rr. Tasia Haniifah Rihadatul Aisy Ryan Sutawijaya Sabil Prihastomo Seputro Sabilatunnajah Sabilatunnajah Safier Yusuf Santi Yunika Sufiana Santi Yunika Sufiana Satrio Hadi Wijoyo Sigit Widodo Stefanus Anugrah Pribadi Surbakti, Osvaldo Rios Junior Swastika Akbar Umardani Syahshiyah Rohidah Tegar Yoga Prabawakusuma Tri Afirianto Tri Afirianto, Tri Utomo, Ibnu Najah Barlian Hadi Wahyu Septiadi Wanda Septia Dewi Lestari Welly Dian Astika Wornandes Michel Sinaga Yudha Akbar Pramana Zhafrant, Rifqi Hilmy Zulvarina, Prima

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Journal : International Journal of Electrical and Computer Engineering