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All Journal Journal of Applied Geospatial Information Journal of Intelligent Decision Support System (IDSS) Jurnal Mandiri IT Jurnal Minfo Polgan (JMP)
Simangunsong, Juanto
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Engineering Environmental Science Library & Information Science Mathematics Physics Social Sciences

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Design of Digital Mobile Application for Marine and Coastal Observation in Northern part of Sumatra Matondang, Aprima A.; Simanjuntak, Mutiara; Simangunsong, Juanto
Journal of Applied Geospatial Information Vol. 8 No. 2 (2024): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v8i2.9166

Abstract

We have successfully developed a mobile program to address the challenges of marine and coastal observation serves as a solution to the communication gap between local peoples with ocean issues. In this app, we examine common of marine problems encountered by civilian and discuss the methods used to diagnose and resolve these issues. Some preventive measures can be taken are mangrove replanting programs, satellite and drone monitoring systems to monitor illegal activities at sea and campaigns to reduce the use of single-use plastics and raise awareness of the importance of marine conservation. These can be combined in a digital application connected to a smartphone. The application can answer future challenges related to observation and preventive measures for strengthening and mitigating disasters in marine and coastal ecosystems that can support maritime-based economic resilience in Indonesia. The application is MyOcean that can handle several problems related with ocean issues. The following displays the home page and registration page on the web-based boarding search application. By utilizing these applications, users can improve their understanding, management, and preservation of coastal areas. These applications are suitable for various groups, including fishermen, government, and the general public.
Penerapan Transfer Learning untuk Klasifikasi Citra Bunga Berbasis Convolutional Neural Network Simangunsong, Juanto; Simanjuntak, Nurmala Dewi; Matondang, Aprima Anugerah
Jurnal Minfo Polgan Vol. 14 No. 1 (2025): Artikel Penelitian
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/jmp.v14i1.14980

Abstract

Klasifikasi citra bunga merupakan salah satu tantangan dalam pengolahan citra digital yang memerlukan ketelitian tinggi dalam mengenali pola visual yang kompleks. Penelitian ini bertujuan untuk menerapkan metode transfer learning berbasis arsitektur Convolutional Neural Network (CNN) dalam mengklasifikasikan citra bunga dari dataset Oxford 102 Flower. Model pretrained yang digunakan meliputi VGG16, ResNet50, dan MobileNetV2, dengan penyesuaian pada layer output untuk mendukung klasifikasi 102 kelas bunga. Data citra diproses melalui teknik augmentasi dan normalisasi, kemudian dibagi menjadi data latih, validasi, dan uji. Hasil pelatihan menunjukkan bahwa model mampu mencapai akurasi validasi di atas 90%, dengan nilai loss yang menurun secara konsisten, tanpa indikasi overfitting. ResNet50 menunjukkan performa terbaik dalam hal keseimbangan antara akurasi dan stabilitas loss. Kesimpulannya, transfer learning terbukti efektif dan efisien dalam menyelesaikan tugas klasifikasi citra bunga, serta memiliki potensi besar untuk diimplementasikan dalam aplikasi identifikasi tanaman otomatis.
Mental disorder classification with exploratory data analysis (EDA) Simangunsong, Juanto; Simanjuntak, Mutiara S; Simanjuntak, Nurmala Dewi
Journal of Intelligent Decision Support System (IDSS) Vol 7 No 3 (2024): Intelligent Decision Support System (IDSS)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/idss.v7i3.252

Abstract

Classification of mental disorders is the process of grouping mental disorders into categories based on their symptoms, causes and consequences.  EDA is a data analysis strategy that emphasizes open-mindedness, creativity and diverse perspectives. EDA aims to explore as much data as possible, without imposing previous assumptions or models, until a coherent, coherent story emerges. EDA can help generate new hypotheses, identify patterns and outliers, and uncover underlying structures and relationships in data. This paper shows how EDA can be used to analyze and understand mental disorders data from a variety of sources and perspectives. We used EDA methods to explore the characteristics, prevalence, and distribution of mental disorders, as well as the relationships and interactions between mental disorders and other variables. We also compared EDA results with mental disorder classification systems such as the Diagnostic and Statistical Manual of Mental Disorders (DSM). We show that EDA can provide a more comprehensive and nuanced understanding of mental disorder data, as well as highlight the challenges and limitations of mental disorder classification. We hope this paper will illustrate the potential and benefits of EDA for mental disorders research and practice
¬¬¬Design of search information system using mobile application for car problems in Deli Serdang regency Matondang, Aprima; Simanjuntak, Andrean; Simanjuntak, Mutiara; Simangunsong, Juanto
Jurnal Mandiri IT Vol. 13 No. 1 (2024): July: Computer Science and Field
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v13i1.326

Abstract

We successfully developed the mobile program that can solve the car problems that may be difficult to find the location of garage service. We developed MyBengkel as the solution of the problems between car owners and garage location. We delve into the common types of car problems encountered by drivers and explore the methods used to diagnose and resolve them. From routine maintenance to complex repairs, we will discuss the underlying causes of these issues and examine the technologies and tools employed in modern automotive diagnostics. The location interest in Deli Serdang regency and ist surrounding. The data compilation shows the total casualties in 2021 and 2022 is ranging at 80 – 120 cases in Deli Serdang with various roads type. This application makes it easy to get information on car problems facilities, appropriate prices and boarding car and garage service locations for local peoples and increases promotional opportunities for the garage owners in Deli Serdang locations
Co-Authors Aprima Anugerah Matondang Matondang, Aprima Matondang, Aprima A. Mutiara S. Simanjuntak Simanjuntak, Andrean Simanjuntak, Nurmala Dewi